Study on ecological security evaluation of the Chaohu Lake Basin
TIAN Jiong1, WANG Zhen-xiang2, WANG Cui-ran1
1. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210093, China; 2. Environmental Protection Agency of Anhui Province, Hefei 230061, China
At present,ecological safety problem of the Chaohu Lake Basin is very serious,hindering the sustainable development of society and economy.We proposed the Chaohu Lake Basin ecological security assessment framework model and index system based on water environment and water ecology by using the data of society and economy,water environmental quality and aquatic ecosystems in the Chaohu Lake Basin,and applying driving force-pressure-state-impact-response(DPSIR) model.We also assessed ecological security of the Chaohu Lake by using fuzzy entropy matter-element evaluation method.The results show that overall,the Chaohu Lake Basin is in a moderate risk status of ecological safety in 2003 and 2007;the changes of water quality of the environment and aquatic ecosystem were a serious threat to the basin ecological security;the TP concentration,NH3-N concentration and TN concentration in water were the most critical factors determining ecological security of the Chaohu Lake Basin.
田炯1, 王振祥2, 王翠然1. 巢湖流域生态安全评价研究[J]. , 2011, 30(6): 650-658.
TIAN Jiong1, WANG Zhen-xiang2, WANG Cui-ran1. Study on ecological security evaluation of the Chaohu Lake Basin. , 2011, 30(6): 650-658.