森林与环境学报2018，Vol.38Issue(3)：318-325,8.DOI:10.13324/j.cnki.jfcf.2018.03.010
广东不同起源枫香各器官的含碳系数及碳储量
Carbon content coefficient and storage in different origins of Liquidambar formosana in Guangdong Province
摘要
Abstract
In order to quickly and precisely calculate and monitor forest carbon-sink in afforestation projects,based on the 8th consecutive forest inventory data of the distribution of Liquidambar formosana in Guangdong Province in 2012,all 90 sample trees of L.formosana were obtained which contained 10 diameter classes(i.e.2,4,6,8,12,16,20,26,32 and 38 cm),to calculate the carbon storage of individual tree of L.formosana,including the component of stem wood,bark,leaf,branch and roots.The results showed that: the average carbon content coefficient of L.formosana in Guangdong was 0.535 4,and the carbon content coefficient in each component was: stem(0.547 4)＞branch(0.534 4)＞root(0.531 8)＞leaf(0.499 2)＞ bark(0.495 7).The carbon content coefficient of bark and leaf were significantly lower than other components.Carbon content coefficient in specific component of L.formosana plantation forests were lower than natural forests,but there was no significant difference between them.The proportion of carbon storage in each component was: stem＞root＞branch＞bark＞leaf.With the increased of DBH,the proportion carbon storage of stem,bark and leaf in plantation forest increased first and then decreased,the branch and root decreased first and then increased.In the natural forest,the proportion carbon storage of stem and branch increased,but the bark,leaf and root decreased.The optimal carbon storage model of L.formosana plantation were CT＝900.012 5/(1+579.431 1e-0.179 5A),CT＝0.433 3D3.481 6 H-1.914 5,and the R2adjwere 0.82,0.90,respectively.The optimal carbon storage model of natural L.formosana forests were CT＝898.378 7e-46.5871/A,CT＝0.106D1.3724H1.0798,and the R2adjwere 0.70,0.94,respectively.There is no significant difference between plantation and natural forest in model simulation effect and extreme growth value of carbon storage.The carbon storage model established by the combination of DBH and height was better than the model established by age as independent variable.关键词
含碳系数/碳储量/枫香/广东Key words
carbon content coefficient/carbon storage/Liquidambar formosana Hance/Guangdong分类
农业科技引用本文复制引用
徐期瑚,林丽平,薛春泉,张红爱,张亮,雷渊才..广东不同起源枫香各器官的含碳系数及碳储量[J].森林与环境学报,2018,38(3):318-325,8.基金项目
广东省林业科技专项"广东主要碳汇造林树种生物量模型研建" (2015-02) （2015-02）
广东省林业科技创新平台建设项目"广东省碳汇计量监测创新平台建设" (2016CXPT03). （2016CXPT03）
