【摘要】 首次引入地下水分生产效率、盐分修正地下水分生产效率和雨水的地下水转化率概念，讨论了地下水埋藏深度与作物产量、地下水蒸发量、耕层土壤盐分、地下水分生产效率、盐分修正地下水分生产效率和雨水的地下水转化率之间的关系，根据各关系，确定了以土地生产效　率、地下水分生产效率、盐分修正地下水分生产效率和雨水的地下水转化率为优化目标的最佳地下水埋藏深度范围，为干旱、半干旱盐化潮土地区的旱、盐、渍综合治理提供较合理的　指标．更多还原

【Abstract】 The concepts of the ground water utilization efficiency, salt modified ground water utilization efficiency and ground water transformation efficiency of rain were proposed for the first time in present paper. The relationships between ground water evaporation, salinity of root layer soil, ground water utilization efficiency, salt modified ground water utilization efficiency and ground water transformation efficiency of rain and ground water depth were discussed. Based on the relationships, the range of optimum ground water depths were made certain, for the optimizing objects of the ground water utilization efficiency, salt modified ground water utilization efficiency and ground water transformation efficiency of rain, which provided the guidelines for the drought-saline- waterlogging comprehensive treatments of the saline soil in arid and semi-arid region.更多还原