Journal of Hunan Institute of Science and Technology最新文献_第9页

ECOSYSTEM SERVICES IN THE MID-HILL FOREST OF WESTERN NEPAL: A CASE OF PANCHASE PROTECTED FOREST 尼泊尔西部中山森林的生态系统服务:以潘切斯保护区为例

Journal of Hunan Institute of Science and Technology Pub Date : 2018-12-30 DOI: 10.3126/JIST.V23I1.22146

Ananta Bhandari, U. Khadka, K. Kanel

{"title":"ECOSYSTEM SERVICES IN THE MID-HILL FOREST OF WESTERN NEPAL: A CASE OF PANCHASE PROTECTED FOREST","authors":"Ananta Bhandari, U. Khadka, K. Kanel","doi":"10.3126/JIST.V23I1.22146","DOIUrl":"https://doi.org/10.3126/JIST.V23I1.22146","url":null,"abstract":"This paper identified ecosystem services of Panchase Protected Forest (PPF) in the mid-hills of western Nepal using the Economics of Ecosystem and Biodiversity (TEEB) framework. Transect walk, focus group discussion, key informants interview and expert’s consultation were used. This study revealed that PPF offered wide range of ecosystem services including provisioning, regulating habitat, and cultural and amenity services. Provisioning services offered by PPF included food (35 species), raw materials (22 species), energy (17 species), medicines (40 species), ornamental resources (3 species) and water resources. The forest was also a source of water for irrigation and domestic consumption. The regulating services offered by PPF included water flow regulation, erosion prevention, water purification, soil fertility maintenance, air quality regulation and climate regulation. PPF provided habitat for 589 species of flowering plants, 24 species of mammals and 262 species of birds maintaining life cycles and genetic diversity. By maintaining landscape integrity and heritages, PPF provided opportunities for recreation and tourism. A total of 3,600 tourists and 25,340 pilgrims visit PPF every year. The beneficiary of ecosystem services from PPF ranged from local level to sub-national, national and global levels.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73891921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

FLOW OVER TIME PROBLEM WITH INFLOW-DEPENDENT TRANSIT TIMES 与流入相关的运输时间随时间流动问题

Journal of Hunan Institute of Science and Technology Pub Date : 2018-12-30 DOI: 10.3126/JIST.V23I1.22161

D. Khanal, Urmila Pyakurel, T. N. Dhamala

引用次数: 1

ECOLOGICAL NICHE MODELLING OF HIMALAYAN LANGUR (Semnopithecus entellus) IN SOUTHERN FLANK OF THE HIMALAYA 喜马拉雅南翼喜马拉雅叶猴生态位模拟

Journal of Hunan Institute of Science and Technology Pub Date : 2018-12-30 DOI: 10.3126/JIST.V23I1.22142

L. Khanal, M. Chalise, Xuelong Jiang

{"title":"ECOLOGICAL NICHE MODELLING OF HIMALAYAN LANGUR (Semnopithecus entellus) IN SOUTHERN FLANK OF THE HIMALAYA","authors":"L. Khanal, M. Chalise, Xuelong Jiang","doi":"10.3126/JIST.V23I1.22142","DOIUrl":"https://doi.org/10.3126/JIST.V23I1.22142","url":null,"abstract":" The species and subspecies status of various populations of the Himalayan langur (Semnopithecus entellus) have been disputed in many literatures. Before delineating the taxonomic boundaries, it is important to identify the potential distribution areas of extant populations of the species. Ecological niche modeling (ENM) can be coupled with the systematic survey of species presence to identify the species’ potential distribution range. Therefore, we did extensive survey and population census of the Himalayan langur across three major river basins (Koshi, Gandaki and Karnali) of Nepal and analyzed the population patterns. In addition, we also modelled the ecological niche of the species by using maximum entropy (MaxEnt) algorithm. We counted a total of 559 individuals from 33 troops that accounted the average troop size of 16.94 (±8.39) individuals. Within Nepal territory, the highest population of langurs was observed from the Gandaki River basin followed by the Karnali River basin. We revealed that Himalayan langurs have a wide range of altitudinal (49 m - 4190 m above sea level) distributions from Bhutan to Kashmir across southern flank of the Himalaya. We warrant for the detail distribution assessment and taxonomic analysis of Himalayan langurs using ecological, morphological and genetic variables.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"331 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75076333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

FLUID ANALYSIS OF MAGNETIZED PLASMA SHEATH IN A CYLINDRICAL GEOMETRY 圆柱形磁化等离子体鞘层的流体分析

Journal of Hunan Institute of Science and Technology Pub Date : 2018-12-30 DOI: 10.3126/JIST.V23I1.22157

P. K. Thakur, R. Pokhrel, R. Khanal

引用次数: 3

PHYTOCHEMICAL ANALYSIS AND CONSTITUENTS OF HEXANE EXTRACT OF MELASTOMA MALABATHRICUM L 黑草瘤正己烷提取物的植物化学分析及成分分析

Journal of Hunan Institute of Science and Technology Pub Date : 2018-12-30 DOI: 10.3126/JIST.V23I1.22150

D. Giri, M. Rajbhandari

{"title":"PHYTOCHEMICAL ANALYSIS AND CONSTITUENTS OF HEXANE EXTRACT OF MELASTOMA MALABATHRICUM L","authors":"D. Giri, M. Rajbhandari","doi":"10.3126/JIST.V23I1.22150","DOIUrl":"https://doi.org/10.3126/JIST.V23I1.22150","url":null,"abstract":" Hexane, dichloromethane, ethyl acetate, methanol and 50 % aqueous methanol extracts of leaf, flower and fruit of Melastoma malabathricum were screened for the presence of different classes of phytochemicals. In phytochemical screening, ethyl acetate, methanol and 50 % aqueous methanol extracts showed the presence of phenolics and flavonoids. Glycosides were found only in the 50 % methanol extract of fruit. Free radical scavenging activity of methanol extract of leaf, flower and fruit was determined using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) free radical. Total phenolic content was measured spectrophotometrically using Folin-Ciocalteu, total flavonoids content by using aluminum chloride and total sugar content by using anthrone reagent. Gallic acid was used as a standard for the calibration of phenolics, catechin for flavonoids and glucose for carbohydrates. The highest amount of phenolic was found in the 50 % methanol extract of leaf (242.88 ± 3.52 mg GAE/g extract), the highest amount of flavonoids was found in the ethyl acetate extract of leaf (127.41 ± 6.33 mg CE/g extract). Total sugar in 50 % methanol extract of fruit was found to be 151.12 ± 8.79 mg GE/g extract. Methanol extracts of flower showed the strongest antioxidant activity with IC50 value of 17.23 μg/ml. Silyl derivative of hexane extracts were prepared by using N-methyl-N-(trimetylsilyl) trifluoroacetamide for gas chromatography-mass spectroscopic (GC-MS) analysis. The GC-MS analysis of hexane extract allowed the identification of 17 phyto-constituents by comparing the fragmentation pattern of each component in mass spectrum with the standard NIST mass spectral database.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74664106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

HUMAN-WILD MAMMAL CONFLICT IN A HUMAN DOMINATED MIDHILL LANDSCAPE: A CASE STUDY FROM PANCHASE AREA IN CHITWAN ANNAPURNA LANDSCAPE, NEPAL 人类主导的中山景观中人类与野生哺乳动物的冲突:以尼泊尔奇旺安纳普尔纳地区潘切斯地区为例

Journal of Hunan Institute of Science and Technology Pub Date : 2018-12-30 DOI: 10.3126/JIST.V23I1.22158

J. Adhikari, B. Bhattarai, T. Thapa

{"title":"HUMAN-WILD MAMMAL CONFLICT IN A HUMAN DOMINATED MIDHILL LANDSCAPE: A CASE STUDY FROM PANCHASE AREA IN CHITWAN ANNAPURNA LANDSCAPE, NEPAL","authors":"J. Adhikari, B. Bhattarai, T. Thapa","doi":"10.3126/JIST.V23I1.22158","DOIUrl":"https://doi.org/10.3126/JIST.V23I1.22158","url":null,"abstract":" \u0000 Issues of human wildlife conflict (HWC) always challenges in conservation and management. Crop raiding, property damage, livestock depredation and human casualties are the most common forms of conflict. It was investigated the issues of human wild mammal conflict in and around the Panchase area in Chitwan Annapurna Landscape of Nepal from March 2017 to April 2018 using semi-structured questionnaires and focal group discussion. Wide spread human wildlife conflict was observed in Panchase area. Monkey, muntjac deer, porcupine and rabbit were the main crop raider that resulted in total economic loss of US$ 29.56 per household (HH). Overall economic loss by livestock depredation was estimated US$ 11254.54 (US$ 112.54/HH). Leopard contributed to the highest cases of livestock depredation. A total of five human attack cases were recorded including one fatal and four injuries. Himalayan black bear contributed to 80 % of the total attacks and 20 % by leopards. Present study focused on the issues and status of conflicts in the Panchase area, a representative of midhills and Chitwan Annapurana Landscape. This study suggests that future study related to mitigation and preventing methods should be conducted to minimize the issues of human wildlife conflicts.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91038218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Assessment of The Impacts of Trout Farming on Water Quality Using Macro Invertebrates as Bio- Indicators 以大型无脊椎动物为生物指标评价鳟鱼养殖对水质的影响

Journal of Hunan Institute of Science and Technology Pub Date : 2018-04-09 DOI: 10.3126/JIST.V22I2.19610

A. Rai, Archana Niraula, P. Ghimire, A. Pandey, Anup Gurung, Chhatra Mani Sharma, S. Gurung

{"title":"Assessment of The Impacts of Trout Farming on Water Quality Using Macro Invertebrates as Bio- Indicators","authors":"A. Rai, Archana Niraula, P. Ghimire, A. Pandey, Anup Gurung, Chhatra Mani Sharma, S. Gurung","doi":"10.3126/JIST.V22I2.19610","DOIUrl":"https://doi.org/10.3126/JIST.V22I2.19610","url":null,"abstract":"The study was conducted to assess the impacts of trout farming on water quality using macro invertebrates as bio-indicators. Two trout farms were selected for the study, viz., Gandaki Trout Farm (GTF) in Kaski district and Fall & Trout Fish Farm (FTF) in Nuwakot district. Reference and impacted sites were selected in each trout farms from where macro invertebrates were collected and physico-chemical parameters were measured. Sorensen’s Index and Multiple Site Similarity Index were calculated to compare the macro-invertebrate assemblages between the impact and the reference sites. Water quality classes were also calculated using macro invertebrate-based tool, NEPBIOS/ASPT scores. Altogether 24 families of macro invertebrates were observed at GTF and 12 families at FTF. The Sorensen’s Similarity Index was greater than 0.5 between reference and impacted sites at GTF; whereas it was only 0.28 at FTF indicating comparatively low level of similarity. In addition, Multiple Site Similarity Index (0.64) at GTF also indicated high similarity between the macro invertebrate assemblages. Reference sites showed higher scores with higher diversity of macro invertebrates. Both farms had suitable water quality for trout (dissolved oxygen and temperature) and most of the physico-chemical parameters did not show significant differences except pH and turbidity at GTF probably due to small scale operation and production. Journal of Institute of Science and TechnologyVolume 22, Issue 2, January 2018, Page: 175-182","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"458 1","pages":"175-182"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86731667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0