城市化发展引起的土地利用方式和生态系统质量的变化逐渐引起人们的重视,人类的社会经济活动已经对生态系统的结构和功能造成了很大影响。以上海市为研究对象,从生态系统结构、功能和胁迫3个方面构建生态系统质量评价模型,研究了2000年、2005年、2010年3个时期生态系统质量变化、空间差异及其影响因素。结果表明,崇明县和中心城区生态结构指数最高;崇明县功能指数最高,中心城区最低;崇明县受城市化胁迫最小,中心城区胁迫最大。崇明县是上海市生态系统质量最好的区域,3个时期生态系统质量指数均处于1级水平,中心城区生态系统质量最差。提供了一种生态系统质量评价的方法,研究结果揭示了上海市2000-2010年生态系统质量演变趋势,可以为上海市生态系统管理提供参考依据。
It gradually attracted people's attention that the development of urbanization caused land-use changes and ecosystem changes.Human social and economic activities had a great impact on the structure and function of ecosystem.In this paper,based on ecosystem structure,function and stress,Shanghai was taken as research object and an assessment model of ecosystem quality was designed to study the dynamics changes,spatial difference and influencing factors of ecosystem quality in 2000-2010.It turned out that Chongming County and central urban district had the highest indexes of ecosystem structure;Chongming County had the highest indexes of ecosystem function and central urban district was the lowest;in the evaluation of ecosystem stress,Chongming County was under least stress of urbanization,and central urban district was heavily urbanized.Chongming County had the best quality of all the districts in Shanghai,as its ecosystem quality indexes were at optimum level in the three stages.The ecosystem quality of central urban district was the worst.The research provided a method of ecosystem quality assessment.The results showed the dynamics changes and affecting factors of Shanghai ecosystem quality in 2000-2010.It can provided reference for ecosystem management.