Is satellite-observed surface water expansion a good signal to China's largest granary?
文献类型：期刊论文
| 作者 | Liang, Han3,4; Zhou, Yan3,4; Cui, Yaoping3,4; Dong, Jinwei2; Gao, Zhenfei3,4; Liu, Bailu3,4; Xiao, Xiangming1 |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 303页码:14 |
| 关键词 | Northeast China Surface water area Groundwater storage Google Earth Engine Evaporation |
| ISSN号 | 0378-3774 |
| DOI | 10.1016/j.agwat.2024.109039 |
| 产权排序 | 3 |
| 英文摘要 | Water resources are the premise of sustainable agricultural development in Northeast China (NEC), the country's largest granary. Revealing the long-term evolution of water resources from multiple perspectives, such as surface water area (SWA) and groundwater storage (GWS), is crucial for understanding their current status and predicting future trends to formulate adaptive strategies to promote sustainable water management. Here, firstly, we annually mapped surface water in 1987-2023 using the Google Earth Engine (GEE) cloud service, all these historical 30-m Landsat records, and a mature surface water detection algorithm; then, we calculated annual GWS using Gravity Recovery and Climate Experiment (GRACE) satellite data and compared the trends of SWA and GWS to analyze the current status and evolution direction of water resources. We found continuous expansion of SWA (169.3 km2/yr) since 2002 after a 15-year consecutive decline, while GWS significantly declined (2.37 mm/yr). Quantitative attribution analyses identified the increasing artificial lakes and aquaculture ponds as the major drivers of surface water expansion, with a contribution of 85.0 %, suggesting that the expanding surface water bodies seen from space were just an illusion of increasingly abundant water resources. In addition, we revealed the increasing water evaporation (0.2 km3/yr) and the ratio (0.005-0.2 %/yr) of water evaporation to evapotranspiration (ET) with surface water expansion, indicating that the contribution of water evaporation to ET is more prominent and evaporative water loss has become a new threat to local water security and deserves much more attention. Our research can not only bring new insights into the current status of water security in China's largest granary but also provide a typical case for reference in analyzing water resource changes in other similar regions. |
| WOS关键词 | GROUNDWATER DEPLETION ; NORTHEAST CHINA ; GRACE ; AREA ; DROUGHT ; STORAGE |
| 资助项目 | Research Project in Higher Education Institutions in Henan Province[24A170012] |
| WOS研究方向 | Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001309553300001 |
| 出版者 | ELSEVIER |
| 资助机构 | Research Project in Higher Education Institutions in Henan Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/208482]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhou, Yan; Cui, Yaoping |
| 作者单位 | 1.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Henan Univ, Coll Geog & Environm Sci, Kaifeng 475004, Peoples R China 4.Henan Univ, Key Lab Geospatial Technol Middle & Lower Yellow R, Minist Educ, Kaifeng 475004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Han,Zhou, Yan,Cui, Yaoping,et al. Is satellite-observed surface water expansion a good signal to China's largest granary?[J]. AGRICULTURAL WATER MANAGEMENT,2024,303:14. |
| APA | Liang, Han.,Zhou, Yan.,Cui, Yaoping.,Dong, Jinwei.,Gao, Zhenfei.,...&Xiao, Xiangming.(2024).Is satellite-observed surface water expansion a good signal to China's largest granary?.AGRICULTURAL WATER MANAGEMENT,303,14. |
| MLA | Liang, Han,et al."Is satellite-observed surface water expansion a good signal to China's largest granary?".AGRICULTURAL WATER MANAGEMENT 303(2024):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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