气候变化领域集成服务门户(CCPortal): The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China

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DOI	10.3390/rs16020378
	The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China
	Guo, Tongze; Li, Runkui; Xiao, Zhen; Cai, Panli; Guo, Jingxian; Fu, Haiyu; Zhang, Xiaoping; Song, Xianfeng; Casado, Monica Rivas; Tsangaratos, Paraskevas
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	2
卷号	16 期号:2
英文摘要	Water scarcity is a significant challenge in China, and the South-to-North Water Diversion Project (SNWDP) aims to address the water deficit in the northern region. This study analyses Landsat 5/7/8 remote sensing imagery from 2001 to 2020 on the Google Earth Engine (GEE) cloud platform to assess the impact of the SNWDP on surface water bodies in water-receiving areas. Moreover, by integrating MODIS evapotranspiration data and ERA5 meteorological reanalysis data, this study comprehensively assesses the SNWDP's contribution to varied surface water body changes. Using an improved multi-temporal water frequency method, this study extracts max, seasonal, and year-long water surface areas. The results reveal that Beijing and Henan provinces have experienced significant increases in water surface areas post-SNWDP, with their max water surface area growing at a rate of 10.42 km2/yr and 33.49 km2/year, respectively. However, water surface areas in several provinces, especially those along the east route, were not observed to increase. The spatially detailed Mann-Kendall test indicates that the expansion of year-long water bodies is mostly concentrated near the central route project, revealing spatial heterogeneity in the water replenishment effect. Cropland and impervious surfaces are the main contributors to transfers in and out of water bodies. Meteorological and water use factors for spatial variations in water changes are also identified. These findings provide insights into the varied hydrological consequences of the SNWDP and contribute to the evaluation and management of similar large-scale water diversion projects around the world.
英文关键词	water diversion; south-to-north water diversion project; long-term remote sensing; water body types; spatiotemporal change; Google Earth Engine
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001150904000001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299883
作者单位	Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS
推荐引用方式 GB/T 7714	Guo, Tongze,Li, Runkui,Xiao, Zhen,et al. The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China[J],2024,16(2).
APA	Guo, Tongze.,Li, Runkui.,Xiao, Zhen.,Cai, Panli.,Guo, Jingxian.,...&Tsangaratos, Paraskevas.(2024).The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China.REMOTE SENSING,16(2).
MLA	Guo, Tongze,et al."The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China".REMOTE SENSING 16.2(2024).