新建网页 1 关键词： 地下水水源地；安全评价；指标体系 [gap=1007]Key words： Groundwater source region；safety evaluation；indices system
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The human capital approach (HCA) was applied to valuate the loses of groundwater source pollution by nitrate in the typical high-yielding farming region North China.
应用人力资本法(HCA)评估了华北典型高产粮区地下水资源硝酸盐污染的价值损失。
The seepage of irrigation water is an important source of groundwater in the irrigated farm region of arid area Northwest China.
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。
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