广州市土地利用生态服务价值测算研究  

Quantitatively Study on Landuse Ecosystem Service Value in Guangzhou City

作　　者：王璐[1,2] 杨洁[1] 胡月明[1] 李建华[1] 贾正雷[1] 

机构地区：[1]华南农业大学信息学院,广东广州510642 [2]中国科学院广州地球化学研究所,广东广州510640

出　　处：《水土保持通报》2009年第4期229-234,共6页Bulletin of Soil and Water Conservation

基　　金：国家科技支撑计划项目"县市级土地监测数据库建设与维护关键技术研究"(2008BAJ11B04);国家科技支撑计划项目"土地整理规划;设计技术研究"(2008BAB38B01)

摘　　要：定量研究经济发达地区土地利用与生态服务价值的变化情况,可为生态资源的合理定价与有效补偿,促进自然生态系统与社会经济系统的协调发展提供科学依据。利用单一土地利用动态度模型、土地利用程度综合指数和土地利用程度变化率分析了广州市土地利用的变化情况;参考Costanza及谢高地等人的生态服务价值系数,对广州市生态服务价值及其影响机制进行了定量研究;并应用相关性分析和敏感性分析方法探讨了生态服务价值与主要社会经济因子的关系。研究结果表明,广州市土地利用的生态系统服务价值总体呈逐年下降趋势,其中林地、水域和园地等地类的生态服务价值所占比例较大,土地利用结构和各类土地面积的变化直接影响到生态服务价值量的变化,广州市生态服务价值与总人口、GDP及城市化水平间均存在负相关关系,说明该市社会经济的发展是以生态服务价值的损失为代价的,生态系统服务价值的变化对人口、GDP和城市化水平总体上缺乏弹性。相对而言,对于人口的变动较为敏感,其次是城市化水平,对GDP变动的影响敏感性最弱。Quantitatively study on land use change and ecosystem service value in fast developing areas will be a scientific basis for reasonable pricing, effective compensation of ecological resources, and coordinated devel- opment of natural ecosystem and socio-economic system. Analysis of the changes of land use in Guangzhou City adopeted the single land use dynamic degree model, land use degree comprehensive index, and land use degree change rate. The coefficient of ecosystem service value proposed by Costanza and Xie Gaodi was used to Quantitatively study on land use ecosystem service value and its influence mechanism in Guangzhou City. The relationship between ecosystem service value and its major factors of social economy was explored by correlation analysis and sensitivity analysis. The results showed that total value of ecosystem service of land use in Guangzhou City decreases year by year, and ecosystem service values of forestland, water and garden land account for a higher percentage. The changes of land use structure and the area of different types of land cause a fluctuation in ecological service value. There is a negative correlation between ecosystem service value and population, GDP and urbanization degree, which indicates that the economy development is the cost of the loss of ecosystem service value. The change of ecosystem service value lacks elasticity with population, GDP and urbanization degree, comparatively speaking, it is sensitive with the population changes, then is ur- banization degree, and with no sensitive with GDP.

关 键 词：土地利用变化 生态服务价值 广州市 

分 类 号：F301.2[经济管理—产业经济]