长江流域资源与环境 >> 2018, Vol. 27 >> Issue (09): 1977-1987.doi: 10.11870/cjlyzyyhj201809009

• 生态环境 • 上一篇    下一篇

基于PSR-灰靶模型的巢湖环湖防洪治理工程生态环境影响评价研究

熊鸿斌,周凌燕   

  1. (合肥工业大学资源与环境工程学院,安徽 合肥 230009)
  • 出版日期:2018-09-20 发布日期:2018-11-01

Using PSR-grey Target Model to Assess Ecological and Environmental Impact of Flood Regulation Project At Riparian Zone Around Lake Chaohu

XIONG Hong-bin,ZHOU Ling-yan   

  1. (College of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China)
  • Online:2018-09-20 Published:2018-11-01

摘要: 针对目前生态环境影响评价中存在的评价指标标准值难以确定以及权重确立存在较强主观性的问题,以巢湖环湖防洪治理工程为例,分析其生态环境影响特点并结合相关数据,以“压力—状态—响应”模型为理论基础,从压力、状态、响应3方面构建评价指标体系,采用熵权法确定各指标权重,借助灰靶模型对巢湖环湖防洪治理工程施工期产生的生态环境影响进行定量评价,以增强不同评价单元之间的可比性,并选取常用的综合指数法进行对比验证。研究结果表明:(1)肥西县、包河区、肥东县、巢湖市和庐江县的靶心度总得分分别为 0.779 0,0.761 0,0.616 1,0.688 8,0.600 1,对应的生态环境质量等级分别为良、良、一般、一般和较差;(2)对于压力层靶心度高,而状态层、响应层靶心度相对较低的肥西县,对排放的废弃物进行积极治理、加大环保资金的投入会取得良好的效果;相较于状态层、响应层靶心度,包河区、肥东县、巢湖市、庐江县压力层靶心度低,所以应尽可能合理安排施工场地和时间来减少废弃物的产生,从而改善该区域的生态环境质量状况。

Abstract: Aiming at the problems existing in the ecological environment impact assessment, such as partial evaluation indexes selection and difficulties in determining the standard value, taking Chaohu Lakeside’s regulation projects for flood control as an example. Based on the theory of pressure—state—response model, an evaluation index system was established which took consideration of the characteristics and degree of ecological environment impacts. The weights were determined using the entropy method. In order to enhance the comparability of different evaluation units, selecting grey model to make quantitative evaluation of the ecological environment impacts of Chaohu Lakeside’s regulation projects for flood control during the construction period. The comprehensive index method was used for comparative verification. Results showed that: 1) The approaching degrees of different evaluation units were different, the corresponding eco-environmental quality grades of Feixi County, Baohe District, Feidong County, Chaohu City and Lujiang County were good, good, general, general and poor. 2) Harnessing the waste discharged actively and increasing the input of environmental protection funds could achieve good results for Feixi County where the pressure layer had a higher approaching degree than that of state and response layer. The situation in Baohe District, Feidong County, Chaohu City, Lujiang County was just the opposite, so it would be useful to make reasonable arrangements for the construction site and time to reduce the emission of waste and improve the region’s ecological environment quality.

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