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Analysis of distribution character and background of geological hazards in western Qinghai-Tibet Plateau |
LIU GANG, YAN Yunpeng, LIU Jianyu |
China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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Abstract The rapid uplift of the Qinghai-Tibet Plateau cause drastic changes in geology, and form and climate, then the geological hazards such as dilapidation,landslide,mudflow,debris flow and dam breaking of glacier lakes happen frequently. The distribution and forming conditions of geological hazards in western Qinghai-Tibet Plateau were studied by remote sensing, and the hazards evolution background was researched. The dilapidation,landslide and mudflow mainly develop in the canyons of Himalayas mountains,Kailas Range mountains,Qaraqurum mountains and Kunlun mountains. The glacier lakes are usually distributed around the snow line. The debris flow is distributed in steep slope areas under the snow line where the rocks are exposed. Thaw-freezes solifluction is distributed in the area between permafrost and seasonal frozen ground where the altitude is lower than that of the debris flow. The orogenic belt in plateau provide landform conditions, the glaciers and precipitation provide water source, and the glacial action and frequent thaw-freeze action provide a mass of materials for the geologic hazards. The rapid uplift of the Qinghai-Tibet Plateau is the intrinsic factor of the geological hazards, and the high-altitude and extremely cold climate are the extrinsic factors.
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Received: 10 March 2017
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[1] 王治华.数字滑坡技术及其典型应用[J].中国地质调查,2016,3(3):47-54. [2] 孟晖,张岳桥,杨农.青藏高原东缘中段地质灾害空间分布特征分析[J].中国地质,2004,31(2):218-224. [3] 徐道明,冯清华.冰川泥石流与冰湖溃决灾害研究[J].冰川冻土,1988,10(3):284-289. [4] 崔鹏,马东涛,陈宁生,等.冰湖溃决泥石流的形成、演化与减灾对策[J].第四纪研究,2003,26(6):621-628. [5] 刘晶晶,程尊兰,李泳,等.西藏冰湖溃决主要特征[J].灾害学,2008,23(1):55-60. [6] 王杰,张涛,叶定阳,等.青藏高原东缘典型冰川融雪型泥石流灾害特征分析——以甘孜理塘某泥石流为例[J].甘肃水利水电技术,2016,52(5):35-37. [7] 郭长宝,杜宇本,佟元清,等.青藏高原东缘理塘乱石包高速远程滑坡发育特征与形成机理[J].地质通报,2016,35(8):1332-1345. [8] 张瑞江.青藏高原冰川演变与地质灾害[J].国土资源遥感,2010,86(增刊):54-58. [9] 彭建兵,马润勇,卢全中,等,青藏高原隆升的地质灾害效应[J].地球科学进展,2004,19(3):456-466. [10] 李永化,赵军,崔之久,等.青藏高原东缘和邻区晚新生代泥石流活动规律及其成因[J].地理研究,2002,21(5):561-568. [11] 中国科学院兰州冰川冻土研究所.中国冰川概论[M].北京:科学出版社,1988:90-100. [12] 张培震,张会平,郑文俊,等.东亚大陆新生代构造演化[J].地震地质,2014,36(3):574-585. [13] 张克信,王国灿,洪汉烈.青藏高原新生代隆升研究现状[J].地质通报,2013,32(1):1-18. [14] 葛肖虹,刘俊来,任收麦,等.青藏高原隆升对中国构造-地貌形成、气候环境变迁与古人类迁徙的影响[J].中国地质,2014,41(3):698-714. [15] 张云红,许长军,亓青,等.青藏高原气候变化及其生态效应分析[J].青海大学学报(自然科学版),2011,29(4):18-22. [16] 韩同林.青藏大冰盖[M].北京:地质出版社,1991:89-96. [17] 向波,缪启龙,高庆先.青藏高原气候变化与植被指数的关系研究[J].气候分析与农业气象,2000,21(1):29-36. [18] 陈晓光,李林,朱西德,等.青海省气候变化的区域性差异及其成因研究[J].气候变化研究进展,2009,5(5):249-254. [19] 苏珍.喀喇昆仑山—昆仑山地区冰川与环境[M].北京:科学出版社,1998:124-139. [20] 施雅风,黄茂桓,姚檀栋,等.中国冰川与环境:现在、过去和未来[M].北京:科学出版社,2000:236 -252. [21] 殷跃平,张永双,伍法权,等.汶川地震地质灾害调查成果与展望[J].中国地质调查,2014,1(1):1-9. |
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