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《Chinese Science Bulletin》 2015-01
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Ranwu Lake, a proglacial lake with the potential to reflect glacial activity in SE Tibet

JU JianTing;ZHU LiPing;HUANG Lei;YANG RuiMin;MA QingFeng;HU Xing;WANG YongJie;ZHEN XiaoLin;Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences;  
Vast lakes and glaciers are distributed across the Tibetan Plateau. However, the study of the response of lake water quality and sediment to glacier variation is relatively deficient. Ranwu Lake is the second largest lake in the outflow areain SE Tibet. This paper monitored the degree of response of the lake to glaciers. Glacier melt influenced the lake directly, which is illustrated by the fact that the Quchi River, the largest inflow and a glacier melt river, dominates many aspects of the lake, including the water level, seasonal and spatial water temperature, conductivity, p H, and even chlorophyll a content. Depositional flux analysis measured by sediment traps showed that the fluxes decrease from the upper to the lower lake with a greater flux in the summer than during other seasons, reflecting the dominant influence of Quchi River on the lake. To conclude, the waters and sediment of Ranwu Lake clearly respond to the glacier variation. The sediment in Ranwu Lake has great potential to reflect variations in the nearby glaciers with high temporal resolution.
【Fund】: 国家自然科学基金重大项目(41190082)、国家自然科学基金重点项目(41130529);; 国家重大科学研究计划(2012CB956100);; 中国科学院知识创新工程重要方向项目(KZCX2-EW-113);; 中国博士后基金(2012M520401)资助
【CateGory Index】: P343
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