资源型城市生态承载力对土地利用变化的响应

Response of Ecological Carrying Capacity of Resource-Type Cities to Changes in Land Use.

探讨了鞍山、抚顺和本溪3个资源型城市1996—2000年生态承载力的变化趋势、土地利用程度综合指数变化以及生态承载力对土地利用变化的响应。结果表明:鞍山、抚顺和本溪3市1996—2000年生态承载力隶属度呈上升趋势,但均属一般水平,2000年分别为0.60、0.47、0.49;鞍山、抚顺和本溪3市土地利用程度变化综合指数分别为0.82、4.04、1.10,鞍山、本溪土地利用强度低,抚顺土地利用强度高;鞍山、抚顺、本溪3市生态承载力与土地利用程度综合指数的变化呈正相关趋势,能够基本达到相互促进的发展模式。

Impact of changes in land use on environment of resource-type cities is significant. In order to improve ecological benefit, researches have been conducted on response of the ecological carrying capacity of the cities to changes in land use, and variation of the integrated index of land use in Anshan, Fushun, and Benxi from 1996 to 2000. Results show a rising trend, though still quite normal, of the ecological carrying capacity of the three cities from 1996 to 2000. In 2000, the ecological carrying capacity of Anshan was 0.60, of Fushun 0.47, and of Benxi 0.49. Integrated index of the change in land use was 0.82 in Anshan, 4.04 in Fushun, and 1.10 in Benxi. Anshan and Benxi were low, but Fushun high in land use intensity. Their ecological carrying capacity was positively correlated with their integrated index of the change in land use, basically forming a mode of mutual promotion.