人类活动对浅层地下水干扰程度定量评价及验证

以滹沱河流域平原为研究区，选取地下水开采量作为人类活动影响地下水变化的特征值（母序列），开采机井数量、水浇地面积等7个因子作为影响地下水变化的变量指标（子序列），采用综合指数法和MapGIS技术，借助1．25×1．25km2剖分体系，量化研究了自20世纪60年代以来不同时期人类活动对浅层地下水影响程度演变时空特征。自20世纪60年代以来，人类活动对滹沱河流域平原浅层地下水位变化的影响程度不断加剧，影响程度“低”或“较低”分布区面积不断缩小，“较高”和“高”分布区面积不断扩大，这些变化与地下水位下降时空变化特征具有较好的吻合性。目前，人类活动对地下水变化影响程度“较高”和“高”级的分布区面积已占滹沱河流域平原总面积的83.8％。规范人类合理利用地下水，加强地下水涵养势在必行。

Quantitative valuation and validation of the influence degree of human activities on shallow groundwater

The influences of human activities in different periods since 1960s on spatial-temporal variations of shallow groundwater in the Hutuo River plain were studied. The exploitation of the groundwater was selected as the eigenvalue(primary-sequences) to indicate the groundwater variations affected by human activities,while numbers of the pumping wells,area of the irrigable land and other 5 factors were regarded as the variable indexes(sub-sequences) which can influence the variations of the groundwater. Then,sy...