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Changes in permafrost environments caused by construction and maintenance of Qinghai-Tibet Highway
Abstract：The sideward permafrost along the Qinghai-Tibet Highway (QTH) contains massive ground-ice and is at a relatively high temperature.Under the influence of the steady increase of human activities,the permafrost environment has been changed greatly for a long time.At present,the permafrost becomes warm and rapidly degenerates,including the decline of the permafrost table,rising of the ground temperature,shortening of the length of frozen section,and extension of range of melting region.Some thaw hazards (e.g.thaw slumping and thermokarst pond) have widely occurred along both sides of the roadbed.In addition,due to the incomplete construction management,the vegetation adjacent to the highway is seriously damaged or eradicated,resulting in the land desertification and ecosystem out of balance.The dust,waste and garbage brought by drivers,passengers,maintenance workers,and transportations may also pollute the permafrost environment. 作者： Author： LIN Zhan-ju NIU Fu-jun LUO Jing LU Jia-hao LIU Hua 作者单位： State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou 730000, China 期 刊： 中南大学学报（英文版） EISCI Journal： Journal of Central South University of Technology(English Edition) 年，卷(期)： 2011, (5) 分类号： U416.168 Keywords： permafrost environment Qinghai-Tibet Highway thermokarst pond thaw slumping permafrost degradation 机标分类号： TU7 X82 机标关键词： maintenance construction management land desertification ground temperature permafrost table human activities frozen section vegetation influence ecosystem range of addition massive long high 基金项目： Changes in permafrost environments caused by construction and maintenance of Qinghai-Tibet Highway[期刊论文] 中南大学学报（英文版） --2011, (5)The sideward permafrost along the Qinghai-Tibet Highway (QTH) contains massive ground-ice and is at a relatively high temperature.Under the influence of the steady increase of human activities,the perm...【Changes in permafrost environments c】相关文章：
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