潮州市中心城区绿色空间演变及其生态效应分析

An Analysis of the Green Space Evolution and Ecological Effect on the Central City of Chaozho

绿色空间因具有显著的生态功能已成为评估城市人居环境的一种有效方法.基于潮州中心城区1996年、2006年和2016年的遥感影像,计算潮州中心城区生态环境评价指标和生态环境状况综合指数,探析潮州市近20年绿色空间演变生态效应.得出如下结论:(1)20年来,潮州中心城区绿色空间总面积呈持续减少的趋势;(2)20年来,潮州中心城区建设用地一直处于扩张态势,其他地类面积则持续递减;(3)20年来,潮州中心城区生态环境状况总体呈下降趋势,生态环境评价为一般.

Urban green spaces have remarkable ecological functions and have become an effective method to evaluate urban enviroment.Based on the remote sensing images of the city of Chaozhou in 1996,2006 and 2016,the paper calculates the index of ecological enviroment assessment and the comprehensive index,analy sing the ecological effect of Chao zhou green spaces in recent 20 years.Conclusions:(1)In the past 20 years,the total area of green space in the central city of Chaozhou has been decreasing continously.(2)In the past 20 years,construction land in the central city of Chaozhou has been expanding,while other areas have been decreasing.(3)In the past 20 years,the state of ecological enviroment in central city of Chaozhou has generally been declining,and all of the ecological evaluation level is not so good