白云山森林生态系统间接经济价值评估

使用市场价值法，影子工程法，机会成本法和替代法等对白云山1800hm^2森林生态系统的功能价值进行经济评估，评估结果表明，白云山总的生态价值为14580．17万元，其中活立木生产量的价值1423．58万元，涵养水源价值和保护土壤价值为460．66万元，固定二氧化碳和放出氧气的价值为3623．54万元，动物栖息地和生物多样性保护价值为632．47万元，林分持留N、P、K养分价值133．52万元，卫生保健价值为1737万元，农业粮食产量增加价值为2338．54万元，降解SO^2和防治病虫害17．33万元，旅游价值4213．53万元。

A study on the indirect valuationof the forest ecosystem in Baiyun Mountain

In this paper, the market valuation method, shadow engineering method, opportunity cost method and substitute expense method are used to value the functions of the forest ecosystem in Baiyun Mountain. The valuation results reveal that the total ecological value is estimated up to 145.80 million yuan per annum, of which, about 14.24 million yuan is of the output of standing trees, about 4.61 million yuan of water conservancy and soil conservation , about 36.24 million yuan of carbon fixation and oxygen production, about 6.32 million yuan of the animals' habitat and biodiversity protection, 17.37 million yuan of hygiene, about 1.34 million yuan of nutrient retention for N, P and K, about 0.17 million yuan of SO2 degradation and control of diseases and pests, about 23.39 million yuan of the increase of grain output, and about 42.14 million yuan of tourism.