建阳市森林生态系统服务价值动态评估

Dynamic Evaluation of Forest Ecosystem Services Value In Jianyang City

以建阳市森林生态系统为研究对象,结合LY/T 1721—2008森林生态系统服务功能评估规范标准化计算公式与服务价格,建立建阳市森林生态系统服务价值评估指标体系,量化建阳市森林生态系统服务价值动态。结果表明:1990、1995、2000、2005、2010年建阳市森林生态服务总价值分别为928678.50、1580746.74、1668571.39、1685109.94、1749908.04万元,1990—2010年建阳森林总价值逐渐上升,不同类型的森林服务价值则表现出各自的变化规律与波动幅度。1990—2010年20 a间森林生态服务总价值增加821229.54万元,年平均增长率为4.42%,其中涵养水源、保育土壤、生物多样性保护价值贡献率最大,占森林生态服务总价值的81%以上。

Taking forest ecosystem in Jianyang as objects ,the dynamics of the Jianyang forest ecosystem service value were quantified by establishment assessment index system of forest ecosystem service value in Jianyang ,combination with formulae and prices of the Specification for Assessment of Forest Ecosystem Services in China （ LY/T 1721—2008 ）.The results showed that：the total ecosystem service values of Jianyang forest was 928678.50 ,1580746.74 ,1668571.39 ,1685109.94 ,1749908.04 ten thousand yuan in 1990 , 1995,2000,2005 and 2010 respectively,the total ecosystem service values of forest kept increasing from 1990 to 2010.However,dif-ferent trends and degrees were shown up on different services.The forest ecosystem service value increased 821229.54 ten thousand yuan from 1995 to 2010 ,the year of average increase rate was 4.42%,of which the contribution rate of water conservation ,soil con-servation and fertility maintenance and biodiversity protection value was the largest ,accounting for 81%of the total value.