摘要
采用生物量法对欧投行贷款资金在黔东南州进行现有林经营和人工造林2个不同经营水平的10个不同经营模式的碳变化、CO_2排放及基线情景进行计量,比较不同经营水平及同一经营水平下不同经营模式的储碳潜力,同时利用市场价值法(碳税法)核算其经济价值。结果表明:项目期末各碳源碳储量1 111 383.0 t,固定407.5万t CO_2,碳汇总经济价值422 325.9万元,是贷款总额的20.71倍,是还款本息金额的17.84倍,是项目总投资的10.36倍,是项目税前利润的1.67倍。排减262.0万t CO_2,产生的经济价值"净利润"为272 480.0万元,为项目建设成本的6.68倍,税前利润的1.08倍。现有林经营和人工造林2个不同经营水平,人工造林储碳潜力平均值为1.5 t/ha·a,现有林经营的储碳潜力平均值为6.0 t/ha·a,为人工造林的3.83倍。现有林经营水平的5个不同经营模式中针阔混交林(M_2)的储碳潜力最大为8.5 t/ha·a,经济价值为3.2万元/a,最小为杉木大径材培育(M_4)4.8 t/ha·a,经济价值1.8万元/a;人工造林经营水平的5个不同模式中储碳潜力最大的杉竹混交人工林(M_(10))2.4 t/ha·a,经济价值为0.9万元/a,最小为蓝莓经济林(M_8)0.4 t/ha·a,经济价值0.2万元/a。
In this study,we used the biomass method to measure the carbon dynamics,CO2 emissions and baseline scenario of 10 different forest management modes of 2 management levels（ original forest management planted forest management） funded by the Climate Change Framework Loan of the European Investment Bank in Qiandongnan,Guizhou. We also compared the carbon storage potential of different management levels and management modes,and calculated its economic value by using the market value method（ carbon tax method）. The results showed that,at the end of the project,the total carbon storage was 1 111 383. 0 t,and the fixed CO2 was 4 075 000 t. The total economic value of carbon sink was 4. 223 259 billion yuan,20. 71 times of the total loan,17. 84 times of the repayment,10. 36 times of the total investment,and 1. 67 times of the pretax profit. The project reduced 2620 000 t CO2 emissions,and made net profits of 2. 724 8 billion yuan,6. 68 times of the construction cost of the project,and 1. 08 times of the pretax profit.The average carbon storage potential of the planted forest was 1. 5 t/ha·a,and that of the original forest was 6. 0 t/ha·a,3. 83 times of that of the planted forest.Of the five management modes of original forest management,the carbon storage potential of the coniferous and broad-leaved mixed forest（ M2） was the highest（ 8. 5 t/ha·a,economic value of 32 000 yuan/a）,and that of the big-diameter China fir forest（ M4） was the lowest（ 4. 8 t/ha·a,economic value of 18 000 yuan/a）. Of the five management modes of planted forest management,the carbon storage potential of the China fir-bamboo mixed forest（ M10） was the highest（ 2. 4 t/ha·a,economic value of 9 000 yuan/a）,and that of the blueberry economic forest（ M8） was the lowest（ 0. 4 t/ha·a,economic value of 2 000 yuan/a）.
作者
顾卿先
杨学义
GU Qingxian YANG Xueyi(Qiandongnan Institute of Forestry Survey and Planning, Kaili 556000, Chin)
出处
《贵州科学》
2017年第4期40-45,共6页
Guizhou Science
基金
欧洲投资银行应对气候变化框架贷款项目
关键词
黔东南州
森林经营类型
碳汇计量
价值核算
Qiandongnan
forest management type
carbon sink measurement
value accounting
