渭南市城区南部台塬及侵蚀沟壑森林生态系统服务价值评估

按照森林生态系统服务价值核算框架,参考《LY/T1721-2008森林生态系统服务功能评估规范》提出的计算公式,采用替代工程法、市场价格法、森林蓄积量生物量转换法、替代价格法等方法,对2015年渭南市城区南部台塬及侵蚀沟壑森林生态系统服务实物量及价值量进行初步评估。结果表明,当年该区域森林生态系统服务总价值为3.78亿元,其中涵养水源价值1.71亿元,保育土壤价值3 851.3万元,固碳释氧价值3 976.65万元,净化大气环境价值为890万元,生物多样性保护价值为1 225万元,提供有形产品价值1.07亿元。

Forest Ecosystem Service Valuation at Loess Tableland and Erosion Gully In Weinan City

Ecosystem service functions of forests at loess tableland and erosion gully in Weinan City, Shannxi Province was preliminarily valuated in kind and in value for 2015 by using alternative engineering method, market price method, forest volume conversion to biomass, and alternative price method in line with the production accounting framework for forest ecosystem service and in reference with the formula in Forest Ecosystem Service Evaluation Guidelines (LY/T1721-2008). The result showed that the forest ecosystem services there was totally valuated at 378 million yuan in the year of 2015, of which water conservation was valued at 171 million yuan, soil conservation had the value of 38.513 million yuan, carbon dioxide absorption and oxygen release was assess at the value of 39.7665 million yuan, air purification was evaluated at 8.9 million yuan in value, biodiversity conservation was valued at 12.25 million yuan and economic forest products were valued at 107 million yuan.