基于生态足迹法,引用生态压力指数、生态占用指数和生态经济协调指数3个概念构建了可持续发展评价模型,对郑汴一体化区域2002-2008年的人均生态赤字情况与可持续发展状况进行了研究。结果表明,郑汴一体化区域的人均生态赤字呈前期上涨后期回落的趋势,说明郑汴一体化区域目前有向可持续发展状态转变的迹象;可持续发展指数由2002年的0.49降到2003年的0.27,之后开始稳步增长,由持续性较差等级(2级)逐步上升到2008年的持续性很好等级(5级),说明郑汴一体化区域正逐步走向可持续发展的状态。
Based on the ecological footprint method, this paper introduced three concepts including ecological tension index, ecological occupancy index and ecological economic coordination index, constructed an evaluation model for sustainable development, and conducted research on per capita ecological deficit situation and sustainable development status of Zhengzhou - Kaifeng integrated region during 2002--2008. The result showed that:① The capita ecological deficit of Zhengzhou - Kaifeng integrated region presented a trend of rising in the early stage and falling in the later stage, which indicated that there was sign of state transition for sustainable development of Zhengzhou - Kaifeng integrated region recently ; ②Sustainable development index increased steadily since it dropped from 0.49 in 2002 to 0.27 in 2003, its gradually increasing from a bit bad sustainability grade (grade 2) to good sustainability grade (grade 5 ) indicated that Zhengzhou- Kaifeng integrated region was gradually towards the sustainable development state.