江西省针叶林生态系统服务功能价值动态分析  

Coniferous forest ecosystem services value in Jiangxi Province of China:A dynamic analysis

作　　者：曾伟[1] 熊彩云[1] 肖复明[1] 余林[1] 刘祥凤 

机构地区：[1]江西省林业科学院,南昌330032 [2]江西省井冈山市厦坪林场,江西井冈山343600

出　　处：《生态学杂志》2012年第11期2907-2913,共7页Chinese Journal of Ecology

基　　金：江西省财政林业重大专项(2011511101);江西省林业科学院青年基金项目(2011521101);博士启动项目(2011521106)资助

摘　　要：依据林业行业标准《森林生态系统服务功能评估规范》(LY/T1721-2008),对江西省"九五"和"十五"期间针叶林生态系统服务功能价值进行分析。结果表明:从"九五"到"十五"期间,江西省针叶林生态系统服务功能年均总价值从36.7×1010元增加到37.7×1010元,年均总价值增速为2.92%;单位面积价值从7.04万元·hm-2·a-1减少到6.93万元·hm-2·a-1,减少了1.55%。江西省针叶林2个时期6项服务功能价值大小排列顺序相同,且涵养水源和固碳释氧价值这2项约占年均总价值的81.6%。其中,涵养水源价值最大,这对水土流失严重的江西省具有重大意义。固碳释氧价值及其在总价值中所占比重增加最快,且江西省针叶林以中幼龄林为主,故其碳增汇潜力巨大。According to the Specifications for Assessment of Forest Ecosystem Services in China（LY/T 1721-2008）,an analysis was made on the coniferous forest ecosystem services value in Jiangxi Province in the ninth（1996-2000） and the tenth（2001-2005） five-year periods.From the ninth to the tenth five-year period,the total value of the coniferous forest ecosystem services in the Province had a slow increase,from 367 billion yuan per year to 377 billion yuan per year and with an annual increment of 2.92%,but the service value per year per hectare decreased from 70.4 thousand yuan to 69.3 thousand yuan,with a decrement of 1.55%.The permutation orders of the coniferous forest ecosystem＇s six services values during the two five-year periods were the same,and the first two（the values of water conservation and of carbon fixation and oxygen release） occupied 81.6% of the total.Among the services values,water conservation value was the largest,making important sense to the Jiangxi Province with severe soil and water loss,whereas the carbon fixation and oxygen release values as well as their proportions in total value had the most rapid increase.In the coniferous forests in Jiangxi,young and middle-aged forests were the main parts,with a great potential of carbon sequestration.

关 键 词：针叶林 生态系统服务功能 价值评估 江西省 

分 类 号：X171[环境科学与工程—环境科学]