Permafrost on the Qinghai-tibet Plateau under a Changing Climate

被引：11
|
作者：
JIN Huijun
CHENG Guodong
LI Xin
LI Shuxun Observatory and Research Station of the Qinghai-Tibet Plateau. State Key Laboratory of Frozen Soil Engineering
机构：
来源：
Chinese Science Bulletin | 1999年 / S1期
关键词：
Permafrost; Active layer; Climatic changes; Greenhouse gases; Environmental impacts;
D O I：
暂无
中图分类号：
P534 [各时代地史及其地层];
学科分类号：
摘要：
Permafrost on the Qinghai-Tibet Plateau (QTP) has experienced major shifts during theQuaternary. During the past 40 years, permafrost has been degrading extensively, due to climaticwarming. Simulations suggest significant degradation of permafrost both in extent and inthickness within the next 50-100 years. Freshwater wetlands on the QTP can contributesignificantly to the global budgets in the atmospheric greenhouse gases. Permafrost degradationon the QTP has caused destabilization of foundations of engineering structures, deterioration ofgrasslands and meadows, and weakening of permafrost control on water resources.
引用
收藏
页码：152 / 158
页数：7
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