区域土地利用变化的生态系统服务价值响应

Ecosystem Service Value Respond to Regional Land Use Change

随着城市化和社会经济的发展,研究土地利用变化对生态系统服务价值的影响,对于了解区域生态环境变化和促进社会经济的可持续发展有重要意义。根据晋城市2001-2010年土地利用数据,运用土地利用动态度指标对土地利用变化进行了分析;利用中国陆地生态系统单位面积生态服务价值当量表,结合晋城市经济发展水平进行系数修正,对晋城市10年内的生态系统服务价值的时空变化进行了研究;并运用主成分分析法对生态系统服务价值变化的驱动力进行了分析。研究结果表明,晋城市土地利用变化趋势是林地和建设用地增加趋势,其余用地呈减少趋势;晋城市生态系统服务价值总体呈增加趋势,从2001年的108.65亿元增加到2010年的111.82亿元,年均增加0.32%,林地面积的增加是区域生态系统服务价值增加的最主要原因;晋城市生态系统服务价值空间差异明显,社会经济发展引起的土地利用变化是形成生态系统服务价值空间差异主要原因;晋城市生态系统服务价值变化的驱动力主要是经济发展因素和农业发展因素。基于土地利用变化的区域生态系统服务价值研究有助于完善区域生态系统服务功能,建立可持续的土地利用模式,实现社会、经济和生态的可持续发展。

This paper studied impact of land use change on ecosystem service value which was important to understand regional ecological environment change and promote sustainable development of society and economy. Based on the data of land use in Jincheng City from 2001 to 2010,the paper analyzed land use change by using the indicator of land use dynamics. The spatial and temporal variations of ecosystem service value in Jincheng during 10 years were researched by using ecosystem service value per unit area of different terrestrial ecosystem in China,combining with coefficient correction using the level of economic development. The results showed:( 1)The trend of land use change was that forest land and construction land increased and remaining land tended to decrease.( 2) The ecosystem service value in Jincheng City showed an increasing trend,which increased from 10. 87 billion RMB in 2000 to 11. 18 billion RMB in 2010 by an average annual increase of 0. 32%. The addition of forest area constituted the most important reason why regional ecosystem service value increased.( 3) The spatial difference of ecosystem service value were significant,which was mainly caused by land use change resulted from socio-economic development. Analysis on ecosystem service value based on regional land use change can help to improve regional ecosystem service and establish sustainable patterns of land use,and has a guiding significance for sustainable development of society,economy and ecology.