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Journal Cover International Journal of Environment
  [5 followers]  Follow
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2091-2854
   Published by Nepal Journals Online Homepage  [74 journals]
  • Comparative Assessment of Soil Organic Carbon Stock Potential under
           Agroforestry Practices and Other Land Uses in Lowlands of Bale

    • Authors: Bikila Mengistu, Zebene Asfaw
      Pages: 1 - 14
      Abstract: Soil organic carbon is the carbon associated with soil organic matter that is made up of decomposed plant and animal materials. This study was conducted in Dallo Mena district to estimate the amount of soil carbon stock stored in shade grown coffee (SC) and homegarden agroforestry practices (HG), and adjacent natural forest (NF) and annual crop field (CF) and to show the potential of agroforestry practices in soil organic carbon storage capacity. The study site was selected based on spatial analogue approach. From each land uses nine plots were selected by using systematic sampling method following the transect line. Soil organic carbon stock (100cm depth) were the highest for the NF(170.11 ± 14.59 Mg ha-1), followed by SC(127.96 ± 9.43 Mg ha-1), HG(107.62 ± 12.55 Mg ha-1) and CF(97.56 ± 6.85 Mg ha-1). Agroforestry and other land uses of Dallo Mena districts are providing various ecological as well as economical benefits for the community. It is used as income source, conserving different plant species diversity and at the same time storing large amounts of soil organic carbon. Therefore, there is significant difference among natural forest, shade grown coffee agroforestry practice, homegarden agroforestry practice and annual crop field in soil organic carbon storage capacity.International Journal of Environment
      Volume-6, Issue-3, Jun-Aug 2017, page: 1-14
      PubDate: 2017-08-24
      DOI: 10.3126/ije.v6i3.18094
      Issue No: Vol. 6, No. 3 (2017)
  • Occupational Health Hazards in Sanitary Workers of Chandrapur City,
           Central India

    • Authors: Priyanka V. Patil, R. K. Kamble
      Pages: 15 - 24
      Abstract: About 198 sanitary workers work in Chandrapur Municipal Corporation, out of which 20 workers (10% of the population) was selected as a sample size (all male workers). The study was carried out from November 2015 to January 2016. Occupational health hazards of these workers were analyzed through questionnaire survey and Peak Expiratory Flow Rate (PEFR) analysis. The results of the study showed that, these workers were exposed to a number of environmental and occupational hazards leading to musculoskeletal disorders (85%), exposure to harmful gases (65%), respiratory problems (45%), headache (40%), dermatological problem (35%), gastrointestinal (10%) and leptospirosis (10%) during work. It was further observed that the workers were suffering from cough and cold (90%), skin problems (50%), allergies (15%), malaria and typhoid (15%), bronchitis lung and asthmatic problems (10%) and hearing disorder (5%) etc. after completion of work. The PEFR values were lower in exposed workers. Reduction in PEFR values was directly proportional with exposure duration. To reduce occupational health hazards, workers must be made alert and aware of potential health risk arising from their work. Reduction in exposure and use of personal protective equipments such as face mask, gloves, gum boots, caps, apron etc. should be encouraged.International Journal of EnvironmentVolume-6, Issue-3, Jun-Aug 2017, page: 15-24
      PubDate: 2017-08-24
      DOI: 10.3126/ije.v6i3.18095
      Issue No: Vol. 6, No. 3 (2017)
  • Macroinvetebrate Assemblages as Indicators of Water Quality of the West
           Seti River, Bajhang, Nepal

    • Authors: Mohana Matangulu, Smriti Gurung, Meera Prajapati, Rabindra Jyakhwo
      Pages: 25 - 45
      Abstract: Water quality of the West Seti River, a tributary of the Karnali in West Nepal was assessed using macroinvertebrates as bioindicators. The main objective of the study was to assess the ecological water quality of the West Seti River and to generate a baseline data on macroinvertebrate assemblages. The sampling was conducted during December 2015 and a total of 11 sampling sites were selected from the West Seti River and its tributaries. Qualitative samples of macroinvertebrates were collected from different habitats. Selected physico-chemical parameters such as pH and temperature were estimated on-site. Dissolved oxygen (DO) was estimated by Winkler’s method. The macroinvertebrate samples were enumerated and identified up to Family level following standard literature. Chi-square test was performed to see whether macroinvertebrate taxa varied significantly along the altitudinal gradient and between the West Seti River and its tributaries. An ecological assessment tool Nepalese Biotic Score/ Average Score Per Taxon (NEPBIOS/ASPT) was applied to assess the water quality of the sampling sites. The pH value ranged from 7.9 to 8.7 indicating the alkaline nature of the river. A total of 1666 individuals belonging to 34 Families and 7 Orders of macro-invertebrates were observed. The highest diversity of the macroinvertebrate taxa was observed at site T5 with nineteen Families whereas the lowest taxa diversity was observed at R3 with only five Families. The variation in macroinvertebrate assemblages between the sub-tropical and temperate zones; and the West Seti River and its tributaries were not significant. NEPBIOS/ASPT revealed a score of Water Quality Class of III-IV at Site R3 indicating that the site was polluted. This site was characterized by the abundance of red Chironomids which are considered as the indicators of organic pollution.International Journal of EnvironmentVolume-6, Issue-3, Jun-Aug 2017, page: 25-45
      PubDate: 2017-08-24
      DOI: 10.3126/ije.v6i3.18096
      Issue No: Vol. 6, No. 3 (2017)
  • Soil Fertility Assessment and Mapping of Agricultural Research Station,
           Jaubari, Illam, Nepal

    • Authors: Dinesh Khadka, Sushil Lamichhane, Keshav Shrestha, Sushila Joshi, Manoj Karna, Buddhi B. Pant, Surendra Yadav
      Pages: 46 - 70
      Abstract: Soil fertility evaluation is a prerequisite factor for sustainable planning of a particular region. Considering this, a study was conducted to determine the soil fertility status of the Agricultural Research Station, Jaubari, Illam, Nepal. In total, 78 soil samples were collected using soil sampling auger randomly from a depth of 0-20 cm. The texture, pH, OM, N, P2O5, K2O, Ca, Mg, S, B, Fe, Zn, Cu and Mn status of the samples were analyzed in the laboratory of Soil Science Division, Khumaltar by following standard analytical methods. The soil fertility maps of the observed parameters were prepared through Arc-GIS 10.1 software. The observed data revealed that soil was brown (10YR 4/3), dark grayish brown (10YR 4/2), dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/6) in colour, and the structure was granular. Similarly, the sand, silt and clay content were 53.84±1.06%, 34.34±0.83% and 11.82±0.47%, respectively and were indicated as sandy loam and loam in texture. The soil was very acidic (pH 3.85±0.04), and very low in available boron (0.26±0.06mg/kg) and available sulphur (0.59±0.15mg/kg). The available calcium (188.7±31.30mg/kg), available magnesium (50.98±5.0mg/kg) and available manganese (5.16±0.90mg/kg) were low. Likewise, available potassium (110.91±7.30mg/kg), available zinc (1.19±0.31mg/kg) and available copper (0.95±0.05mg/kg) content were medium. Similarly, organic matter (7.88±0.32%), total nitrogen (0.27±0.01%) and available phosphorus (36.53±5.66mg/kg) were high, and available iron (39.5±2.17 mg/kg) was very high.  International Journal of EnvironmentVolume-6, Issue-3, Jun-Aug 2017, page: 46-70
      PubDate: 2017-08-24
      DOI: 10.3126/ije.v6i3.18097
      Issue No: Vol. 6, No. 3 (2017)
  • Monitoring Land Use Change and Vegetation Dynamics by Remote Sensing in
           the Steppe Region of Sidi Bel Abbes (Northwest, Algeria)

    • Authors: Wael El Zerey, Mamfoumby Gael, Asma EL Zerey-Belaskri
      Pages: 71 - 81
      Abstract: The application of remote sensing in land cover changes monitoring is a very efficient tool, for landscape management in arid regions. To assess the spatial-temporal dynamics, of egetation, in the southern region of Sidi Bel Abbes, for the period (2001- 2014), Landsat and MODIS NDVI data were processed and analysed using remote sensing software. The obtained results, confirm that the steppe region is highly degraded in the south and in the south-east, with light progression of vegetation noticed in the north and the north-west of the study area. The increase of vegetation cover is related to the reforestation actions, engaged by the forest services. For decision makers, the use of satellite imagery can improve the strategic conservation and management plans of the steppe ecosystem.International Journal of EnvironmentVolume-6, Issue-3, Jun-Aug 2017, Page:71-81
      PubDate: 2017-08-24
      DOI: 10.3126/ije.v6i3.18098
      Issue No: Vol. 6, No. 3 (2017)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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