【摘要】 西北干旱地带农业区的灌溉水入渗是地下水补给的重要途径。在甘肃省黑河干流细土平原区 ,利用中子仪和负压计观测了灌溉水入渗时包气带的含水率和土水势的变化 ,初步分析了灌溉水入渗运移规律 ,确定了灌溉水入渗补给系数随地下水埋深的变化 ,为本区进行地下水资源评价奠定了基础。更多还原

【Abstract】 The seepage of irrigation water is an important source of groundwater in the irrigated farm region of arid area Northwest China. The change processes of content of water and water potential in zone of aeration was calculated by employing neutron moister meter and depressimeter in the plain of main stream region of Heihe River, Gansu province. The regulation of irrigation water transportation in zone of aeration was preliminarily analyzed. The changed amplitude of the seepage recharge coefficient of irrigated water was 0.3～0.9 according to the depth of groundwater table in this region, which laid the foundation of assessment of groundwater resource in this region.更多还原