邛海流域水环境承载力分析与调控对策  

Analysis on water environment carrying capacity of the Qionghai Lake basin and its regulation countermeasures

作　　者：李新[1] 石建屏[2] 单倩倩 罗珊 史科 Li Xin;Shi Jianping;Shan Qianqian;Luo Shan;Shi Ke(School of Resource and Environmental Enginering,Mianyang Teachers’CoUege,Mianyang 621000,China;Department of Materials Enginering,Mianyang Occupation Technical College,Mianyang 621000,China)

机构地区：[1]绵阳师范学院资源环境工程学院,四川绵阳621000 [2]绵阳职业技术学院材料工程系,四川绵阳621000

出　　处：《供水技术》2020年第5期46-50,共5页Water Technology

基　　金：四川省教育厅重点自然科学基金项目(18ZA0262)。

摘　　要：为定量评估人口、经济等因素对邛海湖流域水环境的综合影响,建立水环境承载力指标体系和计算模型,应用层次分析(AHP)与指数评价相结合的方法,测算2013—2017年邛海流域水环境承载力,提出水质量和水资源的调控对策。研究表明:邛海流域经济压力指数由2.33逐年增加到3.01,GDP快速增长是水资源短缺的首要影响因素;总磷(TP)和总氮(TN)压力指数呈超负荷波动式增长,最大值为3.60和2.84,水体富营养化是水质量下降的潜在影响因素。水环境承载力呈现超载,水质量对其的影响比水资源更大。理论测算流域内最大承载量:人口为75.1万人、GDP为160亿元、TP为8 t、TN为160 t。In order to quantitatively evaluate the comprehensive impact of population,economy and other factors on the water environment of the Qionghai Lake basin,the index system and calculation model of water environment carrying capacity(WECC)were established.The method of combining analytic hierarchy process(AHP)with index evaluation was applied to calculate the water environment carrying capacity of the Qionghai Lake basin from 2013 to 2017,and the regulation countermeasures of water quality and water resources were put forward.The results showed that the economic pressure index of the Qionghai Lake basin had increased from 2.33 to 3.01 year by year,and the rapid growth of GDP was the primary factor affecting the shortage of water resources;the pressure index of total phosphorus(TP)and total nitrogen(TN)increased in an overloaded and fluctuating manner,with the maximum values of 3.60 and 2.84.Water eutrophication was a potential influencing factor of water quality decline.Water environmental carrying capacity was overloaded,and the impact of water quality was greater than that of water resources.The theoretical calculation showed that the maximum carrying capacity of the basin was population size of 751000,GDP of 16 billion RMB,TP of 8 tons and TN of 160 tons.

关 键 词：邛海流域 水环境承载力 指标体系 层次分析法 总磷 

分 类 号：X703[环境科学与工程—环境工程]