南岭国家级自然保护区森林生态系统服务价值评估

Valuation of Forest Ecosystem Services of Nanling National Nature Reserve

森林生态系统具有重要的生态功能,评价森林生态系统服务功能的价值已成为当前生态学与生态经济学研究的前沿课题。本研究根据森林生态系统服务价值的计算方法,估算了南岭国家级自然保护区森林生态系统7项服务价值总量为70 348万元/年。在森林生态系统各项服务功能价值的贡献之中,其大小顺序依次为:固碳释氧>保育土壤>净化大气环境>生物多样性保护>涵养水源>积累营养物质>森林游憩。固碳释氧价值以20 846万元/年居第1位,占总价值的29.63%;其次为保育土壤的价值,占总价值的24.67%,第三为净化大气环境,占总价值的22.55%,第四为生物多样性保护,占总价值的14.51%,这四项合计占到91.36%,而涵养水源、积累营养物质和森林游憩这三项只占很小比例。

The forest ecological system fulfills many important ecological functions.Researches on the analysis and valuation on forest ecosystem services are at the cutting edge of current ecology and ecological economics.Based on the calculation method of forest ecosystem service value,7 forest ecosystem services of Nanling National Nature Reserve were evaluated,totaling 703.48 million yuan/year.In terms of the contribution size of the service value of forest ecosystem,carbon fixation and oxygen release came as the greatest one,followed by conservation of soil,purification of the air,biodiversity conservation,conservation of water,accumulation of nutrients,and forest recreation.With its value of 208.46 million yuan,carbon fixation and oxygen release ranked first,accounting for 29.63% of the total value,followed by conservation of soil 24.67% of total value,purification of the air 22.55% of the total value and biodiversity conservation 14.51%.Those 4 services made up 91.36% of the total value while the other 3 services ranging from conservation of water,accumulation of nutrients to forest recreation were merely a small proportion.This is because the Nanling National Nature Reserve is essentially a large oxygen bar.The above-mentioned ecosystem valuation method contributes to the understanding of the overall value of the forest ecosystem as well as the implementation and advancement in the regional sustainable development strategy.