浙江省森林生态服务价值估算及其空间变异分析

Measurement of Forest Ecosystem Service Value and Analysis of Its Spatial Variation in Zhejiang Province

森林生态服务价值的研究对提高人类环境保护意识、制定生态补偿标准、构建绿色GDP核算体系等有十分重要的意义。本文首先基于卫星影像、地理数据、站点记录等,结合GIS、RS技术,估算了浙江省森林2010年NPP、土壤保持量、蒸散量;然后,使用能量替代法、影子工程法、机会成本法等估算了浙江省森林2010年的固碳释氧价值、有机物生产价值、水源涵养价值、营养物循环价值、水土保持价值;最后,对生态服务价值的构成及空间变异规律进行了分析。分析表明,森林生态服务价值主要受到森林覆盖面积影响:森林覆盖面积越大,生态服务价值总量越大;单位面积不同植被类型所能提供的不同类型生态服务价值大小存在差异;单位面积森林ESV与GDP、高程均呈现负相关。

The research of forest ecosystem service value is very important for the construction of green GDP,the formulation of ecological compensation standards,the improvement of people's environmental protection consciousness,and so on.In this paper,based mainly on satellite imagery,geo-spatial data,site record,and combined with GIS and RS technology,we firstly calculated NPP,evapotranspiration,and soil conservation amount of Zhejiang's forest ecosystem in 2010.Then,by using the energy substitution method,the opportunity cost approach,and the shadow engineering method,we calculated the value of carbon sequestration,oxygen release,organic production,nutrient recycling,water conservation,and soil conservation of Zhejiang's forest ecosystem in 2010.Finally,the spatial variation of ecosystem service value was analyzed,and the analysis results indicated that Forest ecological service value is mainly influenced by the area of forest:the greater the area of forest,the greater the total ecosystem service value;ESV per unit provided by different type of forest are different;Forest ESV per unit is negative related with GDP and elevation.