Spatiotemporal changes in terrestrial water storage in the Beijing-Tianjin Sandstorm Source Region from GRACE satellites
作者机构：Institute of Desertification StudiesChinese Academy of ForestryBeijing100091China Key Laboratory of Desert Ecosystem and Global ChangeState Administration of Forestry and GrasslandBeijing100091China The College of Environment and Planning of Henan UniversityKaifeng475004HenanChina
出 版 物：《International Soil and Water Conservation Research》 (国际水土保持研究（英文）)
年 卷 期：2020年第8卷第3期
页 面：295-307页
核心收录：
学科分类：0710[理学-生物学] 081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 0903[农学-农业资源与环境] 0815[工学-水利工程] 0901[农学-作物学] 0833[工学-城乡规划学] 0713[理学-生态学] 0834[工学-风景园林学（可授工学、农学学位）]
基 金：This work was supported by the National Key Research and Development Program of China(Grant No.2016YFC0500801 and 2016YFC0500804) the National Natural Science Foundation of China(Grant Nos.41701010 and 410701503) the Fundamental Research Funds for the Central Non-profit Research Institution of Chinese Academy of Forestry(Grant No.CAFYBB2019MA009).
主 题：Terrestrial water storage Beijing-Tianjin Sandstorm Source Region Groundwater LULC
摘 要：The Sandstorm Source Control Project in and around the Beijing-Tianjin region was one of the most important ecological projects in China.Terrestrial water storage(TWS)has important impacts on the ecological construction,agriculture,industry,and resident s lives.Based on the Gravity Recovery and Climate Experiment(GRACE)data,meteorological and Moderate Resolution Imaging Spectroradiometer(MODIS)data,etc.,this paper analyzed spatiotemporal characteristics of TWS,groundwater storage,and precipitation,and explored the influencing factors of regional TWS combined with land use and land cover(LULC),social and economic data.The most important results were as follows:(1)From 2003 to 2016,TWS in the Beijing-Tianjin Sandstorm Source Region showed a decreasing trend with a rate of 3.14 mm yr-1.(2)The TWS decline was caused mainly by groundwater overexploitation,but not pre-cipitation variation.(3)Spatiotemporal variations of TWS were related to LULC.The area with the most serious decrease of TWS was mainly located in the southwestern part of the region,where farmland percentage and population density were greater.(4)Reducing the percent of farmland and tree planting,and adding the shrub and grass planting,could be a viable choice for the Beijing-Tianjin Sandstorm Source Control Project.These results provide a scientific basis for regional water resource and ecological management.
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