The high dependency of crop and vegetable yield on irrigation was the key cause of the change of groundwater embedded depth.
粮食和蔬菜产量对地下水资源的高度依赖性，是引起地下水埋深变化的主要原因；
A coupled mathematical model of groundwater in which the elastic yield of aquitard is considered in Hami basin is presented for its multi layer structural groundwater system.
对具有多层含水结构的哈密盆地地下水系统，提出了一类考虑弱透水层弹性释水作用的地下水流耦合数学模型。
The water yield property of karst groundwater in Litang region of Guangxi Province was evaluated quantitatively, combined spatial analysis of GIS, geostatistics method and nonlinear model.
本文将GIS空间分析技术、地质统计学方法和非线性模型相结合，以广西黎塘地区为研究区，定量评价了岩溶地下水富水性。
This paper studies the influence on dynamic state of soil water salt, groundwater table, groundwater quality, crop growing and yield generated by saline water irrigation.
研究了咸水灌溉对土壤水盐动态、地下水位、地下水质、作物生长及产量的影响。
The groundwater recharge, specific yield of aquifer, groundwater storage and the yield can also be gotten by the said method.
利用这种方法，可以计算地下水的补给量和含水层的给水度，进一步可以计算地下水的储存量和可开采量。
The main goal of the groundwater resources evaluation is to solve the problem that the right permissive mining yield of groundwater can be made decision under given groundwater quality.
地下水资源评价主要解决的问题是符合给定水质条件下的允许开采量。
The supply yield of groundwater resource system in Shijiazhuang has been calculated by the numerical simulation model and the hydraulic optimal model of the groundwater system.
利用地下水资源系统的数值模型和水力管理模型对石家庄市地下水资源系统的供水能力进行了评价；
The supply yield of groundwater resource system in Shijiazhuang has been calculated by the numerical simulation model and the hydraulic optimal model of the groundwater system.
利用地下水资源系统的数值模型和水力管理模型对石家庄市地下水资源系统的供水能力进行了评价；
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