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西藏阿里地区大、小昂龙冰川变化观测研究 被引量:3
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作者 陈艳辉 田立德 +3 位作者 宗继彪 朱大运 汪诚 靳胜强 《冰川冻土》 CSCD 北大核心 2021年第1期14-23,共10页
在西藏阿里地区狮泉河上游的大、小昂龙冰川开展了连续2年(2014—2016年)的冰川变化地面观测,主要包括冰川表面物质平衡与差分GPS高程变化同步观测,以及冰川表面流速观测,冰川末端观测和冰川雷达测厚。观测结果表明:大、小昂龙冰川表面... 在西藏阿里地区狮泉河上游的大、小昂龙冰川开展了连续2年(2014—2016年)的冰川变化地面观测,主要包括冰川表面物质平衡与差分GPS高程变化同步观测,以及冰川表面流速观测,冰川末端观测和冰川雷达测厚。观测结果表明:大、小昂龙冰川表面物质平衡与同期差分GPS观测结果之间存在差异。冰川表面物质平衡结果显示,2014—2016年间,大、小昂龙冰川分别以每年72mm w.e.和219mm w.e.的速率减薄。差分GPS观测结果显示,同期大、小昂龙冰川分别以每年(442±90)mm w.e.和(265±90)mm w.e.的速率减薄;在2015/2016年,大、小昂龙冰川表面平均流速分别为4.4m·a^(-1)和2.3m·a^(-1),其中大昂龙冰川表面平均流速较上一物质平衡年增加了10.5%;2014—2016年间,小昂龙冰川先是前进了11m,之后又退缩了34m,两年内平均每年退缩11.5m;大昂龙冰川平均冰厚为67.9m,实测最大厚度为216m,根据雷达测厚数据插值计算的冰川储量为0.452km3;小昂龙冰川实测最大厚度为190m。 展开更多
关键词 青藏高原 昂龙冰川 冰川变化 物质平衡 差分GPS
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Non-timber forest products and their contribution to healthcare and livelihood security among the Karbi tribe in Northeast India
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作者 Puranjoy Mipun Nazir Ahmad Bhat +1 位作者 Dipankar Borah Yogendra Kumar 《Ecological Processes》 SCIE EI 2019年第1期492-512,共21页
Introduction:Non-timber forest products(NTFPs)have been an essential source for food,medicine,and handicraft products among the indigenous populations living in forested areas for millennia.Scientific research on the ... Introduction:Non-timber forest products(NTFPs)have been an essential source for food,medicine,and handicraft products among the indigenous populations living in forested areas for millennia.Scientific research on the restoration of the importance of NTFPs and their value addition could potentially guide the development of new nutraceutical products in the future.The present study aims to investigate the diversity of non-timber forest products of the Karbi Anglong District of Assam in Northeast India.Methods:Multistage sampling technique was used for the study.A total of 70 respondents from 7 randomly selected villages were interviewed with a well-developed semi-structured questionnaire to explore the utilisation of NTFPs.Data analysis was done using four quantitative indices:(a)use report(UR),(b)use value(UV),(c)informant consensus factor(ICF),and(d)fidelity level(FL).Results:A total of 138 plant species belonging to 59 families distributed in 110 genera were recorded and identified as NTFPs of 1 type or the other.These include 42%having ethnomedicinal use,33%as edible forest products,15%as household building materials and utensils,6%as spices and condiments,and 4%as herbal dyes.Among the medicinal plant species,Abroma augustum(L.)L.f.,Amaranthus spinosus L,and Geophila repens(L.)I.M.Johnst.showed the highest ICF and FL.Conclusions:The present study confirms that NTFPs have played an essential role in the healthcare and livelihood of the indigenous people of the Karbi tribe throughout their generations and continue to do so.Also,the species with high value for both ICF and FL could be used for the development of new,cheap,effective,and eco-friendly herbal formulations for healthcare management leading to economic and social benefits to the indigenous tribe.However,anthropogenic pressure and overexploitation of NTFPs may lead to the loss of this precious natural resource from this area. 展开更多
关键词 East Karbi anglong ETHNOBOTANY Forest income NTFPS WILDLIFE SANCTUARY Quantitative study MEDICINAL plants
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