苏南丘陵区典型森林生态系统服务价值估算

针对苏南丘陵区杉木、马尾松、毛竹、栎林等4种典型森林生态系统,实测了其主要的生态系统服务功能,运用多种生态经济学方法估算了4种林分的生态服务价值。生态服务价值包括直接使用价值和间接使用价值,间接使用价值包括气体调节、涵养水源、保土固肥、防止水库淤积、营养物质循环、净化环境价值等。研究区杉木、马尾松、栎林、毛竹4种林分的生态系统服务价值中,间接经济价值分别是其直接经济服务价值的1.82、2.12、3.16、4.04倍,单位面积的森林生态系统服务价值分别为192397.30、113262.69、88350.51、103289.69元·hm-2·a-1。在区域研究中,根据地方实测的数据进行估算,能提高计量森林生态服务功能价值的精度。

Ecosystem value evaluateon for typical forest ecosystem in hilly region of southern Jiangsu province

We conducted a study on ecological service for typical forest ecosystem in the hilly region of Southern Jiangsu Province,China in 2008.Our main objective was to know the practical ecological functions and to evaluate the ecological values of forest ecosystem more accurately.Based on the practical monitoring,we applied ecological economic methods to evaluate the ecological values of typical forest ecosystem as Quercus acutissima,Pinus massoniana Lamb,Cunninghamia lanceolata,and Phyllostachys pubescens.The ecological values include direct and indirect value,and the indirect value includes the value of gas regulation,water storage,soil and fertility conservation,reservoir deposit reduction,nutrient circulation and environmental decontamination.The ecologic values of Quercus acutissima,Pinus massoniana Lamb,Cunninghamia lanceolata,and Phyllostachys pubescens were 88 350.51,113 262.69,192 397.30,103 289.69 Yuan/hm2·yr respectively,and the indirect value were 3.16,2.12,1.82,4.04 times of direct value respectively.In regional research,using the local data can increase the precision of calculating the ecological values of forest ecosystem.