Evaluation on Values of Forest Ecosystem Service Function in the Natural Forest Protection Area in Shanxi Province

Based on long-term observation data of forestry ecosystem positioning research station, forest benefit monitoring data,investigation data of forest resources,public data from the authorities,the evaluation model of forest ecosystem service function evaluation standard(LY/T₁721-2008) was adopted to evaluate the values of the forest-land forest ecosystem service function in the natural forest protectoin area in Shanxi province in 2014. The results showed that their values was 630.73 billion yuan per hectar among them, water conservation value accounted for 27.95%, biological diversity protection value for 18.40%,soil conservation value for 17.94%,fixing carbon and releasing oxygen value for 13.93%, forest protection value for 7.29%, purifying environment valut for 6.77%, forest recreation value for 5.64%,and accumulation nutrients value for 2.09%. The values of the ecosystem services were in the following order:water conservation,biological diversity protection, soil conservation, fixing carbon and releasing oxygen,forest protection,purifying environment,forest recreation and accumulation nutrients.