Forestry: Journal of Institute of Forestry, Nepal最新文献_第2页

Regeneration Status and Diversity under Irregular Shelterwood System: A Study from Panchkanya Community Forest, Sunsari, Nepal 不规则林分系统下的更新状况与多样性——以尼泊尔Sunsari Panchkanya群落林为例

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2021-12-31 DOI: 10.3126/forestry.v18i01.41751

Ripesh Kharel, K. Acharya, Aayush Gautam

{"title":"Regeneration Status and Diversity under Irregular Shelterwood System: A Study from Panchkanya Community Forest, Sunsari, Nepal","authors":"Ripesh Kharel, K. Acharya, Aayush Gautam","doi":"10.3126/forestry.v18i01.41751","DOIUrl":"https://doi.org/10.3126/forestry.v18i01.41751","url":null,"abstract":"The present study is the outcome of vegetation sampling conducted in the managed and unmanaged forest patch under the irregular shelterwood system to analyze community structure and plant diversity in a degraded mixed forest in eastern Terai, Nepal. Systematic random sampling was followed by laying out 15 quadrates sized 4m2 with uniform spacing of 50 meters in both managed and unmanaged blocks, respectively. This study revealed that the first and second-year regeneration felling subsisted the Shorea robusta in the managed forest patch. There was observed a remarkable increase in regeneration but a decrease in plant diversity in the managed area in comparison to the unmanaged one. Simpson’s index of diversity was 0.760 and 0.890 and Shannon-Wiener indexes were 1.82 and 2.43 in managed and unmanaged forest blocks, respectively. Independent sample t-test showed a significant difference in the total number of regenerations between managed and unmanaged forest blocks since P-value <0.05 (P=0.0166) i.e., managed blocks with opened canopy had higher regeneration but a lower diversity. This study concludes that the irregular shelterwood system is deemed pivotal for increased regeneration of Shorea robusta particularly in the eastern lowland of Nepal.","PeriodicalId":398617,"journal":{"name":"Forestry: Journal of Institute of Forestry, Nepal","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126855641","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: 2

Pitfalls of Scientific Forestry Practices in the Community Forestry of Nepal 尼泊尔社区林业科学林业实践的陷阱

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2021-12-31 DOI: 10.3126/forestry.v18i01.41749

B. Basnyat

{"title":"Pitfalls of Scientific Forestry Practices in the Community Forestry of Nepal","authors":"B. Basnyat","doi":"10.3126/forestry.v18i01.41749","DOIUrl":"https://doi.org/10.3126/forestry.v18i01.41749","url":null,"abstract":"The government of Nepal abolished scientific forest management in 2021, however, the underlying reason remained unexplored. Hence, this study explores reasons that pushed on abolishment of this practice in the community forestry. The study followed the qualitative methods and reviewed the policy documents, published and unpublished literature followed by semi-structured interviews with forest officials and community forestry leaders. Though scientific forest management was promoted to maximize timber production and employment generation, stakeholders often raised concern over the exploitation of forests, including the appropriateness of the proposed silviculture system along with the governance issues related to it. On the contrary, forest bureaucracy promoted this as an “one size fit approach” irrespective of management objectives while poorly integrating locality factors, and research-generated knowledge. Apparently, scientific forest management is highly contested on technical and managerial grounds, while it is utterly uneconomical to forest user groups. Diverse views, interests and disbelief of the stakeholders, along with inadequate scientific evidence is primary reasons for a failure. Hence, the study argues for promoting “research in use approach” in strengthening forest management practices with the wider engagement of the stakeholders from knowledge generation, use, and dissemination in the community forestry.","PeriodicalId":398617,"journal":{"name":"Forestry: Journal of Institute of Forestry, Nepal","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116588665","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: 1

Checklist of floral species at the Institute of Forestry, Pokhara Campus, Pokhara, Nepal 尼泊尔博克拉博克拉校区林业研究所花卉物种清单

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2021-12-31 DOI: 10.3126/forestry.v18i01.41809

M. S. Miya, D. Gautam

引用次数: 0

COVID-19 Crises and Higher Education in Nepal 2019冠状病毒病危机与尼泊尔高等教育

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2020-12-23 DOI: 10.3126/forestry.v17i0.33618

E. Board

引用次数: 0

Avifaunal Diversity of Institute of Forestry Complex, Hetauda Metropolis, Nepal 尼泊尔Hetauda大都会林业综合研究所鸟类多样性

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2020-12-23 DOI: 10.3126/forestry.v17i0.33624

Santosh Bajagain, S. Pokhrel, S. Baniya, Aavas Pradhan, Surakchya Paudel, Ishwar Joshi

引用次数: 2

Devastating Monsoon: Water Induced Disaster Management Practices in Nepal 破坏性季风:尼泊尔水资源灾害管理实践

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2018-07-31 DOI: 10.3126/FORESTRY.V15I0.24921

K. R. Tiwari, S. Rayamajhi

{"title":"Devastating Monsoon: Water Induced Disaster Management Practices in Nepal","authors":"K. R. Tiwari, S. Rayamajhi","doi":"10.3126/FORESTRY.V15I0.24921","DOIUrl":"https://doi.org/10.3126/FORESTRY.V15I0.24921","url":null,"abstract":"Nepal is prone to a variety of recurring natural disasters such as floods, landslides, snow avalanches, thunderstorms, drought, earth quake and epidemics. In particular, floods, landslides, hailstorms and drought are almost regular phenomena. This paper has focused mainly on water induced disaster (Monsoon) prepared through review of documents, consultation with related line agencies and field level interaction with affected communities. The paper also seeks to explore and document the major disasters and their impacts in Nepal. It discusses policy and program, institutional arrangement and activities related to the disaster management as well as identification of gaps in the policy and program. Nepal has attempted to manage the prevalence of these hazards and their associated disasters through both informal civic involvement and formal government instruments. A legal and policy environment to deal with disasters has existed in one or the other form in Nepal since 1982, and these have been reviewed. Study showed that disaster management activities only found initial response rather post disaster program. However, findings of the previous and present programs and activities on disaster management have not addressed effectively to the vulnerable people and to reduce the impact from disasters at the local level. It is suggested that disaster management policy and program should be integrated and mainstreamed in development agenda.","PeriodicalId":398617,"journal":{"name":"Forestry: Journal of Institute of Forestry, Nepal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130748686","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: 8

Effect of Water Stress in Soil Nitrogen Dynamics under Intercropping System with Maize and Sorghum 水分胁迫对玉米高粱间作土壤氮动态的影响

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2018-07-31 DOI: 10.3126/FORESTRY.V15I0.24916

A. Sharif, U. Thapa

{"title":"Effect of Water Stress in Soil Nitrogen Dynamics under Intercropping System with Maize and Sorghum","authors":"A. Sharif, U. Thapa","doi":"10.3126/FORESTRY.V15I0.24916","DOIUrl":"https://doi.org/10.3126/FORESTRY.V15I0.24916","url":null,"abstract":"Global warming, one of the most persistent threats to nature, is expected to result in severe droughts in many parts of the world. Droughts are supposed to effect individual plants and/or plant communities by changing their a/ biotic interactions. The objective of this study was to elucidate drought effects on soil nitrogen allocation in different aggregate sizes. This was done by growing Zea mays and Sorghum bicolor in monoculture and mixture. Nitrogen allocation under drought stress was traced using nitrogen stable isotope 15N. Drought disintegrated soil aggregates into finer aggregates for sorghum monoculture and decreased the aggregate proportion in small macro-aggregate fraction for maize monoculture. For plant mixture, drought increased total nitrogen content in micro-aggregate fraction and uptake of added 15N in bulk soil. Hence, the study showed that mix planting maize and sorghum offer better resistance against changes in plant biomass and nitrogen content which suggests its effectiveness in nitrogen conservation during water stress. Moreover, intergrowing maize and sorghum under agroforestry systems also produce advantageous results.","PeriodicalId":398617,"journal":{"name":"Forestry: Journal of Institute of Forestry, Nepal","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114658221","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

Landslide Susceptibility Zonation Mapping in Post- Earthquake Scenario in Gorkha District 廓尔喀地区震后滑坡易感性区划制图

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2018-07-31 DOI: 10.3126/forestry.v15i0.24920

H. L. Shrestha, M. Poudel

{"title":"Landslide Susceptibility Zonation Mapping in Post- Earthquake Scenario in Gorkha District","authors":"H. L. Shrestha, M. Poudel","doi":"10.3126/forestry.v15i0.24920","DOIUrl":"https://doi.org/10.3126/forestry.v15i0.24920","url":null,"abstract":"Landslide hazard zonation map is prepared to assist planners to implement mitigation measures so that further damage and loss can be minimized. In this study, post 25 April 2015 earthquake remote sensing data were used to prepare landslide inventory. Landsat images after the earthquake were downloaded from the National Aeronautics and Space Administration (NASA) website and processed using ArcGIS, ERDAS imagine and Analytical Hierarchy Process (AHP) as an extension in ArcGIS. The study was carried out in Gorkha district as this was the epicenter of the main earthquake of 25 April 2015 and consequently was highly affected by earthquake triggered landslide. The digital imagery was processed to analyze land use/land cover type. Geological features were analyzed using the criteria like color, tone, topography, stream drainage, etc. Primary topographic features like slope, aspect, elevation, etc. were generated from Digital Elevation Model (DEM). Seismological data (magnitude and epicenter) were obtained from Department of Seismology. For Landslide Susceptibility Zonation (LSZ) different thematic maps like Land Use and Land Cover (LULC) map, slope map, aspect map, lithological map, buffer map (distance from road and river/water source), soil map, and seismological map were assigned relative weights on the ordinal scale to obtain Landslide Susceptibility Index (LSI). Threshold values were selected according to breaks in LSI frequency and a LSZ map was prepared which shows very low, low, moderate, high, very high hazard zones in Gorkha district.","PeriodicalId":398617,"journal":{"name":"Forestry: Journal of Institute of Forestry, Nepal","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127018803","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: 1

Upstream-downstream Connectivity: An Overview of Hydrological and Ecological Functions in relation to the Churia-Terai Conservation in Nepal 上游-下游连通性:尼泊尔Churia-Terai保护区水文与生态功能综述

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2018-07-31 DOI: 10.3126/FORESTRY.V15I0.24924

S. Paudel, R. Basnet

{"title":"Upstream-downstream Connectivity: An Overview of Hydrological and Ecological Functions in relation to the Churia-Terai Conservation in Nepal","authors":"S. Paudel, R. Basnet","doi":"10.3126/FORESTRY.V15I0.24924","DOIUrl":"https://doi.org/10.3126/FORESTRY.V15I0.24924","url":null,"abstract":"The Churia-Terai (CT) is interlinked by the Churia range, Bhabar and Terai, where Terai exist as granary basket of the country and the Churia and Bhabar is the recharge zone of Terai. Changing environment of the Churia range has directly affected the condition of upstream and downstream. To recommend the appropriate watershed management linking upstream and downstream on this landscape, functional analysis were carried out using ecological and hydrological parameters based on secondary literatures. For the proper management of the watershed and its alarming cause of deterioration, understanding upstream and downstream linkages or process is must. Deforestation leads to climate change (temperature and precipitation) and watershed deterioration, which has become the aggravating factor for landslide and soil erosion in upstream and flood in the downstream. The paper highly stressed development of conceptual framework with clear functional activities based on integrated watershed management approach linking the upstream-downstream hydro-ecological phenomena. Thus the paper recommends integrated watershed management with a clear policy which helps to focus priorities and manages its bio-physical condition in a sustainable basis.","PeriodicalId":398617,"journal":{"name":"Forestry: Journal of Institute of Forestry, Nepal","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122656916","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: 2

Effects of Predicted Reduced Summer Rainfall on Growth and Development of Silver Birch (Betula Pendula Roth) and Downy Birch (Betula pubescens Ehrh) 预测夏季降水减少对白桦(Betula Pendula Roth)和毛桦(Betula pubescens ehh)生长发育的影响

Forestry: Journal of Institute of Forestry, Nepal Pub Date : 2018-07-31 DOI: 10.3126/FORESTRY.V15I0.24919

D. Pradhan, C. Cahalan, S. Ulak

{"title":"Effects of Predicted Reduced Summer Rainfall on Growth and Development of Silver Birch (Betula Pendula Roth) and Downy Birch (Betula pubescens Ehrh)","authors":"D. Pradhan, C. Cahalan, S. Ulak","doi":"10.3126/FORESTRY.V15I0.24919","DOIUrl":"https://doi.org/10.3126/FORESTRY.V15I0.24919","url":null,"abstract":"Climate is one of the major factors that govern the distribution of tree species. Climate change has already affected the growth, structure and distribution of trees and woodlands. Global climate change projections are wetter winters, drier summers and significance changes in temperature regimes in the next few decades. The main objective of this study was to experimentally demonstrate the effects of decline in summer rainfall, as predicted by UKCP09/IPCC, on height and diameter growth in two co-occurring silver birch (Betula pendula Roth) and downy birch (Betula pubescens Ehrh) and provide further understanding of the changes in growth and development in response to a decrease in water availability. One-year-old seedlings were grown in a temperature-controlled greenhouse for eight weeks in a split-plot experimental design. Their height and diameter were measured and analyzed. Result showed that plant height and diameter was significantly reduced with increased water stress. B. pendula showed higher physiological traits indicating that this species can perform better than B. pubescensin water-deficit conditions.","PeriodicalId":398617,"journal":{"name":"Forestry: Journal of Institute of Forestry, Nepal","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115376939","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: 1