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机构地区:[1]中国科学院西双版纳热带植物园,云南昆明650000 [2]天津农学院水利工程系,天津300380
出 处:《水资源保护》2016年第1期125-129,共5页Water Resources Protection
摘 要:依据DPSIR模型的基本原理,遵循评价指标体系的构建原则,立足于天津市水资源和水环境实际情况,以驱动力、压力、状态等5项指标作为准则层,共选取了人口密度、人均生活用水量、废水排放量、水资源总量、城市水达标率等20项指标,对天津市2009—2011年城市水环境安全状况进行了等级评价计算。结果表明,2009年水环境安全度最高,2011年次之,2010年最低;水环境安全虽均为良好等级,但是人口密度的加大,废水排放量的增多等威胁城市水环境安全的因素不容忽视,城市水环境问题仍亟待解决。Based on the basic principles of DPSIR model, following the principles of construction of evaluation system, starting from the truth about water resources and water environment in Tianjin, and taking five indicators, including driving force, pressure, status, etc. , as the criterion layers, 20 indicators, including population density, wastewater emissions, total water resources, urban water compliance rate, etc. , are selected to evaluate water environment security situation of Tianjin City during 2009 and 2011. The results show that, water environment security situation was the most promising in 2009, followed with which in 2011, while it was the worst in 2010. Although the level of water environment security was fine, the increasing population density and waste water emissions, with other environmental factors threatening urban water security, can not be ignored. Thus urban water environment problem remains to be solved.
关 键 词:水环境安全 DPSIR模型 水环境 安全评价 指标体系 天津市
分 类 号:TV213.4[水利工程—水文学及水资源]
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