基于Mann-Kendall法的地下水动态研究——以崔家营水电站上游为例  

Study on groundwater dynamics based on Mann-Kendall method:A case study of the upstream area of Cuijiaying hydropower station

作　　者：江越潇 党慧慧 易春瑶 江南 李伟 范威 孙智杰 梁川 姚佳芮 Jiang Yuexiao;Dang Huihui;Yi Chunyao;Jiang Nan;Li Wei;Fan Wei;Sun Zhijie;Liang Chuan;Yao Jiarui(Hubei Key Laboratory of Resources and Eco-environmental Geology,Wuhan 430034,China;Geological Environmental Center of Hubei Province,Wuhan 430034,China)

机构地区：[1]资源与生态环境地质湖北省重点实验室,湖北武汉430034 [2]湖北省地质环境总站,湖北武汉430034

出　　处：《资源环境与工程》2025年第1期44-50,共7页Resources Environment & Engineering

基　　金：湖北省地下水监测工程建设与运行维护(42000024622T000000428);湖北省地下水资源战略储备评价(42000024622T000000410)。

摘　　要：在地下水监测工程运行过程中,发现在旱期襄阳地区的局部地下水水位出现了上升趋势,与湖北省地下水水位普遍下降的趋势形成了鲜明对比,推测这种现象可能是由水电站蓄水活动导致地下水水位抬升。为了探究这一现象,收集了崔家营水电站建成前后(2003—2012年)上游地区的地下水水位监测数据,运用Mann-Kendall(M-K)检验法对地下水水位变化趋势及其突变时间进行系统研究。结果表明,汉江一级阶地的地下水水位显著受到地表水水位动态变化的影响,M-K检验所识别的突变时间与崔家营水电站的首次蓄水时间大致一致;二级阶地和三级阶地地下水水位也主要呈上升趋势,但未识别出突变点。水电站的建设不仅引发了区域性地下水水位的抬升,同时也导致了研究区地下水水力梯度的减小。During the groundwater monitoring initiative,an unexpected increase in groundwater levels was detected in certain areas of Xiangyang during periods of drought,contrasting sharply with the widespread decline in groundwater levels observed throughout the province.It is hypothesized that this anomaly may be attributed to the water impoundment activities of the hydropower station.In order to explore this phenomenon,this paper collected groundwater level monitoring data from the upper reaches of the Cuijiaying Hydropower Station,spanning the period before and after the establishment of the station from 2003 to 2012.By employing the Mann-Kendall(M-K)test method,a systematic investigation was conducted to analyze the trends and identify abrupt changes in groundwater levels.The results show that the groundwater levels on the first terrace of the Han River are notably influenced by the fluctuations in surface water levels.The mutation time identified by the M-K test is roughly consistent with the first impoundment time of the Cuijiaying Hydropower Station.Although the groundwater levels on the second and third terraces predominantly exhibit an ascending trend,no distinct points of mutation are detected.Moreover,the construction of the hydropower station has not only led to an elevation of the regional groundwater levels but has also resulted in a reduction of the hydraulic gradient within the study area.

关 键 词：MANN-KENDALL检验 地下水水位 地下水动态 

分 类 号：P641.74[天文地球—地质矿产勘探]