南京市域土地利用变化对生态环境影响的圈层结构分析  

Effects of land use changes in Nanjing city on eco-environment

作　　者：刘云霞[1] 陈爽[1] 姚士谋[1] 彭立华[1] 

机构地区：[1]中国科学院南京地理与湖泊研究所

出　　处：《南京林业大学学报（自然科学版）》2008年第2期29-33,共5页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家自然科学基金面上资助项目(40571055)

摘　　要：在对南京市三个时间段土地利用现状分析的基础上,将南京市域分为主城区、都市发展区、都市外围区三个圈层,定量分析不同圈层土地利用的生态环境质量指数与生态系统服务价值,并对其演变规律进行对比。研究表明,1986—2002年间,市域整体生态环境质量与生态系统服务价值变化不大,但主城总体生态环境质量及生态服务价值均明显下降;都市发展区衰减幅度较小;都市外围区略有上升。生态环境质量演变和生态服务价值演变的大体趋势基本一致,但变化幅度和速率有所不同。This paper analyzed the land-use changes in three concentric zones of Nanjing city from 1986 -2002, i.e. , the main city, near suburban area and the far suburban area. According to the index values of eco-environmental quality and ecosystem services function were calculated. The results showed that the values of two indices scarcely changed for the whole city, but the main city suffered a large decrease from 1986 to 2002. The near suburban area decreased at a relative low rate, and the far suburban area incieased gradually mean while. The general variation trend of the ecoenvironmental quality and ecosystem services value retained accordant, at the same time, but they were different in extent and velocity. This study had great significance in quantitatively assessing and fully understanding the ecoenvironmental effects of urbanization in concentric urban zones.

关 键 词：土地利用变化 生态环境 生态服务价值 南京市 

分 类 号：Q149[生物学—生态学] S718.5[生物学—普通生物学]