气候变化领域集成服务门户(CCPortal): Extensive responses of lake dynamics to climate change on northeastern Tibetan Plateau

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DOI	10.3389/feart.2022.1007384
	Extensive responses of lake dynamics to climate change on northeastern Tibetan Plateau
	Liu, Wenhui; Liu, Hairui; Li, Qingpeng; Xie, Changwei; Zhang, Zhijun; Zhou, Guanghao; Zhang, Qi; Zhao, Qinhao
发表日期	2023
EISSN	2296-6463
卷号	10
英文摘要	The lakes on the Qinghai-Tibetan Plateau have undergone substantial changes. As intensive cryospheric components change, the response of the lake dynamics to climatic factors, glacier-snow melting, and permafrost thawing has been complex. Based on Landsat images, meteorological data, and glacier and permafrost data, the spatial-temporal changes in the lake area on the northeastern Tibetan Plateau between 1988 and 2019 were analyzed and the driving factors behind the lake changes were further explored. The results suggest that the regional lake area increased from 1988 to 2019 at rates of 0.01-16.03 km(2)/yr. It decreased during 1988-2000, quickly increased during 2000-2012, and rapidly increased during 2012-2019. The most significant lake expansion occurred in sub-region I, which is the source region of the Yangtze River Basin. There was a sharper increase during 2012-2019 than during 2000-2012 in sub-region II (the source region of the Yellow River Basin and the Qinghai Lake Basin) and sub-region III (the Qaidam Basin). The significant lake expansion occurred about 12 years earlier in sub-region I than in sub-regions II and III. This dramatic change in the lake area was closely associated with the annual precipitation, and precipitation was the primary driving factor. Although serious glacier retreat occurred, most of the lakes in the sub-regions were non-glacier-fed lakes. The correlation between glacier ablation and the change in the lake area was poor, which suggests that glacial meltwater was not the replenishment source of most of the lakes in this region. A more accelerated increase in the active layer thickness occurred (1.90 cm/yr), which was consistent with the more rapid lake expansion, and the permafrost degradation further intensified the lake expansion.
关键词	lake area spatial-temporal changes influencing factors northeastern Tibetan Plateau permafrost impact
英文关键词	GROUNDWATER; PERMAFROST; BASIN; AREA; EVOLUTION; RIVER; CO
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:000921267400001
来源期刊	FRONTIERS IN EARTH SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283887
作者单位	Qinghai University; Qinghai University; Qinghai University; Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Liu, Wenhui,Liu, Hairui,Li, Qingpeng,et al. Extensive responses of lake dynamics to climate change on northeastern Tibetan Plateau[J],2023,10.
APA	Liu, Wenhui.,Liu, Hairui.,Li, Qingpeng.,Xie, Changwei.,Zhang, Zhijun.,...&Zhao, Qinhao.(2023).Extensive responses of lake dynamics to climate change on northeastern Tibetan Plateau.FRONTIERS IN EARTH SCIENCE,10.
MLA	Liu, Wenhui,et al."Extensive responses of lake dynamics to climate change on northeastern Tibetan Plateau".FRONTIERS IN EARTH SCIENCE 10(2023).