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喇叭沟门林区森林系统生物多样性生态功能与北京市民生活密切相关 ,保护好该区生物多样性尤为重要 .通过对喇叭沟门林区森林生物多样性经济价值计算 ,其直接使用价值为 845 6 7万元 ,间接使用价值为 2 491 8万元 ,生物多样性所产生的生态功能价值远远超出其产生的实物价值 ;林区森林植被系统每年可吸收CO2 38万t,释放O2 2 8 4万t,减少土壤侵蚀 48 4万t,可吸收SO2 1 6 34 5t.
The biological diversity of forest system in Labagoumen forest area is closely related to the life of Beijing citizens, and it is particularly important to protect the biodiversity in this area.By calculating the economic value of forest biodiversity in Labagoumen forest area, the direct use value is 845 670 thousand yuan and indirect use value of 49.12 million yuan. The value of ecological functions produced by biological diversity far exceeds the actual value it produces. The forest area forest system can absorb 380,000 tons of CO2 per year and release O2 2 8 40,000 t, 48,400 t of soil erosion reduction, SO2 absorption of 1 6 34 5t.