Thermokarst lake changes between 1969 and 2010 in the Beilu River Basin, Qinghai-Tibet Plateau, China
Thermokarst lake changes between 1969 and 2010 in the Beilu River Basin, Qinghai-Tibet Plateau, China
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DOI：
10.1007/s11434-015-0730-2
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发表时间：
2015-03-01
期刊：
影响因子：
18.9
通讯作者：
Yin, Guoan
中科院分区：
文献类型：
--
作者：
Luo, Jing;Niu, Fujun;Yin, Guoan
利用航空和卫星遥感影像，研究了青藏高原北麓河流域近40年（1969-2010年）热岩溶湖泊的变化。结果表明，1969年至2010年期间，热岩溶湖泊活动普遍迅速增加。热岩溶湖的数量增加了约534个，覆盖面积扩大了约410公顷。观察到的两个主要变化是小湖泊数量的增加和较大湖泊的扩大。这些变化可能是持续的气候变暖和降水和蒸散量（P-ET）之间逐渐增加的不平衡的结果。然而，一些非气候因素，如湖底基质和当地的工程活动，也影响了湖泊的变化。如果气温和P-ET继续上升，未来热岩溶湖泊的数量和覆盖面积可能继续增加。
This work presents changes of thermokarst lakes from Beilu River Basin on the Qinghai-Tibet Plateau over the past four decades (1969-2010) using aerial and satellite image interpretation. The results indicated that thermokarst lake activity had generally increased rapidly between 1969 and 2010. The number of thermokarst lakes had increased by approximately 534, and their coverage expanded by about 410 ha. The two main changes observed were an increase in the number of small lakes and the expansion of larger lakes. These changes are likely the result of persistent climate warming and a gradually increasing imbalance between precipitation and evapotranspiration (P-ET). However, some non-climatic factors, such as the lake-bottom substrate and local engineering activities, have also influenced the lake changes. If air temperature and P-ET continue to rise, the number of thermokarst lakes and the area they cover may continue to increase in the future.