基于水污染总量控制的土地利用管控分区——以无锡市为例  

Land Use Regulation Zoning for Controlling the Total Amount of Water Pollutants: A Case Study of Wuxi City

作　　者：欧维新[1] 连鹏[1] 逄谦 

机构地区：[1]南京农业大学土地管理学院,南京210095

出　　处：《自然资源学报》2014年第1期1-12,共12页Journal of Natural Resources

基　　金：国土资源部公益性项目(200811087);中央高校基本科研业务费专项资金项目(KYZ201166)

摘　　要：分区管控研究是水污染控制研究的热点,基于水污染控制的土地利用管控分区,是实现水污染"源头控制"的有效途径之一。论文从土地利用变化的水环境效应出发,立足区域水污染总量控制目标,综合考虑污染负荷允许排放量、水质净化功能和排污地段的敏感性程度等约束条件,探讨了以水污染总量控制为目的的土地利用管控分区方法,尝试将区域水污染分配任务量控制要求,转化为其对社会经济、土地利用等的约束与调整。研究以无锡市为例,采用目标函数熵值法对水污染物总量进行公平分配,通过各评价单元所需控制污染减排量、水质净化功能价值以及环太湖不同地段保护需要的三维等级解析,将无锡市划分为不同污染控制程度的6个土地利用管控区,并根据不同管控区土地利用-水污染输出特征,提出相应的管控措施。With the increasing serious water pollution problems, ＂water pollution source control＂ as a most effective approach is needed indeed. Based on the existing research, most methods focus on water body governance and treatment, and seldom integratively consider the water body with regional land use conditions which are actually related to the capability of the water pollutants retention and discharge. This paper aimed to discuss how to integrate water pollution with land use, and find land use regulation zoning method for controlling the water pollution. We take Wuxi City as an example for its typical water pollution issues within Taihu watershed, and five steps were taken to fulfill the land use regulation zoning. 1） Employed objective function-entropy method to fairly allocate the total water pollutants for controlling （the allowable discharge amount） in each administration unit--town, and the factors of population, economic, land area and distance of the evaluation unit to the Taihu Lake boundary were involved in this method. 2） Analyzed the effect of land use types on water pollution based on existing research results （the actual discharge amount）, and then identified the pollution controlling task amount （the actual discharge amount minus the allowable discharge amount） for each evaluation unit. 3） Evaluated the purification functions of each land cover type based on available literatures. 4） Utilized buffer zone method to classify the sensitivity of pollutants drainage location. 5） Established three-dimensional quadrant analysis method considering the pollution controlling task amount, water purification function and the sensitivity locations, and prioritized the different regulation zones for water pollution control. The results showed that, according to the water pollution regimes, six zones can be classified for different land use regulation policies in the study area. And the limitation pollutants is phosphorus, the central-north of Wuxi and north of Yixing should be regulated st

关 键 词：水污染 总量控制 土地利用管控 分区 无锡市 

分 类 号：F301.24[经济管理—产业经济]