Abstract:
Forests are the most important multi-functional ecosystems on earth which not only provides various physical products for human society, but also contains tremendous ecological value. To calculate the ecosystem service value of carbon fixation and oxygen release in the forest of Dianchi Lake Basin, the volume-derived biomass method, carbon tax method and oxygen production cost method were applied based on the forest resources survey data of Dianchi Lake Basin in 2008. The results showed that the ecosystem service value of carbon fixation and oxygen release was 331.576×10
7 Yuan per year, of which the service value of carbon fixation was 188.452×10
7 Yuan per year and the service value of oxygen release was 143.124×10
7 Yuan per year.
Pinus yunnanensis had the highest service value of carbon fixation and oxygen release among all the vegetation types in Dianchi Lake Basin, which was 39.649×10
7 Yuan per year. And Bambusoideae had the strongest ability of carbon fixation and oxygen release in per unit area, with service value of carbon fixation and oxygen release being 50 409.519 yuan per hectare per year. At present, the area of Bambusoideae in Dian Lake Basin is very small. Increasing Bambusoideae planting area can be used as a forest reconstruction plan and to improve the service value of carbon fixation and oxygen release in forest ecosystem in the future.