福州鼓山茶园生态系统服务功能价值评估

Value assessment of ecosystem service function of tea plantations in Gushan Mountain of Fuzhou

选取3、8、25 a常规茶园和30 a有机茶园为研究对象,结合相关统计调查数据和试验地样品实测数据,从物质生产功能、固碳释氧功能、营养物质贮存功能、涵养水源功能、水土保持功能5项指标对福州鼓山茶园生态系统服务功能价值进行评估。结果表明,4种茶园单位面积生态系统服务功能价值表现为:30 a有机茶园(112551.49元·hm-2·a-1)>25 a常规茶园(85670.05元·hm-2·a-1)>8 a常规茶园(75431.86元·hm-2·a-1)>3 a常规茶园(74050.83元·hm-2·a-1),其中生态系统服务功能间接经济价值表现为:25 a常规茶园(17199.74元·hm-2·a-1)>30 a有机茶园(9846.02元·hm-2·a-1)>8 a常规茶园(6961.55元·hm-2·a-1)>3 a常规茶园(5580.52元·hm-2·a-1),且茶园生态系统服务功能价值随植茶年龄增加而增大,有机栽培有利于提高茶园生态系统服务功能价值。

Traditional tea plantations of 3,8 and 25 years old and an organic tea plantation of 30 years old in Gushan Mountain of Fuzhou were selected as the research objects,and their ecosystem service function values were assessed using the related social survey data and the measured data of the samples from the tested plots. Assessment indices included the material production function,carbon fixation and oxygen release function,nutrient storage function,water conservation function,soil and water conservation function. Results showed that the values of ecosystem service function of the 4 different tea plantations per hectare followed the order of the organic tea plantation of 30 years old（112551.49 yuan·hm- 2·a- 1） 〉the traditional tea plantation of 25 years old（85670.05yuan·hm- 2·a- 1） 〉the traditional tea plantation of 8 years old（75431.86 yuan·hm- 2·a- 1） 〉the traditional tea plantation of3 years old（74050.83 yuan·hm- 2·a- 1）. Indirect economic values followed the order of the traditional tea plantation of 25 years old（17199. 74 yuan·hm- 2·a- 1） the organic tea plantation of 30 years old（9846.02 yuan·hm- 2·a- 1） the traditional tea plantation of 8 years old（6961. 55 yuan·hm- 2·a- 1） the traditional tea plantation of 3 years old（5580.52 yuan·hm- 2·a- 1）. As planting age increasing,the ecosystem service function values of tea plantations increased. Organic tea cultivation would help improve the ecosystem service function values of tea plantations.