猫儿山水青冈林土壤保持生态服务价值

Soil Conservation Ecosystem Service Values of Fagus longipetiolata Forest in Maoer Mountain, Guangxi

开展水青冈(Fagus longipetiolata)林土壤保持生态系统服务研究对保护区水土保持措施制定和独特单一生态系统精细化管理具有重要意义。以猫儿山不同海拔水青冈林土壤为研究对象,采用《LY/T1721-2008森林生态系统服务功能评估规范》和广西生态服务评估方案相关方法,结合2016年全国及广西社会公共数据,评估了猫儿山110.20hm^2水青冈林2016年土壤保持生态服务价值。结果表明:林分单位面积年平均固土价值为1076.59元/(hm^2·a),年平均保肥价值为2986.25元/(hm^2·a),单位面积年平均土壤保持生态服务价值为4062.84元/(hm^2·a)。林分年固土价值为118614.32元/a,年保肥价值329084.50元/a(其中年保持氮量价值、保持磷量价值、保持钾量价值和保持有机质价值分别为4814.53、1393.48、95347.99、227528.49元/a),林分土壤保持生态服务总价值为447698.81元/a。

Carrying out research on soil conservation ecosystem services of Fagus longipetiolata forest is of great significance for formulation of soil and water conservation measures in protected areas and meticulous management of unique single ecosystems. Taking soils from F. longipetiolata forests at different altitudes in Maoer Mountain as research objects,soil conservation ecosystem service values of 110.20 hm^2 F. longipetiolata forest in 2016 were evaluated,by using the LY/T 1721-2008 forest ecosystem service function assessment specification and Guangxi ecosystem service assessment program,combined with 2016 national and Guangxi social public data. Results showed that annual average soil consolidation ecosystem service value of stand unit area was 1 076.59 yuan/(hm^2·a), annual average soil fertilization ecosystem service value was 2 986.25 yuan/(hm^2·a), and annual average soil conservation ecosystem service value of unit area was 4 062.84 yuan/(hm^2·a). Annual soil consolidation ecosystem service value of stand was 118 614.32 yuan/a,and soil fertilization ecosystem service value was 329 084.50 yuan/a (in which, values of nitrogen conservation, phosphorus conservation, potassium conservation and organic conservation were 4 814.53 yuan/a, 1 393.48 yuan/a,95 347.99 yuan/a and 227 528.49 yuan/a,respectively). The total value of soil conservation ecosystem service was 447 698.81 yuan/a.