摘要
人类活动产生的污染源已对地下水环境构成严重威胁,尤其是浅层地下水.充分考虑人类活动因素对地下水污染风险的影响,从污染源荷载、渗透补给条件、含水层岩性、社会经济等方面构建评价地下水污染风险指标体系.根据突变理论,建立平原区浅层地下水污染风险突变评价模型.以天津市为例进行实例应用,结果表明,较高风险、中度风险和较低风险区面积分别为963.6、2540.6、7395.6km^2,较高风险区主要分布于市区周边环城4区的11个乡镇,以及滨海新区的2个乡镇.计算结果符合客观实际,与实测氨氮浓度分布吻合较好.验证了所提指标和评价模型的合理有效性.
Pollutions posed by human activities have been made serious dangers to groundwater,especially shallow groundwater.In this paper,composite groundwater pollution risk factors are proposed by combi-ning pollution press,hydrology conditions of vadose zone,natural aquifer properties,and social economy. According to catastrophe theory,a .new methodology for shallow groundwater pollution risk evaluation is established.It has been applied to Tianjin plain areas.The results show higher level,medium level and lower level risk areas covered 963.6,2540.6and 7395.6km^2,respectively.Higher level risk areas mainly distributed in 11 towns surrounding urban districts and 2towns in Tanggu district.The results are consis-tent with the actual situation,so as to provide helpful suggestion for land use planning and groundwater protection.
作者
李绍飞
陈伏龙
余萍
孙书洪
LI Shaofei;CHEN Fulong;YU Ping;SUN Shuhong(College of Water Conservancy Engineering,Tianjin Agriculture University,Tianjin 300384,China;College of Water Conservancy ~Architectural Engineering,Shihezi University,Shihezi 832003,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2018年第12期1035-1040,1049,共7页
Engineering Journal of Wuhan University
基金
天津市科委应用基础与前沿技术重点项目(编号:15JCZDJC41400)
国家自然科学基金项目(编号:51769029)
国家自然科学基金面上项目(编号:51779165)
国家科技重大专项子课题(编号:2017ZX07106003)
关键词
浅层地下水
污染风险
突变级数
评价
shallow groundwater
pollution risk
catastrophe theory
assessment
