North China Plain region的意思|示意

With the background of soil salinity in the plain of North China, a water-heat-salt movement of soil water in unsaturated-saturated region is studied by numerical simulation.

本文以我国北方平原的土壤次生盐化为背景，对土壤中饱和—非饱和水的水—热—盐一维运动模型进行了数值模拟。

The saline groundwater region of North China Plain is short of water resources, the deep groundwater has been overdrawn seriously and the eco - environment has deteriorated.

华北平原有咸水区，水资源短缺，深层地下水严重超采，生态环境恶化。