Subjects -> FORESTS AND FORESTRY (Total: 130 journals)
    - FORESTS AND FORESTRY (129 journals)
    - LUMBER AND WOOD (1 journals)

FORESTS AND FORESTRY (129 journals)                     

Showing 1 - 12 of 12 Journals sorted by number of followers
Forest Ecology and Management     Hybrid Journal   (Followers: 63)
Canadian Journal of Forest Research     Hybrid Journal   (Followers: 28)
Forest Policy and Economics     Hybrid Journal   (Followers: 21)
Landscapes     Hybrid Journal   (Followers: 18)
Agroforestry Systems     Open Access   (Followers: 16)
Journal of Forestry     Hybrid Journal   (Followers: 16)
Forestry: An International Journal of Forest Research     Hybrid Journal   (Followers: 15)
Urban Forestry & Urban Greening     Hybrid Journal   (Followers: 11)
Canadian Journal of Plant Science     Full-text available via subscription   (Followers: 11)
Advance in Forestry Research     Open Access   (Followers: 10)
Natural Areas Journal     Full-text available via subscription   (Followers: 10)
Journal of Natural Resources Policy Research     Hybrid Journal   (Followers: 10)
Peer Community Journal     Open Access   (Followers: 10)
Forestry Chronicle     Full-text available via subscription   (Followers: 9)
Journal of Research in Forestry, Wildlife and Environment     Open Access   (Followers: 8)
Arboriculture and Urban Forestry     Partially Free   (Followers: 8)
Forest Science     Hybrid Journal   (Followers: 8)
Arboricultural Journal : The International Journal of Urban Forestry     Hybrid Journal   (Followers: 7)
European Journal of Forest Research     Hybrid Journal   (Followers: 7)
International Journal of Agriculture and Forestry     Open Access   (Followers: 7)
Scandinavian Journal of Forest Research     Hybrid Journal   (Followers: 7)
Journal of Sustainable Forestry     Hybrid Journal   (Followers: 7)
Appita Journal: Journal of the Technical Association of the Australian and New Zealand Pulp and Paper Industry     Full-text available via subscription   (Followers: 6)
Journal of Biodiversity Management & Forestry     Hybrid Journal   (Followers: 6)
Journal of Horticulture and Forestry     Open Access   (Followers: 6)
Journal of Wood Chemistry and Technology     Hybrid Journal   (Followers: 6)
Journal of Agriculture, Forestry and the Social Sciences     Full-text available via subscription   (Followers: 6)
Advances in Forestry Science     Open Access   (Followers: 5)
Forest Ecosystems     Open Access   (Followers: 5)
Annals of Forest Science     Open Access   (Followers: 5)
Journal of Forest Economics     Hybrid Journal   (Followers: 5)
International Forestry Review     Full-text available via subscription   (Followers: 5)
Revue forestière française     Full-text available via subscription   (Followers: 4)
Forests, Trees and Livelihoods     Partially Free   (Followers: 4)
Journal of Forestry Research     Hybrid Journal   (Followers: 4)
International Journal of Forestry Research     Open Access   (Followers: 4)
Southern Forests : a Journal of Forest Science     Hybrid Journal   (Followers: 3)
Research Journal of Forestry     Open Access   (Followers: 3)
Forests     Open Access   (Followers: 3)
Trees     Hybrid Journal   (Followers: 3)
Journal of Wood Science     Open Access   (Followers: 3)
Indian Forester     Full-text available via subscription   (Followers: 3)
New Zealand Journal of Forestry Science     Open Access   (Followers: 3)
Revista Verde de Agroecologia e Desenvolvimento Sustentável     Open Access   (Followers: 3)
iForest : Biogeosciences and Forestry     Open Access   (Followers: 3)
Trees, Forests and People     Open Access   (Followers: 3)
Frontiers in Forests and Global Change     Open Access   (Followers: 3)
New Forests     Hybrid Journal   (Followers: 2)
Ghana Journal of Forestry     Full-text available via subscription   (Followers: 2)
Rural Sustainability Research     Open Access   (Followers: 2)
Ciencia forestal en México     Open Access   (Followers: 2)
Tanzania Journal of Forestry and Nature Conservation     Full-text available via subscription   (Followers: 2)
Australian Forest Grower     Full-text available via subscription   (Followers: 2)
Wood and Fiber Science     Full-text available via subscription   (Followers: 2)
Current Landscape Ecology Reports     Hybrid Journal   (Followers: 2)
Central European Forestry Journal     Open Access   (Followers: 2)
Bosque     Open Access   (Followers: 2)
Forest Science and Technology     Open Access   (Followers: 2)
Asian Journal of Research in Agriculture and Forestry     Open Access   (Followers: 1)
Current Forestry Reports     Hybrid Journal   (Followers: 1)
Revista Ecologia e Nutrição Florestal - ENFLO     Open Access   (Followers: 1)
International Journal of Agriculture, Forestry and Life Sciences     Open Access   (Followers: 1)
Eurasian Journal of Forest Science     Open Access   (Followers: 1)
Asian Journal of Forestry     Open Access   (Followers: 1)
Forestry Letters     Open Access   (Followers: 1)
Indonesian Journal of Forestry Research     Open Access   (Followers: 1)
East African Agricultural and Forestry Journal     Hybrid Journal   (Followers: 1)
Bartın Orman Fakültesi Dergisi / Journal of Bartin Faculty of Forestry     Open Access   (Followers: 1)
Expert Opinion on Environmental Biology     Hybrid Journal   (Followers: 1)
Dissertationes Forestales     Open Access   (Followers: 1)
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
Australian Forestry     Hybrid Journal   (Followers: 1)
Colombia Forestal     Open Access   (Followers: 1)
International Journal of Forest Engineering     Hybrid Journal   (Followers: 1)
INNOTEC : Revista del Laboratorio Tecnológico del Uruguay     Open Access   (Followers: 1)
Open Journal of Forestry     Open Access   (Followers: 1)
Small-scale Forestry     Hybrid Journal   (Followers: 1)
Forest Pathology     Hybrid Journal   (Followers: 1)
Selbyana     Open Access  
Journal of Bioresources and Bioproducts     Open Access  
Lesnoy Zhurnal     Open Access  
Parks Stewardship Forum     Open Access  
Silva Balcanica     Open Access  
Savannah Journal of Research and Development     Open Access  
Textual : Análisis del Medio Rural Latinoamericano     Open Access  
Madera y Bosques     Open Access  
Journal of Forest and Natural Resource Management     Open Access  
Forestry : Journal of Institute of Forestry, Nepal     Open Access  
BIOFIX Scientific Journal     Open Access  
Acta Brasiliensis     Open Access  
Jurnal Pertanian Terpadu     Open Access  
Jurnal Sylva Lestari     Open Access  
Proceedings of the Forestry Academy of Sciences of Ukraine     Open Access  
Iranian Journal of Forest and Poplar Research     Open Access  
Ormancılık Araştırma Dergisi / Turkish Journal of Forestry Research     Open Access  
European Journal of Forest Engineering     Open Access  
Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi / Artvin Coruh University Journal of Forestry Faculty     Open Access  
Revista Forestal Mesoamericana Kurú     Open Access  
Jurnal Penelitian Sosial dan Ekonomi Kehutanan     Open Access  
Revista Cubana de Ciencias Forestales     Open Access  
Wahana Forestra : Jurnal Kehutanan     Open Access  
Annals of Forest Research     Open Access  
Forest@ : Journal of Silviculture and Forest Ecology     Open Access  
Jurnal Ilmu Kehutanan     Open Access  
Jurnal Penelitian Kehutanan Wallacea     Open Access  
Annals of Silvicultural Research     Open Access  
Revista de Agricultura Neotropical     Open Access  
Banko Janakari     Open Access  
Folia Forestalia Polonica. Seria A - Forestry     Open Access  
Rwanda Journal     Full-text available via subscription  
Journal of Environmental Extension     Full-text available via subscription  
La Calera     Open Access  
Revista Chapingo. Serie Ciencias Forestales y del Ambiente     Open Access  
Quebracho. Revista de Ciencias Forestales     Open Access  
Foresta Veracruzana     Open Access  
Agrociencia     Open Access  
Forestry Studies     Open Access  
Maderas. Ciencia y tecnología     Open Access  

           

Similar Journals
Journal Cover
International Journal of Forestry Research
Journal Prestige (SJR): 0.373
Citation Impact (citeScore): 1
Number of Followers: 4  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1687-9368 - ISSN (Online) 1687-9376
Published by Hindawi Homepage  [339 journals]
  • Local Communities’ and Parishioners’ Perceptions on Monasteries’
           Forest Patch Plant Biodiversity Conservation in Northern Wollo Ethiopia

    • Abstract: Both anthropogenic and climate change threaten Ethiopia’s forest regions. Sacred and religious sites maintain most indigenous and native plant species. Northern Ethiopia farmed and settled for thousands of years, causing environmental damage and deforestation. This study examines biodiversity conservation perceptions and biodiversity preferences by local communities and churchgoers. Among the five monasteries in the area, two were selected based on the stated chriteria. The selection criteria for monasteries were a historical antiquity of more than 50 years and a thick forest cover of more than 10 hectares. Multistage sampling was utilized to choose sample residences. Respondents were chosen using simple random sampling and proportion to population size. Among the total population, 310 survey participants were selected. It was found that the commitment to biodiversity conservation of local people and parishioners is directly explained by age, education, the number of years in a status region, and income. It is highlighted that a higher level of education, age above 51 years, and middle-income socioeconomic status most significantly affect respondents’ biodiversity engagement.
      PubDate: Mon, 30 Jan 2023 11:05:01 +000
       
  • Farmer’s Perceptions of Agroforestry Practices, Contributions to Rural
           Household Farm Income, and Their Determinants in Sodo Zuria District,
           Southern Ethiopia

    • Abstract: Agroforestry has been widely used in developing countries as a solution to mitigate the effects of climate variability. However, its significance to the well-being of farmers in rural communities has not been thoroughly investigated. The purpose of this study was to analyze the contribution of agroforestry practices (AFPs) to the farm income of rural families, the perceptions of farmers, and factors that affect AFPs’ contribution to household income in the Sodo Zuria district. The optimal sample size of 173 households from the three study sites was selected through a stratified random sampling procedure. Data were collected using structured interviews, focus group discussion, observation, and key informant interviews. According to the findings, most farmers in the research area had a good perception of the benefits of agroforestry methods. The yearly mean gross income from various agroforestry approaches was 15,990.90 ETB·ha−1·yr−1 for nonadopters and 32,471.24 ETB·ha−1·yr−1 for adopters, respectively. Tree and fruit tree integration with crops, animals, or pastures has the potential to significantly increase food production and farmer economic situations. Multiple linear regression analysis indicated that the size of the farm, the number of livestock, the experience of agroforestry, and the extension service affect the adoption of agroforestry practices to house farm income positively, while the size of the family negatively affects it. Agroforestry plays a critical role in reducing food poverty and enhancing farmer livelihood resilience (reducing farmers’ vulnerability to climate variability). However, determining the extent to which this is true is challenging because both farmer groups often have low levels of assets such as land and income, which limits tree planting to reaping maximum benefits from agroforestry. As a result, the government and other responsible entities should pay special attention to assisting smallholder farmers in using agroforestry practices for the sustainability of their livelihoods that have been hampered by agricultural land scarcity.
      PubDate: Thu, 12 Jan 2023 03:50:01 +000
       
  • Intraspecific Morphological Variations among the Populations of Milicia
           excelsa, Pouteria adolfi-friedericii, and Prunus africana in Different
           Natural Forests of Southwest Ethiopia

    • Abstract: Plants have the ability to change their morphological and physiological traits in response to environmental variations. The objective of this study was to determine the intraspecific morphological variations among the populations of M. excelsa, P. adolfi-friedericii, and P. africana in southwest Ethiopia. Representative forests were systematically selected, and a total of ten transects of 160 m length were randomly laid at 100 m intervals, and 30 quadrats (20 m by 20 m) were laid along each transect line at 50 m intervals. Stem height, DBH, and bole length of trees for each species were measured in each quadrat. The intraspecific morphological variations among populations of each species were computed using hierarchical clustering and principal component analysis (PCA) with R.4.1.3. A total of 55 trees for M. excelsa in four forests, 232 trees for P. adolfi-friedericii in eight forests, and 184 trees for P. africana in five forests were measured. Accordingly, three, five, and three population clusters were identified for M. excelsa, P. adolfi-friedericii, and P. africana, respectively. The analysis of similarity (ANOSIM) indicated the presence of considerable dissimilarity among population clusters for M. excelsa and P. africana but was not significant at (R = 0.9, ). However, ANOSIM indicated the presence of considerable dissimilarity among population clusters of P. adolfi-freidericii, which was significant at (R = 0.9, ). Overall, there was a visible morphological variability among the populations of M. excelsa, P. adolfi-friedericii, and P. africana each at the different sites. Therefore, it is important to look for conservation strategies, such as domestication, to maintain and improve the variability and genetic quality among the populations in a wider scale of the ecological and social environment.
      PubDate: Wed, 28 Dec 2022 06:20:01 +000
       
  • Floristic Composition, Diversity, and Vegetation Structure of Woody
           Species in Kahitassa Forest, Northwestern Ethiopia

    • Abstract: Kahitassa forest is one of the State Forests of Ethiopia with great floral diversity. However, the forest is under threat due to selective cutting of important indigenous tree species and encroachment of the forest area for agricultural purpose. Therefore, the study was intended to explore the floristic composition, structure, and regeneration status of Kahitassa forest. Vegetation data were collected from June to November 2020 using systematic sampling technique from 6 parallel transect lines laid out 500 m apart each other. A total of 101 plots (20 × 20 m) were laid with 100 m apart along transect lines. Vegetation description parameters including Shannon–Weiner Index, evenness, density, DBH, basal area, frequency, and importance value indices (IVI) were computed to characterize both species diversity and vegetation structure. Hierarchical cluster analysis was used to identify plant communities using R (Version 3.1.2) software. A total of 46 woody plant species belonging to 45 genera and 36 families were identified in the forest. Fabaceae and Rosaceae were the dominant families both constituting 34.78% of the total species. The Shannon diversity index (H’) and evenness (E) values of the study area were 2.92 and 0.72, respectively, showing the healthy status of the forest. Five plant community types, namely, Croton macrostachyus–Embelia schemperi, Maytenus undata–Olea europaea subsp. cuspidata, Pavetta abyssinica–Bersama abyssinica, Peucadanum mattiroli, Albizia schimperiana, and Rubus apetalus–Phytolacca dodecandra were identified. The most dominant species as indicated by their important value index (lVI) were Pavetta abyssinica (34.08), Vachellia abyssinica (IVI = 25.13), and Albizia schimperiana (IVI = 21.45). Analyses of DBH revealed that the forest exhibits an inverted J-shape which is typical for selective cutting of multipurpose trees from the forest. Conservation approaches such as enrichment of selected species as well as in situ and ex situ conservation are needed for some plant species under threat.
      PubDate: Mon, 12 Dec 2022 10:35:01 +000
       
  • AMMI Automatic Mangrove Map and Index: Novelty for Efficiently Monitoring
           Mangrove Changes with the Case Study in Musi Delta, South Sumatra,
           Indonesia

    • Abstract: Mapping mangroves using satellite imagery has been done for decades. It helps reduce obstacles in inaccessible places caused by the mangroves’ intricate root system, thick mud, and loss of position signals. There is an urgent need to produce a mangrove map that automatically and accurately covers the mangroves with the density index of the canopy as visually represented in satellite imagery. The research was conducted through an analytical desk study of the mangrove features from space. The study aims to develop a simple formula for automatically tracing, capturing, and mapping mangroves and determining the canopy density index from open access of satellite data to eliminate manual digitization work, make it easy to use, and save cost and time. The goal is to monitor, assess, and manage the condition of mangroves for anyone interested in mangroves, including the central government, local authorities, and local communities. As a result, the authors proposed an algorithm: (ρNIR − ρRed)/(ρRed + ρSWIR1) ∗ (ρNIR − ρSWIR1)/(ρSWIR1 − 0.65 ∗ ρRed). Experimental results in many mangrove forests using Landsat 5 TM, Landsat 7 ETM, Landsat 8 OLI, and Sentinel 2 imageries show satisfactory performance. The maps capture the spatial extent of the mangroves automatically and match the satellite imagery visually. The index correlates significantly with the Normalized Difference Water Index (NDWI), with R2 reaching 0.99. The research will apply the formula of the Musi Delta mangrove complex in South Sumatra, Indonesia. The advantage of the algorithm is that it works well, is easy to use, produces mangrove maps faster, informs the index, and efficiently monitors the change in mangrove conditions from time to time.
      PubDate: Thu, 08 Dec 2022 10:20:01 +000
       
  • Influence of Soil Nutrients, Tree Age, and Sandalwood Provenances on
           Sandalwood Oil Yield and Quality

    • Abstract: East African Sandalwood (Osyris laceolata) is an important tree species used in perfumery and pharmaceutical industries. In Kenya, the tree is illegally poached and smuggled mostly to India as a substitute for Asian sandalwood. Therefore, there is a need to domesticate E. A. sandalwood to ease pressure on natural stands. The aim of this study is to determine ecological factors influencing Osyris oil yield and quality to guide the selection of provenances for on-farm domestication. Soil and woody samples were obtained from 12 provenances and used for soil and oil analysis, respectively. The results showed that only tree age significantly influenced the oil yield (r = 0.31, ). The GC-MS quality results recorded nine common and most abundant compounds across the study sites. These were Z-alpha-trans-bergamotol, alpha bisabolol, lanceol cis, beta bisabolene, alpha santalol, beta santalol, cis-alpha-copaene-8-ol, isopropyl myristate, and isopropyl palmitate. Baringo and Mbooni provenances had the highest number of compounds (8), followed by Homabay (7) while the majority (Chyulu, Kitui, Loita, Maralal, Marsabit, Muranga, and Narosura) had six and Ol Donyo Sabuk and Namanga had the least (5). The species diversity is therefore important for breeding, domestication, and conservation purposes.
      PubDate: Wed, 07 Dec 2022 15:20:00 +000
       
  • Determinants of Highland Bamboo (Yushania alpine) Culm Market Supply in
           Semen Ari District, South Omo Zone of Southern Ethiopia

    • Abstract: Bamboo is among the most significant nontimber forest products that can potentially support Ethiopia’s economic development and environmental protection. However, its potential is constrained by limited understanding of its importance and market development. Thus, this study was conducted to fill the knowledge gap by identifying factors affecting highland bamboo culm market supply in Semen Ari district of the South Omo zone. Multistage sampling technique was employed to draw 183 bamboo producer households from three randomly selected highland bamboo producing sites. Household surveys, focus group discussions, and key informant interviews were used to collect data. The data were analyzed by using descriptive statistics and multiple linear regression model. The result indicated that market information, extension service, land allocated for bamboo production, the experience of households in selling bamboo products, market distance, family size, sex of the respondent, and age of household head were variable that significantly affected the supply of bamboo culm to the market. Hence, enhancing the production and productivity of bamboo products through extension, regular training for farmers concerning the processing of bamboo products, improving the relationships of value chain actors, and improving infrastructure could increase producers’ revenue as well as the marketed supply of highland bamboo culms.
      PubDate: Tue, 22 Nov 2022 12:05:01 +000
       
  • Climate Change Adaptation: An Ecosystem-Based Approach for Livelihood
           Improvement of Fringe Communities around Worobong South Forest Reserve in
           Ghana

    • Abstract: Anthropogenic and climate-induced change can potentially impact negatively on direct dependents of forest ecosystem services. To help build resilient societies, we examined the vulnerability of ecosystem-dependent communities in the Worobong South Forest Reserve (WSFR). We also examined climate variability impacts on forests and further suggested ecosystem-based adaptation (EbA) strategies for livelihood improvements in the study area. The reserve can be found in the Eastern region of Ghana. We administered 250 questionnaires as well as studied time series data for temperature and rainfall with satellite images using the mixed method approach. The types of questionnaires used were open-ended and closed-ended semistructured questionnaires. The study also involved a focus group discussion and the development of trend analysis of relationships between the two data sets in 2016. Our results show that respondents perceived variation in average annual temperature and rainfall over the past few decades as the main reasons for the decline in the supply of bush meat, freshwater, tree barks, and leaves in the study area. The results of the questionnaire corroborated those of the data for the time series obtained from the Ghana Meteorological Agency (GMeT) which is correlated with changes in the structure of (WSFR). To build resilient livelihoods and ecosystems, residents suggested strategies such as intensification of agroforestry systems with gain sharing arrangements, forest regulation enforcement, and bushfire control as ways to sustain the forests in the WSFR. We conclude that any measure to develop any climate change resilient mechanism in the WSFR should include those suggestions from residents.
      PubDate: Thu, 17 Nov 2022 03:35:01 +000
       
  • Soil Respiration Variations in Temperate Rhododendron (Rhododendron
           arboreum) Forest of Annapurna Conservation Area (ACA) in Nepal

    • Abstract: Temperate forests are considered most fragile hence need to recognize their vulnerability owing to continuous climatic changes and anthropogenic activities. In this study, we assessed soil respiration (SR) by using the chamber method in a natural Rhododendron (Rhododendron arboreum) forest which is recognized as the world’s largest forest type located at Annapurna Conservation Area in the temperate region of Nepal. We evaluated the consequences of multiple ecological parameters mainly climatic and biotic factors on SR variations during the month of October in 2016 and 2017. Our results confirmed that SR well corresponded with soil temperature (ST) variables represented with the highly significant () exponential curve (y = 1.049e0.529x, 2016 and y = 26.34e0.284x, 2017). And the variation in SR was mediated by a short-range (2-3°C) of ST difference in the month of October during autumn season. However, the effect of soil water content (SWC) on SR was scattered and the photosynthetic photon flux density (PPFD) stood weak to represent the SR variation. The seasonal trend of SR was compatible with the PPFD and litter input with having accountable temporal, diurnal, and interannual variations of SR, ST, SWC, and litterfall. The SR over the entire measurement period were averaged at 269.9 mg CO2 m−2·h−1 in 2016 and 295.1 mg CO2 m−2·h−1 in 2017. Our study manifested that temperate forests could store maximum soil carbon with limited emission through SR and become a larger sink of atmospheric carbon dioxide even though SR is very sensitive to environmental changes and interactively affected by multiple ecological factors. Thus, our finding is an appreciable measure for the temperate forest to understand the regional carbon balance and suggested temperate forests are valued to incorporate them in evaluating global carbon budget.
      PubDate: Wed, 16 Nov 2022 05:05:01 +000
       
  • The Effect of Built-Up Area Density and Vegetation Density on Surface
           Temperature in Banjarmasin City

    • Abstract: Banjarmasin City continues to develop rapidly. Malls and settlements are the newly built-up area that has reduced vegetation cover leading to changes in surface temperature in Banjarmasin City. Analysis of temperature changes is needed to determine the effect of increasing built-up areas and decreasing vegetation cover. The surface temperature can be detected and analyzed using satellite imagery. The study aimed to analyze the built-up area and vegetation density index and their effect on changes in surface temperature in Banjarmasin City from 2015 to 2019. We employed remote sensing and surveys to monitor and detect regional changes in urban areas due to rapid development. Built-up areas can be mapped using the Normalized Difference Built-Up Index (NDBI) algorithm, and vegetation density can be mapped using the Normalized Difference Vegetation Index (NDVI) algorithm. The correlation value between building density and surface temperature in 2015 was 0.826, and in 2019, it was 0.969. This means that the NDBI of the built-up area density in 2015 and 2019 strongly correlates with surface temperature. Correlation values between the vegetation density score and the surface temperature were -0.860 in 2015 and -0.949 in 2019. All correlation results are negative, which means that the vegetation density has an inverse ratio to surface temperature; in other words, high vegetation density causes low surface temperature.
      PubDate: Tue, 08 Nov 2022 13:35:00 +000
       
  • Acacia seyal var.: Acacia fistula (Schweinf.) Oliv. Based Parkland
           Practice, Farmers Perception, and Management Techniques in Case of Jarsa
           Kebele, Guba Lafto District of Amhara Region, Northeast Ethiopia

    • Abstract: Acaciaseyal is seen as a common on-farm tree species in the Rift valley of Ethiopia, predominantly in the Guba Lafto district of northeastern Ethiopia. Maintenance and improving existing practices and incorporation of multipurpose trees in farms got a due focus to increase agricultural productivity, but the information is limited about farmers’ perceptions, traditional knowledge, and practice about the species and its parkland system in the study site. The information was gathered via household interviews, focused group discussions, and key informant interview tools. Systematic random sampling technique was employed for household selection. 47 sample households were selected, and information was generated via descriptive and logistic analysis techniques. The result explored that Acacia seyal was considered by respondents as an invasive species and the majority of household respondents (87%) showed a negative perception of intercropping the species with annual crops due to its impact on companion crops and soil values. However, most of them (61.7%) were willing to sustain it along the boundary (83%), at an on-farm soil bund (36.2%) and at an open grazing area (19.1%) for its off-farm economic role. They retained it primarily for fuel wood purposes (95%), for cash (34%), and for livestock feed (25%). Pruning is the main management practice adopted for the species for the sake of minimizing the shade effect and to get its byproducts. Generally, farmers reflect a negative attitude to the species’ productivity role in the integrated system but understand its positive socioeconomic contribution outside their crop farms. Therefore, the investigation directs, as it will be advantageous to manage the species under the off-farm growing niche for its better synchronization to the farmers, but further work needs to be conducted in large scale survey and on its economic advantage at off-farm growing conditions for a radical shift in the farming system.
      PubDate: Tue, 08 Nov 2022 11:05:02 +000
       
  • Woody Species Diversity and Biomass Carbon Sequestration in Private
           Residential Green Infrastructure of Dilla Town, Southern Ethiopia

    • Abstract: Urban forests have an important role in biodiversity conservation, environmental improvement, and ecosystem services including climate change mitigation enhancement. The objectives of the current study were to: assess plant types and management strategies of the owners; woody species’ composition, structure, and diversity; and estimate aboveground biomass of trees and associated carbon stock in private residential green infrastructure (PRGI) at Dilla town. This study was conducted at three kebeles, the lowest administrative unit in Ethiopia. Ninety-four households were randomly selected from a proportional sample size for each kebele. A complete inventory of woody species was done after measuring the area occupied by plants at each household. At plot level, the aboveground biomass of sampled trees was calculated by using an allometric biomass equation developed for agroforestry species. Diversity was described by using different indices The free software EstimateS 9.1.0 was used to generate data for the construction of sample-based rarefaction curves and SPSS version 20 for descriptive statistics. Based on plant types and arrangement, the households manage their PRGI in 15 categories on area size, ranging from 10 m2 to 1229 m2, with an average holding size of 207.5 m2. A total of 66 plant species belonging to 45 families were identified. Overall, a total of 1220 stem ha−1 contributed to an aboveground carbon stock of 64.35 ton ha−1 of which 50.4% is from fruit trees and the rest from timber trees. The results suggest that PRGIs can serve as reservoirs of non-native and native plant species, including five native tree species currently facing conservation concerns.
      PubDate: Thu, 03 Nov 2022 07:50:01 +000
       
  • Investigation of Woody Species Structure and Regeneration Status in the
           Central Rift Valley, Sidama Regional State, Ethiopia

    • Abstract: Protected areas are the most commonly used tool for in situ conservation of biodiversity. Selective removal of species proposed by the local communities living surrounding the national park and grazing pressure negatively affect the composition, structure, and regeneration of woody species. Assessment of vegetation structure and regeneration status of woody species is essential for orienting management activities. The purpose of this study was to investigate the floristic composition, population structure, and regeneration status of woody species in the Loka Abaya National Park, to design conservation strategies. A total of 99, 20 m × 20 m quadrats were systematically laid along an established line transect to collect a list of woody species, abundance, height, and diameter at breast height (DBH), while five 3 m × 3 m subquadrats within the main quadrats were established to assess the regeneration status of woody species. In each quadrat, all woody species were identified, counted, and recorded. In each quadrat, all tree and shrub species higher than ≥2 m in height and ≥2 cm in diameter at breast height were measured by a calibrated wooden stick and by a caliper, respectively. Density, frequency, basal area, importance value index (IVI), height, and diameter at breast height (DBH) were used for description of vegetation structure, while the density of mature trees, saplings, and seedlings was used for assessment of regeneration status of woody species. A total of 101 woody plant species representing 40 families in 69 genera were collected, identified, and documented. Fabaceae was the most diverse family representing 16 (15.84%) species, followed by Euphorbiaceae 9 species (8.91%) and Anacardiaceae with 6 species (5.94%). Four families including Combretaceae, Moraceae, Olacaceae, and Tiliaceae were represented by 4 species each. 4 families were also represented by 3 species each, 12 families were represented by two species each, and 18 families were represented by one species. The density of trees was 831.31 individuals ha−1, while the total basal area was 73.18 m2·ha−1. D. angustifolia, C. molle, E. schimperi, R. natalensis, O. europaea L. subsp. cuspidataD. cinerea, A. brevispica, I. mitis, and E. tirucalli were ecologically important woody species. The majority (75%) of woody plant species had a less than 5% importance value index (IVI). The diameter class distribution of selected tree species demonstrated various patterns of population structure, implying the existence of different population dynamics among ecologically important tree species. The regeneration assessment results demonstrate that 32.35% had poor regeneration, 19.12% had good regeneration, 16.17% had fair regeneration, 8.82% lacked regeneration, and 14.08% appeared as newly regenerated species in the national park. The majority of woody species had a small population size, and some of them were found in specific habitats which need attention for conservation, and those woody species lack regeneration study soil seed bank and propagation methods for sustainable conservation.
      PubDate: Fri, 28 Oct 2022 15:50:01 +000
       
  • The Status of Dry Evergreen Afromontane Forest Patches in Amhara National
           Regional State, Ethiopia

    • Abstract: Ethiopian dry evergreen afromontane forests are primary biodiversity priority areas including many forest patches of Amhara Region. Natural vegetation of the region is now almost exclusively limited to sacred places, very few protected and less accessible areas. Despite different studies on the various dry evergreen afromontane forest patches of the region, there was not a review work on these forest patches at a regional level. Lack of comprehensive review work creates ambiguity to the understanding of the current status of the forest patches. Scientific information on these forest patches is important for future managerial intervention and sustainable utilization. Thus, the review was aimed to evaluate the status of dry evergreen afromontane forest patches of the Region. Each forest patch contained 15–156 plant species with a total of 525 species under 328 genera and 112 families. Asteraceae was the most species richest family followed by Fabaceae. Most patches harbored considerable number of endemic plant species with a total of 46 species within 44 genera and 26 families. Asteraceae was the most endemic species rich family. Most forest patches had high diversity. Diameter at breast height (DBH) and height class analyses of most forest patches revealed an inverted J-shape pattern. Mean basal area of the forest patches ranged from 1 m2h−1 to 115.36 m2h−1. In most forest patches many number of species were put in low frequency classes. The forests had more seedlings and/or saplings than mature individuals. Although each patch had a rich source of biodiversity, it is influenced by severe anthropogenic disturbances. Therefore, appropriate managerial interventions are required.
      PubDate: Wed, 26 Oct 2022 05:05:01 +000
       
  • Spatial Patterns of Ceroxylon parvifrons (Engel) H.Wendl of the Montane
           Forests in Southern Ecuador

    • Abstract: The species of the genus Ceroxylon have narrow geographical ranges, and subsequently, their populations are subjected to a high degree of fragmentation due to deforestation and land conversion. Ceroxylon parvifrons (Engel) H. Wendl is a representative floristic species of the Andean rainforest; however, little information related to its natural history, ecology, biology, and conservation status is available, making it difficult to assess its biological relationship with the environmental factors and the current status of their populations in natural environments. Here, we studied the spatial pattern of adults, rosettes, and seedlings of C. parvifrons in the montane rainforest and assessed the role of populations’ spatial structure and intraspecific interactions on plant performance. A total of 460 individuals were categorized according to their size, with 11 adults, 10 juveniles, 336 rosettes, and 103 seedlings being recorded. C. parvifrons showed that the population is expanding during the first two stages of the plant (seedling and rosette). After this, there is a significant decrease where the frequency of individuals of the juvenile and adult categories tend to disappear from the population. The L (r) function shows a robust clustering throughout the entire scale for seedlings, rosettes, and adult palms. Also, the Poisson cluster process describes a patchy distribution in which plant individuals are distributed in clumps (clusters). Thus, this approximation related to spatial patterns of C. parvifrons will provide an important step for the conservation of this species in tropical zones.
      PubDate: Fri, 14 Oct 2022 10:05:01 +000
       
  • Regeneration of Natural Forests in the Hindu Kush Range: A Case Study of
           Quercus baloot Plants in Sheshikoh Oak Forests, District Chitral, Pakistan
           

    • Abstract: Regeneration of oak (Quercus baloot Griff.) forests is an issue of concern in Khyber Pakhtunkhwa province in general and Sheshikoh Valley of District Chitral in particular. The oak forests cover has been continuously deteriorated and depleted due to uncontrolled grazing, low moisture content of soil, and overusage of the plant as fuelwood and are hence the major contributors toward the failure of oak regeneration. The present study was aimed to asses’ different treatments and their impacts on the growth and regeneration of oak forests. This study was conducted in oak forests of Sheshikoh Valley, Chitral, where four plots of 2-acres each were established. Each plot was treated with separate treatment, that is, fencing, mixed treatment (fencing and fertile soil), fencing and trench treatment, and control plot and their regeneration capacity was studied and compared with each other. The data was collected in March and September between 2011 and 2015. The result showed that the number of plants in the first plot (fencing) were 23, with an average height of 43 inches and a diameter of 11.7 mm. In the second plot (fencing and fertile soil), 40 plants grew with an average height of 42 inches and a diameter of 10 mm, whereas in the third plot (fencing and trench), 45 plants developed with an average height of 48 inches and a diameter of 13 mm. However, the fourth plot (nontreated plants) showed poor germination with 8 plants, with an average height of 8.5 inches, and the diameter of plants was 3.7 mm. Therefore, the survival rate of plants in the first, second, and fourth plots remained unsatisfactory at the end of the research. In conclusion, the third treatment (fencing and trench) was the best suitable practice to stabilize oak forests in their natural zones.
      PubDate: Sat, 08 Oct 2022 05:50:01 +000
       
  • Utilizing Sentinel-2 Data for Mapping Burned Areas in Banjarbaru Wetlands,
           South Kalimantan Province

    • Abstract: Sentinel-2 imagery can identify forest and land fires in underground parts, surface fires, and crown fires. The dNBR and RBR spectral indices on Sentinel-2 images proved accurate in identifying. This study analyzed the index value for burned area mapping in wetland areas using Sentinel-2 imagery data in 2019 and hotspot data from the MODIS data. The indices used to identify the burned area and the severity of the fire was the differenced normalized burn ratio (dNBR) and relativized burn ratio (RBR). Visual validation tests were performed by comparing RGB composite images to check the appearance before and after combustion with dNBR and RBR results. The dNBR value accuracy was 91.5%, and for a kappa, the accuracy was 89.58%. The RBR accuracy was 92.9%, and the kappa accuracy was 0.91. The results confirmed that in the Banjarbaru area, RBR was more accurate in identifying burned areas than dNBR; both indices can be used for burned area mapping in wetland areas.
      PubDate: Fri, 07 Oct 2022 05:50:03 +000
       
  • Impacts of Industrialization on Plant Species Composition, Diversity, and
           Tree Population Structure in Tropical Moist Deciduous Forest in Bangladesh
           

    • Abstract: Industrial activities have various effects on biodiversity, posing significant threats to forest ecosystems. The current study describes the species composition, taxonomic diversity, and stand structure at Bhawal Sal forest, Gazipur, Bangladesh, as they are affected by industrialization. To achieve the goal, 30 different categorized industries within the forest were considered sampling points and three distance gradient sites viz. Site-1 = Adjacent to industries (0 m), Site-2 = 160 m distance and Site-3 = 320 m distance from industries were designated as treatments. A total of 90 quadrate plots (10 m × 10 m) were taken randomly, of which 30 plots were from each site. Through forest inventory, 46 species (24 trees, 8 shrubs, 5 climbers, and 9 saplings) were recorded from three sites. The study revealed that the stand density and basal area of mature trees (257 stems ha−1 and 8.06 ± 0.60 m2·ha−1) at Site-1 were significantly lower due to diverse industrial operations than other sites. Statistically, all the biodiversity indices of mature trees; Shannon–Wiener’s index (1.72), Simpsons index (0.82), Margalef’s index (1.38), Pielou’s evenness Index (0.39) was found to be lower at proximity to industries. The lowest species richness (12) of all plants was recorded from Site-1. However, the diameter and height distributions of Site-1 comprised young (10–20 cm·dbh) to medium-sized (20.1–30 cm·dbh) trees, while the medium to large sized (>30 cm·dbh) trees was contained at Site-3 in this study. The population structure of tree species at Site-1 also showed a fluctuating curve. Overall, this study highlights that plant ecosystems and tree population structure have declined tremendously due to industrialization. Hence, the current research could be significant for developing the management framework for the disturbed deciduous forest.
      PubDate: Tue, 04 Oct 2022 07:50:04 +000
       
  • Effect of Forest Management on Carbon Stock of Tropical Moist Afromontane
           Forest

    • Abstract: Moist tropical forests have a significant role in provisioning and regulating ecosystem services. However, these forests are under threat of deforestation and forest degradation. In Ethiopia, the moist evergreen Afromontane forests have the potential for carbon storage and support a high diversity of plant species. However, it is under severe threat of deforestation and degradation.This investigation was conducted to obtain adequate information on the carbon stock potential of the moist Afromontane forest of southwestern Ethiopia. A comparison of carbon stock was conducted between disturbed and undisturbed forests. A systematic sampling design was applied for recording woody species and soil data. A total of 100 main plots of 400 m2 were laid to record trees and shrubs with a diameter at breast height (DBH) ≥ 5 cm. The soil data were collected from 1 m2 subplots established at the four corners and the center of each main plot. The DBH and height were measured to calculate the aboveground carbon of trees and shrubs with DBH ≥ 5 cm. A total of 68 tree and shrub species belonging to 59 genera and 33 families were recorded. The mean carbon stock density was 203.80 ± 12.38 t·ha–1 (aboveground carbon stock) and 40.76 ± 2.47 t·ha–1 (belowground carbon stock). The highest proportion of aboveground carbon (t·ha–1) (42.34%) was contributed by a few tree individuals with DBH > 70 cm. The soil organic carbon stock (SOCS) (t·ha–1) for the depth of 0–30 cm is ranging from 58.97 to 198.33 across plots; the mean is 117.16 ± 3.15. The carbon stored in the moist Afromontane forest indicates its huge potential for climate change mitigation. Therefore, for the enhancement of forest biodiversity and carbon sequestration effective conservation measure and sound management approach is essential.
      PubDate: Fri, 30 Sep 2022 11:20:02 +000
       
  • Diversity, Structural, and Regeneration Analysis of Woody Species in the
           Afromontane Dry Forest of Harego, Northeastern Ethiopia

    • Abstract: The study was conducted in the Harego dry Afromontane forest, Northeastern Ethiopia, to analyze woody species composition, diversity, structure, and regeneration status. To collect the vegetation data, a total of 67 sample plots measuring were laid systematically. Species identity, abundance, height, and diameter at breast height (DBH) were recorded for each sample plot. Diversity, structural, and regeneration status were analyzed for the forest. A total of 50 woody species representing 35 families and 44 genera were identified and recorded. According to the IUCN Red List Category, Rhus glutinosa A. Rich and Prunus africana (Hook.f.) Kalkm. are vulnerable species. Fabaceae was the dominant family, and of the total species, 27 were shrubs, 19 were trees, and 4 were climbers. The species accumulation curve indicates that the majority of plant species in the study area were captured by our sampling efforts. The values of true Shannon (N1 = 17) and true Simpson (N2 = 11) indicate that species in the Harego forest are more or less evenly distributed. The abundance-frequency ratio of all woody species (WI = >0.05) indicates the heterogeneity of species composition. The total density and basal area were 4400 stems ha−1 and 9.66 m2 ha−1, respectively. The majority of the species fallen into the lower IVI classes. The diameter and height class distribution revealed an inverted J-shape. The increase in population demand and disturbance shows a high variation in stand structure and hampered natural regeneration, which needs immediate conservation actions.
      PubDate: Wed, 14 Sep 2022 13:20:06 +000
       
  • Correlation between Relative Humidity and Forest Seeds Moisture on the
           Incidence of Fungi

    • Abstract: The objective of the research was to evaluate the effect of relative humidity (RH) and moisture content (MC) on the incidence of pathogenic fungi on the seeds of Agave lechuguilla, Lippia graveolens, and Nolina cespitifera. Seeds were stored 90 days at 60, 75, 80, and 85% RH, and results were processed with a correlation analysis in the R software using the Spearman test. Higher fungi incidence (FI) in seeds was found from 10 to 20% RH; however, correlation between RH and MC of seeds was positive with r = 0.311 and . In general, RH is related to MC, but not to fungi incidence, which is related mainly to MC of seeds. Correlation between RH and FI for each seed species was not significant, r = 0.026, −0.040, and 0.071 and , 0.540, and 0.272 for A. lechuguilla, N. cespitifera, and L. graveolens, respectively. There was a positive correlation between the MC of seeds with fungi incidence; a negative correlation between the RH and the FI; and a positive correlation between the RH and the MC of seeds. In this type of seeds (orthodox), the MC is probably the most important factor in determining its longevity. The seeds under study can be stored in a 60% to 75% RH. Five fungi genera were found, predominating Aspergillus with five identified species.
      PubDate: Fri, 09 Sep 2022 15:50:01 +000
       
  • Exploring the Flora of South Sulawesi, Forest Vegetation, and Karst Areas
           as Bundle Dyeing on Silk Fabrics

    • Abstract: The development of dyeing frm natural substances for silk fabrics has been rapidly growing in recent years. This study aimed to explore the plant species prodsucing unique dyes and patterns on silk fabrics. The flowers and leaves of some plant species found at the research sites were assayed for their color and shape expression on the fabrics. The dyeing technique applied was the bundle dyeing or ecoprinting technique on the fabric’s surface with mordant alum and myrobalan. We obtained 297 plants consisting of 95 families and 181 genera. The plant species producing colors were trees (48.4%), shrubs (30.5%), and herbs, vines, ferns, and lycopods (21.1%). The plant species samples obtained were 213 (71.7%) producing color and 84 (28.3%) species not expressing color. The leaves and flowers producing colors and patterns on the fabrics suitable for bundle dyeing were 126 species and 19 species, respectively. The leaves produce colors without shape patterns; thus, they have potential roles as dyes for the dipping technique.
      PubDate: Wed, 31 Aug 2022 14:50:03 +000
       
  • Effect of Seed Pretreatment Methods on Germination and Early Seedling
           Growth of Senna spectabilis

    • Abstract: The objectives of the study were to evaluate the effect of pretreatment methods on germination of Senna spectabilis seed and determine the effect of pretreatment methods on height and root collar diameter growth of Senna spectabilis seedlings. The experimental treatments involved were control; seeds soaked in cold water for 12 h, 24 h, and 48 h; seeds soaked in hot water and allowed to cool for 12 h, 24 h, and 48 h; and nicked seeds using secateurs. The experiment was arranged in a completely randomized design (CRD) with four replications. The data variables assessed were seedling height, root collar diameter, and survival rate. Data were subjected to one-way ANOVA using Minitab software. Results showed that there were significant differences among treatment means on germination, seedling height, and root collar diameter, while the survival rate was not statistically significant . Nicked seeds and those soaked in hot water and allowed to cool for 12 h had an outstanding performance in terms of germination and seedling growth. It is, therefore, recommended that farmers should be encouraged to use nicked and hot water soaked for 12 h seed in order to achieve high germination and growth efficiencies in their homestead gardens.
      PubDate: Sun, 28 Aug 2022 12:50:03 +000
       
  • Human-Wild Animal Conflict in Banja Woreda, Awi Zone, Ethiopia

    • Abstract: Human-wild animal conflict has serious conservation consequences, both for populations of wild animals and for the people who live around wild animals’ habitats. The aim of this study was to assess the human-wild animal conflict in Banja Woreda, Awi Zone, Ethiopia. First, the area was selected purposively because it is expected to be prone to a high level of human-wild animal conflict, and then the selected areas were stratified based on the distance to wild animals’ habitats. A total of 95 household heads (HHs) from the two kebeles were interviewed using structured and semistructured questionnaires. Additional information was also gathered through focus group discussions (FGDs), key informant interviews, and personal observation during data collection. About 84 (88%) of the respondents replied that wild animals had an effect on the livelihood of the local communities through both crop and livestock loss. The crop and animal loss was different across the distance categories of the study area (). The highest proportion of loss was reported in the closest settlement than far-located settlements. The chi-square association test shows that there was a significant association () between livelihood activity across crops and domestic animal loss. The farmers who led their livelihoods in both farming and livestock activity reported higher animal and crop losses than the only farming or livestock activity. The crop types that were more raided by wild animals were maize and potato. The risks of crop raiding were significantly different among crop varieties (). Wild animals affected crops in different development stages, and mature stage ranked the first followed by fruiting stage. Crop growth stages that were attacked by wild animals showed significant variations (). Of the crop type that was attacked by wild animals, potato was highly attacked, which reaches to 113.8 quintals (28%), followed by maize 96 quintals (23%) and small millet 74.7 quintals (18%) within three years. The loss of crops in the kebeles was not significantly different (). Wild animals also affected the domestic animals; accordingly, 79 (83.2%) of the respondents replied that wild animals attacked all domestic animals and the remaining 16 (16.8%) said wild animals attacked goats, sheep, and chickens. However, the animal loss in the kebeles was not significantly different (). The trend of the population status of wild animals was significantly different among the perceptions of respondents (). The settlement near the forest habitat of wild animals and habitat loss due to agricultural expansion and deforestation were the major causes of conflict. The proportion of the causes of human-wild animal conflict in the area was significantly different (). According to the respondents, the most effective controlling mechanisms of the conflict were guarding, followed by fencing and slipping at night in cropland. Out of the total number of respondents, 65 (68.4%) said guarding is the most effective conflict control mechanism, for protecting both crop and livestock. To limit the negative impact of human-wild animal conflict, good wild animal habitat management is required, such as minimizing agricultural expansion and overgrazing, demarcating the forest habitats for wild animals only, and creating awareness among local communities.
      PubDate: Mon, 08 Aug 2022 23:05:04 +000
       
  • Effects of Income and Price on Household’s Charcoal Consumption in
           Three Cities of Tanzania

    • Abstract: More than 80% of the urban and periurban population in Tanzania depend on charcoal as their main source of energy for cooking. This charcoal is supplied from natural forests, mainly Miombo woodlands, and the high charcoal consumption is a main trigger for deforestation, forest degradation, and climate gas emissions. The country’s urban population is increasing at an annual rate of 5-6%, and better understanding of the urban demand for charcoal is of high interest regarding the country’s energy development, climate mitigation, and land use. We surveyed 360 households situated in the Tanzanian cities Dodoma, Morogoro, and Mtwara and analyzed statistically the impacts of household income, charcoal prices, and household size on the per capita charcoal consumption. For the total sample, statistically significant elasticities were found to be 0.03, −0.13, and −0.62 for per capita income, charcoal price, and household size, respectively. In the low-income group, the elasticities of charcoal price and household size were found to be statistically significant with the values of −0.44 and −0.59, respectively, whereas in the middle-income group, the household size was the only statistically significant variable, with elasticity −0.81. In the high-income group, we got statistically significant elasticities of 0.17 for per capita income and −0.44 for household size. These results are based on small samples and should be followed up by larger surveys.
      PubDate: Thu, 30 Jun 2022 11:05:01 +000
       
  • Floristic Diversity and Evaluation of the Potential of Spontaneous
           

    • Abstract: The Bigoudine watershed (Western High Atlas) enjoys a floristic originality and a large number of plant species of therapeutic and aromatic interest widely used by the local population in traditional medicine. This region is subject to very difficult geographical conditions and is occupied by a poor population with a fairly high rate of illiteracy. Ethnobotanical surveys and floristic and phytoecological surveys carried out in two periods, the first in 2003–2004 and the second in 2016–2018, made it possible to identify the spontaneous medicinal flora and assess the potential of medicinal and aromatic plants in the region. The assessment of the biomass potential is carried out on three medicinal species among the most widely used plants in the area, Thymus pallidus Coss. ex Batt, Lavandula dentata L., and Salvia lavandulifolia Vahl. The results obtained made it possible to catalog 57 spontaneous medicinal species divided into 44 genera and 26 families, the most dominant of which are Lamiaceae, Asteraceae, Amaranthaceae, Anacardiaceae, Asparagaceae, Cistaceae, Cupressaceae, Fabaceae, and Oleaceae. The location of these species has been identified, and the plant formations concerned have been delimited. The estimated biomass potential of Thymus pallidus Coss. ex Batt, Lavandula dentata L., and Salvia lavandulifolia Vahl. varies according to species, types of plant formations, their structures, and their biological states. This spontaneous medicinal floristic wealth, within the region studied, is exposed to severe socioeconomic conditions, which are the main causes of non-respectful exploitation of natural resources threatening their balance and sustainable regeneration. Medicinal and aromatic plants in the Bigoudine watershed region require adapted measures allowing the rational development of certain potentially exploitable plants and the conservation of heavily used and threatened species.
      PubDate: Wed, 29 Jun 2022 14:35:02 +000
       
  • Structure of Needle Highlights Ecological Adaptability and Microevolution
           of Natural Populations of Cedrus atlantica in Morocco

    • Abstract: The study of morphological and anatomical characteristics of leaves is important for assessing the geographical variation of species. The ecological adaptability of forty individuals from four populations of Cedrus atlantica were studied, based on analysis of morphological and anatomical traits. The results of the Spearman nonparametric coefficient of correlation showed that the number of stomatal lines (NLS) and the length of the needle (NL) are negatively correlated to altitude and positively to latitude and precipitation sums, while the width of the needle (NW), the thickness of the cuticle (CT), and the number of needles per rosette (NN/R) were negatively related to temperature. In addition, the sum of precipitation is negatively correlated with NW. The first two principal components account for 58.18% of the variation. According to Tukey’s test and Kruskal–Wallis test, all populations had at least three characters separating them at a statistically significant variation. Moreover, the hierarchical classification led us to the individualization of three main groups. All these results show an adaptation of the structure of the needles of C. atlantica from Morocco to the geographical position and the climatic conditions of the populations.
      PubDate: Wed, 29 Jun 2022 06:20:02 +000
       
  • Woody Species Composition, Structure, and Carbon Stock of Coffee-Based
           Agroforestry System along an Elevation Gradient in the Moist Mid-Highlands
           of Southern Ethiopia

    • Abstract: There is a limited effort in Ethiopia to study scientifically the ecological features of traditional coffee-based agroforestry systems. This study was initiated to determine the structure, composition, and carbon stock of woody species along an elevation gradient of a traditional coffee-based agroforestry system in Yirgacheffe district, southern Ethiopia. Woody plants’ inventory was conducted in thirty-eight sampling quadrats (20 20 m) along five elevation contours and eight transects. Thirty-eight soil samples were taken from randomly selected subplots at 0–30 cm soil depths. In this study 32, woody plant species representing 23 families were recorded. Species richness ranged from 13–17 along the elevation gradient. Woody plant diversity indices appear to have a slight variation with increasing elevation gradient. Shade tree and coffee shrub density, DBH, and height showed significant variations along the elevation gradient. Total aboveground woody biomass carbon stock along elevation gradient ranged from 11.07 to 27.48 Mg·ha−1. Soil organic carbon stock was slightly different across elevation gradients with a mean range of 83.91 to 89.29 Mg·ha−1. These indicate that the agroforestry system has significant potential of storing and enhancing ecosystem carbon stocks across all the elevation gradients. The findings generally show that agroforestry systems in the study area are diverse, structurally complex with significant carbon storage in the soil and woody biomass.
      PubDate: Tue, 28 Jun 2022 10:50:03 +000
       
  • Effect of Different Growing Niches on Stand Structure of Highland Bamboo
           (Yushania alpina) in West Amhara, Northern Ethiopia

    • Abstract: The study was conducted to investigate the effects of different growing niches on the stand structure of highland bamboo (Yushania alpina) in west Amhara national regional state, northern Ethiopia. Four districts were selected purposively based on the existence of bamboo in different agroforestry practices. Inventory was carried out from 324 randomly selected plots of bamboo stands. The height of bamboo culms ranged between 12.2 ± 0.14 and 14.7 ± 0.12 m, and the diameter was between 4.9 ± 0.12 and 6.1 ± 0.11 cm with a mean value of 5.7 ± 0.102 cm. Growth performance (diameter and height size) based population distribution (histogram visualization) of bamboo stand indicated the normal distribution of height and diameter of culms. Density of culm varies between 19,188 ± 336 and 23,129 ± 390 culms ha−1 with an age composition of 26 : 45 : 29 ratio with 1 and 3 age classes. Diameters of the bamboo culms have inverse relationship with the age of bamboo culm. Clump stocking of highland bamboo varies between 953 ± 40 and 1220 ± 48 clump ha−1 with a culm : clump ratio of 1 : 47 ± 5 and 1 : 82 ± 6. Information on the stand structure of bamboo culms across niches is important to identify the productive plantation niche and develop a management plan for sustainable management and utilization of the bamboo resource.
      PubDate: Fri, 17 Jun 2022 10:20:01 +000
       
  • Tree Species Diversity in a Naturally Regenerated Secondary Forest in the
           Ruhande Arboretum, Rwanda

    • Abstract: This work studied the vegetation in a seven-hectare self-regenerated and protected forest about nine decades-old located in a previously cultivated site in the Ruhande Arboretum to identify woody species and their diversity. Ten parallel transects were established at 34 m intervals, leaving 25 m on either side to avoid an edge effect. Along transects, circular 16 m diameter plots spaced 20 m apart were established, making a total of 56 plots. In each plot, woody species were recorded and those with heights >2 m had their diameter at breast height measured. Phytosociological data including basal area, density, and frequency and their respective relative values were computed and used to determine species and family importance value indices within each plot. Across all plots, twenty-eight genera in 17 families were identified and 844 plants were recorded, including 755 trees and 89 shrubs, with most trees found in smaller diameter classes. Across all plots, only one Markhamia lutea tree was in the 50–60 cm diameter class and one Polyscias fulva was in the >90 cm diameter class. Of all woody species, Polyscias fulva was the most dominant since it had individuals with the biggest diameter. The number of individuals per family across all plots ranged from one for Cupressaceae, Dracaenaceae, Moraceae, and Solanaceae to 414 for Bignoniaceae. Across all plots, the diameter at breast height ranged from 1.8–97 cm. The species importance value index ranged from 0.3–41.8 for Nicotiana tabacum and P. fulva, respectively, while the family importance value index ranged from 0.2 for Annonaceae, Cupressaceae, Dracaenaceae, and Solanaceae to 41.6 for Araliaceae. Shannon and Simpson’s diversity indices were 1.772 and 0.707, respectively, while the evenness was 0.532, signifying that the forest was reasonably diverse. It is recommended that this forest can be conserved owing to its rich vegetation and to monitor its successional development.
      PubDate: Mon, 13 Jun 2022 13:05:01 +000
       
 
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