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选用北京市平原地区74眼潜水观测井1990～2009年月埋深资料,基于Mann-Kendall法分析地下水埋深趋势及突变情况,分析了埋深的年代际及年内变化规律,并采用多元线性回归方程分析了气候变化和人类活动对地下水动态的影响。结果表明,地下水埋深在2000年前后发生突变,2000年代地下水埋深剧烈增加,且埋深增幅较大的区域较20世纪90年代大面积扩张;大多数地区地下水动态类型为降雨入渗补给—开采型,靠近水域的地区为灌溉入渗—蒸发型;回归方程相关性显著,说明地下水位变化与降水量和超采量有密切联系。
Based on the Mann-Kendall method to analyze the trend and abrupt change of groundwater depth, the decadal and intra-annual variation of buried depths were analyzed and the data of multivariate linear regression The equation analyzes the effects of climate change and human activities on groundwater dynamics. The results show that the groundwater depth has been abruptly changed before and after 2000, the groundwater depth increased sharply in the 2000s, and the area with larger increase in depth has expanded in large area than in the 1990s. In most areas, the dynamic type of groundwater is rainfall infiltration recharge - The mining type, the area close to the water area is irrigation infiltration-evaporation type; the regression equation has significant correlation, indicating that the variation of groundwater level is closely related to precipitation and over-mining volume.