基于改良当量因子法的汉中市森林生态系统服务价值评估  

Evaluation of Forest Ecosystem Service Value in Hanzhong City Based on the Modified Equivalent Factor Method

作　　者：李江月 叶霖晓 吴普侠 LI Jiang-yue;YE Lin-xiao;WU Pu-xia(Qinba Ecological Protection Center in Hanzhong City,Hanzhong,Shaanxi 723000;Shaanxi Academy of Forestry,Xi'an,Shaanxi 710082)

机构地区：[1]汉中市秦巴生态保护中心,陕西汉中723000 [2]陕西省林业科学院,西安710082

出　　处：《陕西林业科技》2024年第3期46-52,共7页Shaanxi Forest Science and Technology

基　　金：陕西林业科技创新大秦岭研究院智库建设专题(SXLK2022-05-2);陕西省第一期林草种质资源普查项目;陕西省二期天然林保护工程项目。

摘　　要：基于森林资源二类调查、林地一张图年度更新调查成果、汉中统计年鉴、陕西省粮食收购价格监测系统数据等相关数据资料,采用改良当量因子法对汉中市2021年森林生态系统服务价值进行评估。结果表明:汉中市2021年森林生态系统服务价值为1953亿元;在四大类森林植被生态服务价值贡献中,阔叶林(包括竹林)生态系统服务价值1353亿元、占总价值的69.31%;在四大项生态系统服务价值中,调解服务价值最大,为1299亿元,占总价值66.51%。全市森林单位面积服务价值为10.09万元·hm^(-2)。汉中市森林经营应在遵循其自身演替规律基础上,适当增加森林生物多样性,加强森林抚育、低效林改造和退化林修复工程建设,全面提升森林质量。Based on the secondary survey of forest resources,annual update survey results of forest land map,Hanzhong Statistical Yearbook,Shaanxi Province Grain Purchase Price Monitoring System data and other related data,the unit area value equivalent factor method was used to evaluate the forest ecosystem service value of Hanzhong City in 2021.The results showed that the forest ecosystem service value in Hanzhong City in 2021 is 195.3 billion yuan.Among the four major categories of forest vegetation ecological service value contributions,broad-leaved forests(including bamboo forests)have an ecosystem service value of 135.3 billion yuan,with the largest contribution to the total value accounting for 69.31%;regulation services have the largest value of 129.9 billion yuan,accounting for 66.51% of the total value.The service value per unit area of forests in the city is 100865 yuan·hm^(-2).Forest management in Hanzhong City should be carried out in a scientific and orderly manner following its own succession rules and improve forest quality comprehensively with forest biodiversity increased appropriately,forest tending strengthened,inefficient forest improved,and degraded forest restored.

关 键 词：森林生态系统服务 价值评估 价值当量因子 汉中市 

分 类 号：S718.5[农业科学—林学]