Journal Cover International Journal of Environment
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  This is an Open Access Journal Open Access journal
   ISSN (Print) 2091-2854
   Published by Nepal Journals Online Homepage  [74 journals]
  • Diversity of Fodder Plants of Betalghat Block, Nainital district, Western
           Himalaya

    • Authors: Naveen Ch. Pandey, G.C. Joshi, Lalit M. Tewari, Y.P.S. Pangtey
      Pages: 1 - 27
      Abstract: The Himalaya is well recognized for its bio-physical diversity and socio-cultural heritage, traditional systems and an ample quantity of indigenous knowledge. The study was conducted with the help of Participatory Rural Appraisal (PRA) tool to document the diversity of fodder plants of Betalghat Block of Nainital District (Western Himalaya). Total 210 fodder plants species belonging to 70 families, 164 genera of different habits such as trees (35%), shrubs (31%), herbs (25%), and climbers (9%), were recorded. Out of 70 families, 12 dominant families were Poaceae (18 species), followed by Fabaceae (16 species), Moraceae (10 species), Rosaceae (10 species), Asteraceae (8 species), Euphorbiaceae (7 species), Mimosaceae (6 species), Caesalpinaceae (5 species), Ranunculaceae (5 species), Rhamnaceae (5 species), Urticaceae (5 species) and Rubiaceae (5 species). Of the total recorded species, 41% of the species were used during winter days, 38% during summer and 21% throughout the year. For each species, scientific and vernacular names, multipurpose uses (Fuel, medicinal, timber, agricultural tools, religious and fiber) were used. For the conservation of fodder plant species prioritization, mass multiplication with afforestation, reforestation and forest rehabilitation must be done.International Journal of EnvironmentVolume-6, Issue-4, Sep-Nov 2017, page: 1-27
      PubDate: 2018-01-09
      DOI: 10.3126/ije.v6i4.18907
      Issue No: Vol. 6, No. 4 (2018)
       
  • Assessment of Ambient Air Quality and Air Quality Index in Golden Corridor
           of Gujarat, India: A Case Study of Dahej Port

    • Authors: Hiren B. Soni, Jagruti Patel
      Pages: 28 - 41
      Abstract: Clean air is the basic requirement of all living organisms. In recent times, due to population growth, urban sprawl, industrial development, and vehicular boom, the quality of air is deteriorating and being polluted. Pollutants of major public health concerns include particulate matter, carbon monoxide, ozone, nitrogen dioxide, and sulfur dioxide, which pose serious threats to human health and hygiene. In the present study, prime particulate pollutants (PM10, PM2.5), and gaseous pollutants (SO2, and NO2) were estimated at seven stations in and around Dahej Port, Gujarat, India. The obtained values of PM10, PM2.5, SO2, and NO2 in all the studied stations (seven) ranged from 67.39 to 98.75, 29.57 to 45.79, 17.76 to 22.29 and 28.29 to 32.42 mg/m3, respectively. The level of PM10 at all sampling locations, and that of PM2.5 at Station A3 (Lakhigam) were found little higher than prescribed permissible limits of CPCB standards, while SO2 and NO2levels were within the acceptable range. The Air Quality Index (AQI) score was found to be ranged from 76.50 to 97.75, which is at satisfactory level as per CPCB standards. Further, precautionary measures and management strategies to minimize the effect of particulate as well as gaseous pollutants have also been suggested for achieving its ambient levels in and around Dahej Port, Gujarat, India.International Journal of EnvironmentVolume-6, Issue-4, Sep-Nov 2017, page: 28-41
      PubDate: 2018-01-09
      DOI: 10.3126/ije.v6i4.18908
      Issue No: Vol. 6, No. 4 (2018)
       
  • Study on Internal Timber Demand Supply Ratio in Community Forest Users’
           Groups of Middle Mountain Region of Nepal

    • Authors: Bishwa Bandhu Sapkota, Kisman Bhattarai, Simant Rimal
      Pages: 42 - 55
      Abstract: Higher internal timber demand compared to the supply capacity of forest has been attributing to scarcity of timber within Community Forest Users’ Groups (CFUGs) and subsequently posing risk to the sustainability of forest. It is therefore becoming crucial to examine the factors behind such high demand to supply ratio and quantify their relationship to help in optimum allocation of forest resources to the community. In this study, we selected potential variables that could affect the internal demand-supply (DS) ratio in a community forest users’ groups, examined their correlation with it, and develop a parsimonious model that could explain the relationship between them using linear regression technique and Akaike Information Criterion methodology. The correlation coefficient analysis showed that household density (0.75) had very strong relationship whereas other predictor variables such as, growing stock per hectare (0.35), percentage of households involved in agriculture (0.37), area of forest (-0.39), percentage of timber yielding species in a forest (-0.56), and percentage of rich household (0.62) in a CFUG had weak to fair relationship with DS ratio. Among the four different models designed with the top three highly correlating variables, the third model utilizing household density and percentage of timber yielding species proved to be most parsimonious model. The developed linear model is of high relevance for forest officials in rational and scientific formation of community forest users’ group and handover of forest resources to such groups. International Journal of EnvironmentVolume-6, Issue-4, Sep-Nov 2017, page: 42-55
      PubDate: 2018-01-09
      DOI: 10.3126/ije.v6i4.18909
      Issue No: Vol. 6, No. 4 (2018)
       
  • Quality Assessment of Ground Water in Dhamar City, Yemen

    • Authors: Hefdallah Al Aizari, Ahamed Lebkiri, Mhammde Fadli, Saeed S. Albaseer
      Pages: 56 - 71
      Abstract: Chemical and statistical regression analysis on groundwater at five fields (17 sampling wells) located in Dhamar city, the central highlands of Yemen, was carried out. Samples were collected from the ground water supplies (tube wells) during the year 2015. Physical parameters studied include (values between bracket s represents the measured mean values) temperature (T, 25°), total dissolved solids (TDS, 271.47), pH (7.5), and electrical conductivity (EC, 424.18). The chemical parameters investigated include total hardness (TH, 127.45), calcium (Ca2+, 32.89), magnesium (Mg2+, 11.03), bicarbonate (HCO3̶, 143.84), sulphate (SO42-, 143.84), sodium (Na+, 35.11), potassium (K+, 6.28) and Chloride (Cl ̵, 22.69). The results were compared with drinking water quality standards issued by Yemen standards for drinking water. Except for T° and pH, all other measured parameters fall below the minimum permissible limits. The correlation between various physio-chemical parameters of the studied water wells was performed using Principal Component Analysis (PCA) method. The obtained results show that all water samples are potable and can be safely used for both drinking and irrigation purposes. This comes in agreement with the public notion about groundwater of Dhamar Governorate. Sodium Absorption Ratio (SAR) values were calculated and found below 3 except for one drill. The results revealed that systematic calculations of correlation coefficients between water parameters and regression analysis provide a useful means for rapid monitoring of water quality.International Journal of EnvironmentVolume-6, Issue-4, Sep-Nov 2017, page: 56-71
      PubDate: 2018-01-09
      DOI: 10.3126/ije.v6i4.18910
      Issue No: Vol. 6, No. 4 (2018)
       
  • Biomass Carbon Content in Schima- Castanopsis Forest of Midhills of Nepal:
           A Case Study from Jaisikuna Community Forest, Kaski

    • Authors: Sushma Tripathi, Chandra Bahadur Thapa, Amrit Sharma, Ganesh Paudel
      Pages: 72 - 83
      Abstract: Community forests of Nepal’s midhills have high potentiality to sequester carbon. This paper tries to analyze the biomass carbon stock in Schima-Castanopsis forest of Jaisikuna community forests of Kaski district, Nepal. Forest area was divided into two blocks and 18 sample plots (9 in each block) which were laid randomly. Diameter at Breast Height (DBH) and height of trees (DBH≥5cm) were measured using the DBH tape and clinometer. Leaf litter, herbs, grasses and seedlings were collected from 1*1m2 plot and fresh weight was taken. For calculating carbon biomass is multiplied by default value 0.47. The AGTB carbon content of Chilaune, Katus and other species were found 19.56 t/ha, 18.66 t/ha and 3.59 t/ha respectively. The AGTB of Chilaune dominated, Katus dominated and whole forest was found 43.78 t/ha, 39.83 t/ha and 41.81 t/ha respectively. Carbon content at leaf litter, herbs, grasses and seedlings was found 2.73 t/ha. Below ground biomass carbon at whole forest was found 6.27 t/ha. Total biomass and carbon of the forest was found 108.09 t/ha and 50.80 t/ha respectively. Difference in biomass and carbon content at Chilaune dominated block and Katus dominated block was found insignificant. This study record very low biomass carbon content than average of Nepal's forest but this variation in carbon stock is not necessarily due to dominant species present in the forest. Carbon estimation at forest of different elevation, aspect and location are recommended for further research. International Journal of EnvironmentVolume-6, Issue-4, Sep-Nov 2017, page: 72-84
      PubDate: 2018-01-09
      DOI: 10.3126/ije.v6i4.18911
      Issue No: Vol. 6, No. 4 (2018)
       
 
 
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