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Spatiotemporal Variations of Aksai Chin Lake and its influencing factors during 1972-2018
Yan,Wei1,2; Jiang,Ziyun2; Zhou,Feng3; Ning,Jia4; Hou,Shuangshuang5; Wang,Jian1; Han,Rumeng2; Liu,Minghua2
2021-05-01
Source PublicationIOP Conference Series: Earth and Environmental Science
ISSN1755-1307
Volume783Issue:1
AbstractAbstract In the context of increasing lake expansion on the Tibetan Plateau, which is sensitive to climate change, it is of great significance to strengthen the research on the characteristics of lake change and its response to climate change. This paper was designed to investigate the spatiotemporal variations of Aksai Chin Lake (ACL), a typical large lake on the Tibetan Plateau, by using Landsat MSS/TM/ETM+/OLI images during 1972-2018, and to quantitatively discuss the effects of climate on lake changes based on meteorological data from Shiquanhe station. During 1961-2018, annual mean air temperature and precipitation in this region increased at rates of 0.44 °C/decade and 1.35 mm/decade, respectively, with a mutation point of 1999 for temperature, while evaporation decreased at the rate of -54.3 mm/decade, with two mutation points in 1972 and 2014, respectively. The area of ACL had increased at an average rate of 2.51 km2 per year, with a fluctuation of “slight expansion – shrinkage – rapid expansion – slight expansion – rapid expansion” during 1972-2018. Controlled by the topography, the ACL expanded to the southeast by 3851.6 m in total. In terms of the lake area response to climate change, air temperature and evaporation were the main factors affecting ACL area directly, while precipitation mainly regulated ACL by the indirect effect through air temperature and evaporation. Generally, rising air temperature, increasing precipitation and decreasing evaporation all contribute to promote the expansion of ACL.
DOI10.1088/1755-1315/783/1/012145
Language英语
WOS IDIOP:1755-1307-783-1-012145
PublisherIOP Publishing
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/164187
Collection中国科学院地理科学与资源研究所
Affiliation1.School of Urban and Planning, Yancheng Teachers University, Yancheng, Jiangsu, 224007, China
2.School of Geographic Sciences, Xinyang Normal University, Xinyang, Henan, 46400, China
3.College of Computer and Information Technology, Xinyang Normal University, Xinyang, Henan, 46400, China
4.Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
5.College of Life Sciences, Guizhou University, Guiyang, Guizhou, 550001, China
Recommended Citation
GB/T 7714
Yan,Wei,Jiang,Ziyun,Zhou,Feng,et al. Spatiotemporal Variations of Aksai Chin Lake and its influencing factors during 1972-2018[J]. IOP Conference Series: Earth and Environmental Science,2021,783(1).
APA Yan,Wei.,Jiang,Ziyun.,Zhou,Feng.,Ning,Jia.,Hou,Shuangshuang.,...&Liu,Minghua.(2021).Spatiotemporal Variations of Aksai Chin Lake and its influencing factors during 1972-2018.IOP Conference Series: Earth and Environmental Science,783(1).
MLA Yan,Wei,et al."Spatiotemporal Variations of Aksai Chin Lake and its influencing factors during 1972-2018".IOP Conference Series: Earth and Environmental Science 783.1(2021).
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