Banko janakari最新文献_第3页

Acute cold stress: a potential threat to Royle's pika (Ochotona roylii) survival at Central Himalayas of Nepal 急性冷应激:尼泊尔喜马拉雅山脉中部鼠兔生存的潜在威胁

Banko janakari Pub Date : 2021-05-30 DOI: 10.3126/BANKO.V31I1.37343

N. Koju, M. Chalise, R. Kyes

引用次数: 2

Assessment of invasion of Ageratina adenophora in the plantation forest of Nepal 紫茎泽兰对尼泊尔人工林入侵的评估

Banko janakari Pub Date : 2021-05-30 DOI: 10.3126/BANKO.V31I1.37337

R. Malla, R. Aryal, S. Ranabhat

{"title":"Assessment of invasion of Ageratina adenophora in the plantation forest of Nepal","authors":"R. Malla, R. Aryal, S. Ranabhat","doi":"10.3126/BANKO.V31I1.37337","DOIUrl":"https://doi.org/10.3126/BANKO.V31I1.37337","url":null,"abstract":"1 Forest Research and Training Centre, Pokhara, Gandaki Province, Nepal. *Email: raj_malla@yahoo.com 2 Forest Research and Training Centre, Kathmandu, Nepal 3 International Centre for Integrated Mountain Development, Lalitpur, Nepal Large-scale plantations of pine species were done in the bare hills of the Middle Mountain region of Nepal during the early 1980s. There is a growing concern on the sustainability of the planted pine forests in the country due to the presence of invasive alien plant species (IAPS). Invasive alien plant species are considered as one of the drivers of forest degradation and deforestation. Ageratina adenophora is one of the problematic IAPS found in the planted pine forests throughout the country. In this study, we employed different treatments to control the invasion of A. adenophora in the planted pine (Pinus patula) forest. The research design included four different treatments, viz., (i) control, (ii) stem felling, (iii) floor clearance, and (iv) stem felling cum floor clearance in one block (Block I), which was replicated in another block (Block II). The data were collected using circular sample plots with 2m radius. The ANOVA and TukeyHSD Tests were applied during the analysis process so as to determine the effects of treatments on invasion of A. adenophora. The \"floor clearance treatment\" was found to be significantly effective to reduce the presence of A. adenophora in the planted pine forest. On the contrary, the \"opening of forest cover treatment\" was found to be conducive to this invasive species to invade the area. The \"stem felling cum floor clearance treatment\" could be an effective strategy to control invasion of A. adenophora in planted forest, but as it demands a high cost, it is likely to be appropriate for small forest areas where promotion of regeneration is of high priority.","PeriodicalId":89659,"journal":{"name":"Banko janakari","volume":"31 1","pages":"3-11"},"PeriodicalIF":0.0,"publicationDate":"2021-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47112315","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

Water balance component analysis of a spring catchment of western Nepal 尼泊尔西部一个泉水集水区的水平衡成分分析

Banko janakari Pub Date : 2021-05-30 DOI: 10.3126/BANKO.V31I1.37341

J. K.C., S. Dhaubanjar, V. Pandey, R. Subedi

引用次数: 1

Banko Janakari: status and way forward 日本银行：现状和前进道路

Banko janakari Pub Date : 2021-05-30 DOI: 10.3126/BANKO.V31I1.37312

K. Pokharel

引用次数: 1

Impact of training on different observers in forest inventory 培训对森林清查中不同观察员的影响

Banko janakari Pub Date : 2021-05-30 DOI: 10.3126/BANKO.V31I1.37338

P. Paudel, P. Beckschäfer, C. Kleinn

{"title":"Impact of training on different observers in forest inventory","authors":"P. Paudel, P. Beckschäfer, C. Kleinn","doi":"10.3126/BANKO.V31I1.37338","DOIUrl":"https://doi.org/10.3126/BANKO.V31I1.37338","url":null,"abstract":"Observers with different experience levels are involved in the measurement of large number of sample plots during forest inventories, particularly in national forest inventories. However, limited information exist on the quality of data produced by different observers in forest inventory after certain levels of training. This study tries to evaluate the measurement error in forest inventory associated with observers' experience after initial and field-based training for measuring the most fundamental variables- DBH (cm), total tree height (m), and horizontal distance (m) together with bearing (azimuth) to tree from the plot-centre. On completing the second level of training, the mean of the differences in DBH measurement decreased for both the ‘experienced’ and ‘inexperienced’ groups. The mean of the differences in height measurement in the case of the experienced observers was very low as compared to the inexperienced ones. However, the mean of the differences in azimuth measurement showed that the experienced groups were overestimating by at least 1 degree. There was no trend in deviation of measurement for all four variables regardless of tree size. The decrease in the mean and error of differences in measurements after second training showed that field-based training with supervision and training on the use of instruments at laboratories were required for inexperienced surveyors whereas update in working and measurement procedure would be sufficient for the experienced ones.","PeriodicalId":89659,"journal":{"name":"Banko janakari","volume":"31 1","pages":"12-22"},"PeriodicalIF":0.0,"publicationDate":"2021-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48835376","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

Ecological assessment and restoration 生态评估和恢复

Banko janakari Pub Date : 2020-12-17 DOI: 10.3126/banko.v30i2.33474

K. Goutam

引用次数: 1

Economic interpretation of lost due to improper stump-height of trees in Nepal 尼泊尔因树木树桩高度不合适而造成的损失的经济解释

Banko janakari Pub Date : 2020-12-17 DOI: 10.3126/banko.v30i2.33475

T. Subedi, M. Ghimire

引用次数: 0

Merchantable wood volume response of P. radiate D. Don post thinned plots on coated and uncoated urea fertilizers 施包覆和未包覆尿素肥后疏地辐射白杨的可售木材体积响应

Banko janakari Pub Date : 2020-12-17 DOI: 10.3126/banko.v30i2.33477

R. Nirola, C. Saint, J. Hehir, J. Liu

{"title":"Merchantable wood volume response of P. radiate D. Don post thinned plots on coated and uncoated urea fertilizers","authors":"R. Nirola, C. Saint, J. Hehir, J. Liu","doi":"10.3126/banko.v30i2.33477","DOIUrl":"https://doi.org/10.3126/banko.v30i2.33477","url":null,"abstract":"The basal area increment in silviculture is impacted by early growth achieved due to appropriate plantation, thinning and nutrition (Moulinier et al., 2015). In this regard, we had considered to conduct our study on radiata pine (Pinus radiata D. Don). The P. radiata D. Donrotation lasts for up to 40 years, and are thinned 3 to 5 times typically in South Australia (Jeong, 2017). A general policy of Forestry in South Australia has been to apply fertilizer one to two years after thinning so as to improve the productivity of P. radiata D. Don (Woollons, 1985, Gavran & Parsons, 2011). The current study Site 'A' at Mount Gambier is a part of the ‘Green Triangle’ that has P. radiata D. Don plantations (O' Hehir & Nambiar, 2010). The overall aim was to test the two types of coated and slow release forms of DAP Urea fertiliser against the standard DAP Urea fertiliser used by Forestry SA for their impact on growth as a post thinning fertilizer application. The measurement of impact of fertilizer was done on the basis of merchantable wood volume produced on each plot treated with a particular fertilizer. Certain coated fertilizers are recently available in the market, but their effectiveness in the local climatic range is yet to be ascertained, and the present analysis is expected to answer it to some extent. Merchantable wood volume response of P. radiata D. Don post thinned plots on coated and uncoated urea fertilizers","PeriodicalId":89659,"journal":{"name":"Banko janakari","volume":"30 1","pages":"36-47"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42354795","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

Impact of invasive alien plant species on aquatic biodiversity of Koshi Tappu Wetlands : Ramsar Site, Nepal 外来入侵植物物种对Koshi Tappu湿地水生生物多样性的影响：尼泊尔拉姆萨尔湿地

Banko janakari Pub Date : 2020-12-17 DOI: 10.3126/banko.v30i2.33478

Banko Janakari, D. Shah, R. Tachamo-Shah

引用次数: 2

Ethnobotanical survey on plants used in Mai Municipality of Ilam district, eastern Nepal 尼泊尔东部伊拉姆区迈市植物的民族植物学调查

Banko janakari Pub Date : 2020-12-17 DOI: 10.3126/banko.v30i2.33476

K. R. Bhattarai

引用次数: 10