%0 Journal Article
%T Evaluation of ecological security in Tongling City,Anhui,China<br>安徽铜陵市生态安全评价研究
%A WANG Naiju
%A ZHOU Taofa
%A <br>王乃举
%A 周涛发
%J 环境科学学报
%D 2012
%I 
%X Tongling city is an important production base of non-ferrous metals.Dramatic ecological pressures from long-term mining,smelting and processing have made eco-security a very serious problem.This study develops the evaluation index system and the urban eco-security pressure and response index model.Set Pair Analysis (SPA)-variable fuzzy set (VFS) comprehensive analysis method are adopted for timing evaluation on eco-security in Tongling city.Evaluation result shows that:1Since 2000,the ecosystem of Tongling city has been in less safety or critical safety level,the security level are generally low.As a turning point,eco-security improved from critical safety to less safety in 2003.2The change trend of pressure and response index reflected the eco-security mechanism between subsystems.Since 2000,ecological control measures in Tongling city reduced the system pressure,while because of the insufficient environmental resources,eco-security kept at the lower level.3Main factor affecting the security of the system is comprehensive factor of eco-environmental stress,comprehensive factor of resource constraints,and comprehensive factor of environmental input response.
%K eco-security
%K SPA-VFS
%K pressure and response index
%K Tongling City<br>生态安全
%K 集对分析-可变模糊集
%K 压力和响应指数
%K 铜陵市
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=A0E8C791015761BE7275B24D89823C8E&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=F3090AE9B60B7ED1&sid=E4042ACC493C7AB9&eid=16D0D605A1E41A33&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=47