中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Divergent changes of surface water and its climatic drivers in the headwater region of the Three Rivers on the Qinghai-Tibet Plateau

文献类型:期刊论文

作者Xiao, Zhen6,8; Ding, Mingjun7,8; Li, Lanhui5; Nie, Yong4; Pan, Jiayi7,8; Li, Runkui2,3,6; Liu, Linshan1; Zhang, Yili1
刊名ECOLOGICAL INDICATORS
出版日期2024
卷号158页码:13
关键词Water body mapping Climate change Landsat Spatial statistic The headwater region of Three Rivers
ISSN号1470-160X
DOI10.1016/j.ecolind.2024.111615
通讯作者Ding, Mingjun(dingmj@jxnu.edu.cn)
英文摘要Exploring the changes and drivers of open-surface water bodies is essential for the well-being of humanity in the face of global climate change. As one of the core areas in the Qinghai-Tibet Plateau (QTP), the headwater region of the Yangtze, Yellow, and Lancang Rivers is a water source for billions of people in Asia. However, previous studies failed to provide complete open-surface water data and watershed-level analysis for this region. Utilizing the Google Earth Engine platform and vegetation-water algorithm, we interpreted open-surface water bodies from all available Landsat surface reflectance data and generated annual 30-m water body frequency maps for 1987-2021, which is a complete open-surface water body dataset in the study area. Compared to the Joint Research Centre's Global Surface Water dataset, the dataset in our study maintains consistency in 90.1 % of pixels and achieved correct classification in 74.6 % of pixels within the inconsistent areas. The perennial water body area exhibited an increase from 232,335 to 293,534 ha. Instead, the seasonal water body area notably declined from 223,809 to 182,003 ha. The Yangtze River headwater region shows an increase in perennial water bodies, with no significant variation in seasonal water bodies. The Yellow River headwater region experiences an increase in perennial water bodies but a decrease in seasonal water bodies. Remarkably, in the Lancang River headwater region, with lower water body density, both the perennial and seasonal water body areas decreased by 36.8 % and 48.8 %, respectively. The divergent changes in the headwater region of the Three Rivers are primarily attributed to spatial heterogeneity in the temperature effects on water bodies. Anticipated increases in the temperature are expected to amplify these differences. Our findings suggest that climate-driven open-surface water body changes are ongoing in this core area in the QTP, threatening the water security of densely populated East and Southeast Asia in the future.
WOS关键词LANDSAT TIME-SERIES ; LAKE VOLUME ; INDEX NDWI ; CONNECTIVITY ; EMISSIONS
资助项目Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0603] ; National Natural Science Foundation of China[42101099] ; National Natural Science Foundation of China[41671104]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001166547600001
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/202963]  
专题中国科学院地理科学与资源研究所
通讯作者Ding, Mingjun
作者单位1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing Yanshan Earth Crit Zone Natl Res Stn, Beijing 101408, Peoples R China
3.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
5.Xiamen Univ Technol, Sch Comp & Informat Engn, Xiamen 361024, Peoples R China
6.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
7.Jiangxi Normal Univ, Key Lab Poyang Lake Wetland & Watershed Res, Minist Educ, Nanchang 330022, Jiangxi, Peoples R China
8.Jiangxi Normal Univ, Sch Geog & Environm, Nanchang 330022, Peoples R China
推荐引用方式
GB/T 7714
Xiao, Zhen,Ding, Mingjun,Li, Lanhui,et al. Divergent changes of surface water and its climatic drivers in the headwater region of the Three Rivers on the Qinghai-Tibet Plateau[J]. ECOLOGICAL INDICATORS,2024,158:13.
APA Xiao, Zhen.,Ding, Mingjun.,Li, Lanhui.,Nie, Yong.,Pan, Jiayi.,...&Zhang, Yili.(2024).Divergent changes of surface water and its climatic drivers in the headwater region of the Three Rivers on the Qinghai-Tibet Plateau.ECOLOGICAL INDICATORS,158,13.
MLA Xiao, Zhen,et al."Divergent changes of surface water and its climatic drivers in the headwater region of the Three Rivers on the Qinghai-Tibet Plateau".ECOLOGICAL INDICATORS 158(2024):13.

入库方式: OAI收割

来源:地理科学与资源研究所

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