南水北调东线工程运行前后山东省水储量变化分析  

Analysis of Changes of Terrestrial Water Storage in Shandong Province Before and After South⁃to⁃North Water Diversion Project

作　　者：兀泽坤 李爱民[1] WU Zekun;LI Aimin(School of Geo-Science&Technology,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学地球科学与技术学院,河南郑州450001

出　　处：《人民黄河》2024年第7期72-78,共7页Yellow River

基　　金：河南省科技攻关项目(232102320123);河南省自然科学基金面上项目(242300421372)。

摘　　要：为掌握南水北调东线工程对山东省陆地水储量变化的影响,采用2010年1月至2017年12月GRACE重力卫星数据,结合同期主要水文要素(降水量、蒸散发量)数据集,以南水北调开通时间为界,利用分时间段分区域的方式对研究区陆地水储量变化、主要水文要素变化进行研究,结合同期南水北调工程调水量数据推算南水北调工程对山东省水储量变化的影响。结果表明:研究时段内,多年间研究区水储量空间分布呈从东到西依次降低的态势,季节特性表现为夏秋季水储量丰富,而春冬季较少;分时段研究结果显示水储量衰减速度在南水北调工程开通前后分别为-1.45、-0.36 cm/a,综合多个水文要素数据集计算发现南水北调工程对鲁西的中南部、鲁中的南部产生了较好的正向影响。综合而言,南水北调工程缓解了山东省水储量56.9%的下降趋势,在研究时间段内对研究区水资源条件、水储量富集产生了较为积极的作用。In order to master the influence of the East Route of South-to-North Water Diversion Project to the regional terrestrial water storage in Shandong,based on GRACE gravity satellite data from January 2010 to December 2017,combined with the data set of major hydrological factors(precipitation and evapotranspiration)in the same period,the changes of terrestrial water storage and major hydrological factors in the study area were studied by time period and region,and by the operating time of the South-to-North Water Diversion Project as the boundary.The influence of the South-to-North Water Diversion Project to the change of terrestrial water storage in Shandong Province was calculated based on the water transfer data of the South-to-North Water Diversion Project.The results show that the spatial distribution of terrestrial water storage in the study area decreases from east to west over the years.The seasonal characteristics show that the terrestrial water storage is abun-dant in summer and autumn,but less in spring and winter.The results show that the terrestrial water storage decay rate is-1.45 cm/a and-0.36 cm/a before and after the operation of the South-to-North Water Diversion Project respectively.It is found that the South-to-North Wa-ter Diversion Project has a good positive impact on the central and southern parts of western Shandong Province and the southern parts of cen-tral Shandong Province.In summary,the South-to-North Water Diversion Project has alleviated the decline trend of 56.9%of terrestrial water storage in Shandong Province,and has a positive effect on water resources conditions and terrestrial water storage enrichment in the study area during the study period.

关 键 词：GRACE重力卫星 陆地水储量 时空变化 南水北调 

分 类 号：TV68[水利工程—水利水电工程] TV213.4