基于均方差-TOPSIS模型的贵州水生态安全评价研究

Ecological Security of Water in Guizhou Based on Mean Square Deviation-TOPSIS Model

基于PSR概念框架,应用均方差法进行赋权,构建了贵州省水生态安全均方差-TOPSIS模型,并基于此模型研究了贵州省2005—2012年水生态安全。结果表明,基于构建的均方差-TOPSIS模型,(1)总体来看,贵州省2005—2012年的水生态安全状态处于较不安全和敏感状态,整体水生态安全形势不容乐观。(2)从因子层来看,2005—2012年,水生态安全的压力贴近度在波动中减小,经济社会高速发展给贵州省水生态安全带来巨大压力,状态和响应贴近度呈现稳定增长趋势,水生态安全的压力和响应是影响贵州省水生态安全的关键。

Based on the concept of PSR framework, mean square deviation method was used to empower, mean square deviation-TOPSIS model of water ecological security was established to study the ecological security in Guizhou over 2005--2012. The result showed that based on the mean square deviation-TOPSIS model, Q in gen- eral, the water ecological security status of 2005--2012 in Guizhou was in less security and sensitive state, and the overall water ecological security situation was not optimistic. ~ From the perspective of factor layer, the close degree of pressure decreased in waves, and high-speed economic and social development in Guizhou brought great pressure to ecological security. State and response degree showed a trend of steady growth. Pres- sure and response was the key to influence the water ecological security.