基于DPSIR-TOPSIS模型的和田连片特困地区生态安全综合评价

Comprehensive assessment of ecological security based on DPSIR-TOPSIS model in Hotan poverty-stricken areas

【目的】对典型连片特困地区——和田地区各县市的生态安全进行实证分析.【方法】以和田地区为研究对象,应用DPSIR模型,将变异系数法和TOPSIS模型相结合,计算各研究单元的生态安全值并对其进行评价,将生态安全综合指数与人均GDP和贫困村的比例进行空间耦合分析.【结果】研究区生态整体呈不安全状态,生态环境面临的压力较大;研究区的生态安全与人均GDP没有必然的联系,说明只注重发展经济不一定能促进环境的改善;研究区的贫困村比例越高,生态环境越差,两者呈显著相关,表明扶贫工作是消除贫困和改善当地环境的必由之路.【结论】和田地区生态安全呈不安全状态.

【Objective】This study was to empirically analyze the ecological security of the typical contiguous poor areas-Hotan counties.【Method】Using DPSIR model combined variation coefficient method and the TOPSIS model,the ecological security value of each research unit was calculated and evaluated.The spatial coupling analysis was carried out on the ecological security composite index and the proportion of the per capita GDP to the poor village【Result】The ecological situation of the study area was insecure,and the ecological environment was under great pressure.The ecological security was not necessarily related to the per capita GDP,which indicated that only focusing on economic development could not promote the improvement of the environment.The higher the proportion of villages was,the worse the ecological environment was so the anti-poverty work was the only way to eliminate poverty and improve the local environment.【Conclusion】The ecological security of Hotan was unsafe.