关键词: 华北东部平原；浅层咸水；地下水；开采技术

Abstract:

Development and utilization of shallow groundwater from low permeability aquifer in low altitude plain of the eastern North China is the key issue to excavate resources potential of water and soil and increase resource utilization of light-heat biological environment. Based on the lessons from home and overseas study and investigation and construction in situ, different types of demonstration projects were successfully implemented in Tianjin, Cangzhou, Hengshui and Jiyang, such as “radial well of pumping salt water and replacing fresh water”, “recycling well of river water-rain floods-phreatic water”,  “enhancing pumpage well by siphone-conectivity way”and has achieved good results under the condition of low-cost. It has not only solved the problem of irrigation water shortage in fresh water, brackish water, even salt water distribution areas, but also made large-scale utilization of shallow salt water become possibility, and provide a feasible way for reasonable development and utilization of soil and water resources.

Key words: eastern North China Plain；shallow salt water；groundwater；pumping technique