脆弱性是可持续发展的一个时间函数和空间函数,区域经济发展过程是一个不断抑制脆弱性实现螺旋式上升的过程,矿业城市经济发展的脆弱性具有典型的"压力(P)-敏感(S)-弹性(E)"的特征。据此,构建了一个矿业城市经济发展脆弱性评价模型,结合主成分分析法和熵值法,选取东北地区矿业城市作为案例进行评价,从脆弱性的视角来研究矿业城市经济的可持续发展。评价结果表明:(1)脆弱度在地域上主要集中分布于辽宁省;(2)脆弱度在资源类型上具有煤炭类〉综合类〉冶金类〉油气类的趋势;(3)脆弱度随其生命周期的推进逐渐增大;(4)城市经济发展自身的弹性度对决定其脆弱性程度的作用更为显著。
Based on the understanding of the vulnerability,the sustainable development and their relationships,this article considered that:(1) the vulnerability is a temporal and spatial function for the sustainable development,and regional economic development is a process that suppresses the vulnerability continually;(2) the economic development vulnerability of the mining cities presented the typical "pressure(P)-sensitive(S)-elasticity(E)" characteristics.On this point,the article constructed a vulnerability assessment model,combined with Entropy Value Method and Principal Component Analysis,and chose the mining cities of Northeast China to make a research.The result shows that:(1) most mining cities with high vulnerability are spatially concentrated in Liaoning Province.(2) The mean vulnerability scores of mining cities based on different mineral resources have a descending trend in the order of coal resources type 〉integrated mineral resources type 〉metal resources type 〉petroleum resources type.(3) The vulnerability scores have a tendency to increase with the devolvement of mining city's life circle.(4) The elasticity of the urban economic development plays an important role in determining the degree of the vulnerability.Finally,the authors gave suggestions on how to lower the vulnerability of the regional economic development,and to achieve the sustainable development of mining cities,by reducing the pressure,decreasing the sensitivity and enhancing the flexibility.