中文摘要：

基于重庆市2000年、2005年、2010年的3期遥感解译的土地利用矢量数据,通过分析区域生态系统服务价值理论和方法,参考并修正国外学者Costanza和国内谢高地的生态系统服务价值系数,对重庆市2000—2010年的土地利用二级分类指标进行了4大类17种小类的生态系统服务价值的估算,采用基于GIS的生态系统价值密度、ESV保持率等方法指标反映研究区10年来的生态系统服务价值时空变化特征,研究结果表明：①重庆市2000年、2005年和2010年各类生态系统年提供总服务价值量分别为4285.39、4490.29和4621.18亿元,就生态系统而言,林地生态系统提供的总服务价值最高,2010年占总价值的69.03%;其次是水域和草地,分别占总价值的14.35%和9.12%;就生态系统服务类别排序为调节服务（71.31%）〉支持服务（19.01%）〉供给服务（5.87%）〉文化服务（3.81%）;②2000—2010年重庆市生态系统服务价值量总体呈不断上涨的时序变化趋势,增幅达到7.27%;生态系统服务价值保持率为1.078,虽然城市建设占用了大量的农田生态系统,但单位面积生态系统服务价值较高的水域和林地面积的ESV价值增幅明显;③生态系统服务价值密度最高的空间分布上呈＂西低东高,一轴两翼＂的格局,中部的垫江县生态价值密度最低,主要受较为单一的农田生态系统影响;④研究区的ESV与GDP在空间分布和时序上的差异明显,2010年重庆的地均ESV为5.60万元·hm^-2,高于全国的平均值;人均ESV为1.60万元,低于全国的平均值;人口密度大是造成人均ESV低的主要原因;2010年人均ESV与人均GDP的比值为1∶1.72,低于全国的平均接近1∶1的比值,表明重庆市的生态系统服务价值相对国民生产总值的相对不足.

英文摘要：

In reference to the ecosystem service value coefficient proposed by Costanza and Gaodi Xie,this work analyses the theory and method of regional ecosystem service value and then evaluates the ecosystem service values of 4 general types and 17 unit types of land use sub-levels during 2000—2010 on the basis of RS interpretation of land use vector data in 2000,2005 and 2010 in Chongqing. The ecosystem value density of GIS and the ESV retention rate are employed as indicators to reveal the temporal and spatial variation characteristics of ecosystem service value in these 10 years. The resultsshow that in 2000,2005 and 2010,the total service values for all kinds of ecological systems are 428.539,449.029,and 462.118 billion RMB yuan,respectively. Forest ecological system accounts for a highest proportion of 69.03% in the total service value in 2010,followed by water（ 14. 35%） and grass（ 9.12%）. Ecosystem service in category is in the order of regulation service（ 71.31%） support service（ 19.01%） supply service（ 5.87%） cultural services（ 3.81%）. The total ecosystem service value exhibits an increasing trend with an annual increase rate of 7.27%,and the retention rate of ecosystem service value is 1.078. Although urban construction occupied large amount of farmland ecosystem,the ESV values of water area and land area with large ecosystem service value per unit area enhance significantly. Density of ecosystem service value displays an ＂east higher than west,one axis accompanied with two wings＂ characteristic,i.e. the central Dianjiang County has the lowest density of ecological value which is likely resulted from the relatively single farmland ecosystem. The temporal and spatial distributions of ESV and GDP have remarkable difference. In 2010,ESV in Chongqing is 56 thousand RMB yuan·hm^-2,higher than the national average value,while ESV per capita is 16 thousand RMB yuan,lower than the national average value,which mainly be ascribed to the large population density. In 2010,the ratio of the ave