我国北方主要平原地下水潜力评价

Potential Evaluation of Groundwater in the Major Plain of North China

通常用地下水开采系数反映地下水资源潜力,只考虑了地下水的持续开采,使地下水资源评价与开发利用相互脱节,不便于地下水资源的管理与利用。地下水潜力系数是综合了地下水可开采盈余量、咸水、微咸水可利用量以及在水资源利用过程中节水量等,对各平原(盆地)地下水潜力进行了评价。指出了不同地区地下水开发利用方向:西北内陆盆地突出要解决地表水、地下水的相互涵养保护和对生态环境保护的问题,应充分利用水资源相互转化和重复循环的规律,扩大地下水开采量,提高水资源的重复利用率。华北及东北地区应从水资源现状、环境和社会经济的特点出发,综合治理,开源节流,保护环境,合理调整开采方案,应加强浅层微咸水综合开发利用研究。

The exploitable coefficient is used to express the potential of groundwater, but it only considers the uninterrupted exploitation, and break up the evaluation and the exploitable utilization, so it is inconvenience to manage and utilize groundwater. The potential coefficient synthesizes the exploitable surplus of groundwater, utilization of salty and micro salty water, and the saved water in the utilization. And it evaluates the potential of groundwater in the plain and basin area, also shows the aspect of exploitation and utilization of groundwater in different region. In the Northwest basin, the ecological environmental protection and mutual protection of groundwater and surface water is the important thing. And the rule of transform and cycle of groundwater should be sufficient, then the exploitation can be enlarged and the percent of repetitive use can be increased. In the North China and the Northeast plain, comprehensive development and utilization research of micro salty water should be strengthened, in the sight of characteristic of water resource, environment and social economy, considering the comprehensive renovate, environmental protection, the exploitable program should be regulated.