Changes in glaciallakes and glaciers of post-1986 in the Poiqu River basin,Nyalam,Xizang(Tibet)
文献类型：期刊论文
| 作者 | Xiaoqing Chen ; Yong Li; Peng Cui
|
| 刊名 | Geomorphology
 |
| 出版日期 | 2006 |
| 卷号 | 88期号:3-4页码:298-311 |
| 关键词 | Poiqu River |
| 通讯作者 | Xiaoqing Chen |
| 合作状况 | 其它 |
| 英文摘要 | Glacial lakes and glaciers are sensitive indicators of recent climate change. In the Poiqu River basin of southern Tibet, 60–100 km NW of Mt. Everest, Landsat imagery defines post-1986 changes in the size and distribution of both glacial lakes and glaciers. Total area of glaciers in the 229-km2 drainage area has decreased by 20%. The number of glacial lakes with areas in excess of 0.020 km2 has increased by 11%, and the total area of glacial lakes has increased by 47%. The areas of typical large glacial lakes of the area (Galongco, Gangxico, and Cirenmaco) have increased by 104, 118, and 156%, respectively, and these increases are confirmed by field investigations. Comparing the 1986 data, the area of glaciers in the basin headwaters has decreased by 46.18 km2 to a present total area of 183.12 km2, an annual rate of change of 3.30 km2/year. Trends indicate that the total area of glaciers will continue to decrease and that both the numbers and areas of glacial lakes will continue to increase. Accompanying these trends will be an increased risk of debris flows, formed by entrainment of sediment in glacial-outburst floods and in surges from both failure and avalanche- and landslide-induced overtopping of moraine dams. Based on both the local and world-wide history of catastrophes from flows of these origins, disaster mitigation must be planned and appropriate engineering countermeasures put in place as soon as possible. |
| 语种 | 英语 |
| 公开日期 | 2010-11-18 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2569]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 推荐引用方式 GB/T 7714 | Xiaoqing Chen,Yong Li,Peng Cui. Changes in glaciallakes and glaciers of post-1986 in the Poiqu River basin,Nyalam,Xizang(Tibet)[J]. Geomorphology,2006,88(3-4):298-311. |
| APA | Xiaoqing Chen,Yong Li,&Peng Cui.(2006).Changes in glaciallakes and glaciers of post-1986 in the Poiqu River basin,Nyalam,Xizang(Tibet).Geomorphology,88(3-4),298-311. |
| MLA | Xiaoqing Chen,et al."Changes in glaciallakes and glaciers of post-1986 in the Poiqu River basin,Nyalam,Xizang(Tibet)".Geomorphology 88.3-4(2006):298-311. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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