陕西省生态系统服务功能价值评估  

Ecosystem Service Function Valuation of Shannxi Province

作　　者：焦彩霞[1] 郑光辉[1] 张志宏[1] 

机构地区：[1]南京信息工程大学遥感学院,南京210044

出　　处：《农机化研究》2007年第12期32-35,共4页Journal of Agricultural Mechanization Research

基　　金：南京信息工程大学科研启动项目"基于遥感和GIS的湿地生态资产研究"资助

摘　　要：依据IGBP土地覆盖分类遥感数据和中国县域行政区划图,参照中国陆地生态系统单位面积服务功能价值表,估算了陕西省各种生态系统服务功能价值,并分析了其空间分布特征。结果表明,陕西省生态系统服务功能价值为2 473.29×108元/年,约占全国生态系统服务价值的4.41%。各类生态系统的生态服务价值对总价值的贡献率差异显著,森林的贡献率最高,其次是草地和农田,水体最低。生态系统服务功能价值构成中,土壤形成与保护价值最高,食物生产价值最小。陕西省三大自然地理区域的生态系统服务功能价值空间差异明显,陕南秦巴山地的生态价值最大,其次是陕北黄土高原,关中平原最小。Based on the lkm IGBP global land cover dataset and the China administrative map, according to the ＂table of Chinese Ecosystem Services Value of Unit Area of Different Ecosystem Types＂ which was established by China scholars, this paper calculated the value of ecosystem services in Shannxi Province and analyzed its spatial distribution characteristic. The results indicated that ecosystem services function value of Shannxi Province is 2473.29×10^8 RMB/year, accounting for 4.41% of annual ecosystem services value of China. The ecosystem services value of forest, grassland, farmland and water respectively was 1718.72×10^8 RMB, 391.25×10^8 RMB, 343.39×10^8 RMB, 19.93×10^8 RMB annually. Among Shaanxi Province ecosystem services, value of soil formation and disposition provided by ecosystems was the highest and value of food produce was the lowest. Space difference of Shannxi ecological value was very obvious, the ecological value of Qinba Mountains, Loess Plateau of Northern Shaanxi and Guanzhong plain was 1028.11×10^8 RMB, 879.72×10^8 RMB and 565.46×10^8 RMB.

关 键 词：生态学 生态系统服务功能 理论研究 生态价值 陕西 

分 类 号：Q149[生物学—生态学]