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地下水区域环境评价的几个问题

朱学愚1, 钱孝星2   

  1. 1. 南京大学 地球科学系 南京 210093;2. 河海大学 土木工程学院 江苏 南京 210098
  • 收稿日期:2000-03-20 修回日期:2000-03-20 出版日期:2000-03-20 发布日期:2000-03-20

On Importance of Groundwater Environment Evaluation in Environmental Impact Assessment

ZHU Xue-yu1, QIAN Xiao-xing2   

  1. 1. Department of Earth Sciences, Nanjing University, Nanjing, 210093; 2. Faculty of Civil Engineering, Hehai University, Nanjing,210098 China
  • Received:2000-03-20 Revised:2000-03-20 Online:2000-03-20 Published:2000-03-20

摘要: 在进行区域环境评价时,对地下水环境的评价应当占有相当的地位。文章作者主要探讨了: (1)对一个区域进行战略环境评价时,应当考虑当地的水资源和水环境条件,不能因为新上 建设项目造成当地居民生活质量的下降。(2)正确处理少占耕地和保护水源的矛盾,既要保 护耕地,也要保护水源。(3)当河水与地下水有水力联系时,即使污水是达标排放的,也可 能引起地下水的污染,使之不符合供水标准。对于此种情况应当慎重对待。(4)探讨了地下 水污染源调查的要点。正确地认识和解决上述问题,有助于提高区域环境评价的质量。

Abstract: With the largest population in the world, China is facing the problem of water resource shortage. Because groundwater has become the major sou rce of water supply in north China, the groundwater environment evaluation should play an important role in the Environmental Impact Assessment (EIA). In this paper, the authors will discuss the following problems:   1. Groundwater resources and environment should be taken into consideration in t he Strategic Environmental Assessment (SEA) since they are restricting factors f or industrial projects. Power station, petrochemical company, iron and steel pla nts should not be built in the areas where water resources are in shortage. Suc h environment problems caused by exploitation of groundwater as groundwater cont amination, land subsidence, karst collapse, seawater intrusion and disappearance of spring should be avoid carefully.   2. In order to protect the quality of groundwater, factories and waste dumping a reas should not be placed in the recharge region of well field.   3. Groundwater could be contaminated by discharging wastewater into streams in a reas where stream water recharges the groundwater, even if the wastewater may fi t the "Integrated Waste Water Discharge Standard". Therefore, it is necessary to determine the discharge standard of wastewater according to the influence of po lluted river on groundwater quality.   4. Investigation of pollution sources of groundwater should include the location of pollution and quantity of pollutant entering the aquifer.   The authors believe that the above problems should be properly considered in ord er to improve the quality of environmental impact assessment.