摘要
以台州地区为例,采用层次分析法对地下水环境承载力进行评价。结果表明,台州地区地下水环境承载力属于中等水平。台州东西部地区影响地下水环境承载力的最大制约因素有所不同,西部主要受自然条件制约,东部则是社会条件。为提高台州地区地下水环境承载力,必须加强对地下水资源开发的统一管理,并且因地制宜加快调整产业结构,大力发展节水型产业。
The present article intends to introduce a case study result of groundwater environmental carrying capacity by taking Taizhou, Zhejiang, as an example. It is known that there is no uniform concept of groundwater environmental carrying capacity. On the base of conceptual studies proposed by former researchers, we define groundwater environmental carrying capacity as the maximum sustainable-development level of human society that a regional water environment can support under a certain period of time and technical level. In order to evaluate the groundwater environmental carrying capacity in Taizhou city, we have adopted a well-known method of analytic hierarchy process to build up three-grade-evaluation index system, which consists of the target layer, the rule layer and the index layer. The rule layer includes natural index and social index. The index layer is made of 10 indexes, which are aquifer thickness of groundwater, groundwater level, net groundwater charge, nature of unsaturated zone, topographic slope, treatment efficiency of discharged water, population density, per capita GDP, per capita groundwater extraction and water consumption per 10000 industrial production. The judgment matrix of AHP is used to get the weights of all indexes in the system. The geographic information system （GIS） is used to obtain the digital distributions of every index. The results of our study show that the groundwater environmental carrying capacity in Taizhou city ranges from 0.380 4 to 0.743 2. The average capacity is 0.548 1, which belongs to the medium level. The maximum constraint to groundwater environmental carrying capacity changes in different areas, which is natural index in west but social in east. In all areas of Taizhou City, it is necessary to accelerate industrial restructuring and strengthen the planning and management of groundwater. It is an effective way to develop water-saving industry, which can promote the sustainable development of economy, population and groundwater resources.
出处
《安全与环境学报》
CAS
CSCD
北大核心
2012年第5期151-154,共4页
Journal of Safety and Environment
基金
国家重点基础研究发展计划(973计划)项目(2010CB428805)
关键词
环境学
地下水环境承载力
台州地区
地理信息系统软件
层次分析法
environmentalology
groundwater environmental carryingcapacity
Taizhou City
GIS
analytic hierarchy process
