南宁1996-2005年生态安全评价研究

Research into Urban Ecological Safety Evaluation of Nanning

该文根据压力-状态-响应概念模型,构建了一个城市生态安全评价指标体系和综合评价模型,并从时间尺度上(1996-2005年)对南宁生态安全的现状和发展趋势做出了评价.根据计算结果,南宁近十年的生态安全水平总体呈上升趋势,1996—2001年处于不安全状态,2002年、2004年处于临界安全状态,2003年、2005年处于安全状态,这表明南宁2002年以来在城市建设方面所做的努力使其生态安全水平有了较大提高.通过分析压力、状态、响应3项指标指数与城市生态安全指数之间的关系,发现人文响应指标对南宁城市生态安全水平有直接影响.

Based on the Pressure- state- Response conceptual model, the study on Evaluation Index System of Ecological Security and comprehensive evaluation method are established. Then the application and development tendency on time scale （1996q2005） are evaluated. The calculating results show that the development tendency of Ecological Security tended to be increased in general in the recent decade. From 1996 to 2001, it was not in the security state. It is on the criticality safety state in 2002 and 2004. It shows that the hard work on the urban construction of Nanning enhances its Ecological Security development. Having analysed the relations of pressure, state, responding target indexs and the urban ecology security index, it＇s found that the response target has the direct influence upon the Nanningcity ecology security level.