摘要
以天台县公益林生态系统为研究对象,依据《森林生态系统服务功能评估规范》(LY/T1721—2008),从涵养水源、保育土壤、固碳释氧、积累营养物质、净化大气环境、生物多样性保护和森林防护等7个方面对天台县公益林生态系统服务功能进行了定量评估。结果表明:天台县公益林生态系统服务功能物质量为涵养水源31382.86万t·a^(-1)、固土203.23万m^(3)·a^(-1)、保肥99962.49 t·a^(-1)、植被固碳19.66万t·a^(-1)、释氧52.67万t·a^(-1)、林木积累的营养物质7418.42 t·a^(-1)、吸收SO_(2)769.59 t·a^(-1)、滞尘157.11万t·a^(-1);制造负离子的总量为1842.05×10^(20)个·a^(-1)。生态服务价值量总计67.77亿元,以涵养水源(33.92亿元·a^(-1))、生物多样性保护(14.39亿元·a^(-1))、固碳释氧为主(9.36亿元·a^(-1))为主,合计占到生态系统服务功能总价值量的85.09%;森林防护(0.61亿元·a^(-1))价值最小,占总价值的0.90%。不同林分类型生态服务价值不同,单位面积生态服务价值量排序为阔叶林>针阔混交林>针叶林>竹林>灌木林。
According to the Standards for Assessment of Forest Ecosystem Service Functions(LY/T1721-2008),the ecosystem service functions of public welfare forests in Tiantai County were quantitatively evaluated from 7 aspects,including water conservation,soil conservation,carbon sequestration,oxygen release,nutrients accumulation,atmosphere environment purification,biodiversity protection and forest protection.The results showed that the ecosystem service quality was 313,828,600 t·a^(-1) for water conservation,2,032,300 m^(3)·a^(-1) for soil fixation,99962.49 t·a^(-1) for fertilizer conservation,196,600 t·a^(-1) for vegetation carbon fixation,526,700 t·a^(-1) for oxygen release,7418.42 t·a^(-1) for trees nutrient accumulation,769.59 t·a^(-1) for SO_(2)absorption,1571,100 t·a^(-1) for dust retention.The total amount of negative ions produced was 1842.05×10^(20) a^(-1).The total value of ecological services was 6.777 billion yuan,which mainly were water conservation(3.392 billion yuan per year),biodiversity protection(1.439 billion yuan per year),carbon fixation and oxygen release(936 million yuan per year),accounting for 85.09%of the total value of ecosystem services.The value of forest protection(61 million yuan per year)was the least,accounting for 0.90%of the total value.The ecological service values of different forest stand types were different,and the order of ecological service values per unit area was broadleaf forest>coniferous and broadleaf mixed forest>coniferous forest>bamboo forest>shrub forest.
作者
邹奕巧
蔡人岳
姚任图
尤誉杰
仇建习
娄明华
Zou Yiqiao;Cai Renyue;Yao Rentu;You Yujie;Qiu Jianxi;Lou Minghua(Taizhou Territorial Space Renovation and Ecological Restoration Center,Taizhou 318000,Zhejiang;Tiantai Forestry and Technology Central Station,Taizhou 31720,Zhejiang;Zhejiang Public Welfare Forest and National Forest Farm Management Station,Hangzhou 310020,Zhejiang;Liandu District Ecological Forestry Development Center,Lishui 323000,Zhejiang;Ningbo Academy of Agricultural Sciences,Ningbo 315040,Zhejiang)
出处
《防护林科技》
2022年第5期23-28,共6页
Protection Forest Science and Technology
基金
国家自然科学基金项目“基于代数差分方程的亚热带天然常绿阔叶混交林立地生产力指数建模与制图”(31800539)
其他项目“天台县公益林建设与效益研究”(ZC2019ZFCG-007)资助。
关键词
公益林
服务功能
价值评估
天台县
public welfare forest
service function
value evaluation
Tiantai county
