石羊河流域盆地地下水动态变化特征分析  

Analysis of groundwater dynamic changes in Shiyang river basin

作　　者：李生潜[1] 张彦洪[2] 马雁萍[1] 王磊[1] 穆红文 LI Shengqian;ZHANG Yanhong;MA Yanping;WANG Lei;MU Hongwen(Shiyanghe Watershed Management Bureau,Water Resource Department of Gansu Province,Lanzhou 730000,China;College of Water Re-sources and Hydropower Engineering,Gansu Agricultural University,Lanzhou 730070,China;China Energy Construction Group Gansu Province Electric Power Design Co.,Ltd.,Lanzhou 730050,China)

机构地区：[1]甘肃省水利厅石羊河流域管理局,兰州730000 [2]甘肃农业大学水利水电工程系,兰州730070 [3]中国能源建设集团甘肃省电力设计有限公司,兰州730050

出　　处：《干旱区资源与环境》2018年第12期145-151,共7页Journal of Arid Land Resources and Environment

基　　金：甘肃省水利科技重点项目;石羊河流域生态修复水资源统一管理创新模式研究;石羊河流域盆地地下水位时空演变规律及影响因素分析资助

摘　　要：恢复地下水位,是石羊河流域生态修复的关键。文中根据2003-2017年石羊河流域水资源监测、调查资料,应用统计分析方法和Arc GIS软件,研究石羊河流域治理以来地下水动态变化特征,评估流域治理效果。分析表明,石羊河流域地下水位年内变化呈季节性波动,并因地区而异。青土湖年内水位变化缓慢,年末水位较高;民勤-武威盆地波动较大,夏秋降幅较深;金川-永昌盆地春季水位较高,治理后水位降低,波动减小。流域治理以来,青土湖地下水位持续回升,中游凉州-民勤盆地止跌回升,金川-永昌盆地连年下降并趋于稳定。石羊河流域地下水动态是气候因素和人类活动共同影响的结果,其中,流域水资源统一管理对地下水动态具有重大影响。目前,流域大部分地区的地下水位还没有回升到天然植被正常生长的埋深要求,应继续做好流域后续治理。Raising groundwater level is the key to the ecological restoration in Shiyang river basin. Based on the monitoring and investigation data of water resources in Shiyang river basin from 2003 to 2017,the characteristics of groundwater dynamic since valley harnessing were studied by using statistical analysis method and Arc GIS software so as to assess watershed management effect. The results show the monthly fluctuation of groundwater level within a year varied. The monthly groundwater level in Qingtu Lake changes slowly and reaches high value at the end of year but fluctuates in Minqin-Wuwei basin greatly and has deep fall in summer and autumn. In Jinchuan-Yongchang basin,water table is high in spring and declines to stability. Since beginning of watershed comprehensive management,annual groundwater level continuously rises up in Qintu Lake and rallies in midstream Minqin-Wuwei basin. And in Jinchang-Yongchang basin,the groundwater level tends toward stability after sharply descend in initial years. In the general,the groundwater dynamic in Shiyang river watershed were affected by both climate and human activities,and the latter factors always had more great impact such as the unified management of water resources in river basin. Now although the prophase goal watershed management have accomplished,but the groundwater level in most areas of the basin has not yet recovered to the requirement of the natural vegetation growth,so the follow-up management of the basin should be continued in next stage.

关 键 词：地下水动态 时空分布 埋深 石羊河流域 影响因素 

分 类 号：TV123.4[水利工程—水文学及水资源]