江西金盆山林区天然常绿阔叶林生态系统碳储量研究  

Carbon storage of evergreen broad-leaved forest, Jinpenshan, Jiangxi province

作　　者：邱凤英[1] 肖复明[1] 郭捷 林小凡[1] 罗坤水[1] 曹展波[1] 李光运 QIU Fengying;XIAO Fuming;GUO Jie;LIN Xiaofan;LUO Kunshui;CAO Zhanbo;LI Guangyun(Jiangxi Academy of Forestry,Nanchang 330032,Jiangxi,China;Jinpenshan Forest Farm,Xinfeng 341500,Jiangxi,China)

机构地区：[1]江西省林业科学院,江西南昌330032 [2]金盆山营林林场,江西信丰341500

出　　处：《中南林业科技大学学报》2020年第1期105-113,共9页Journal of Central South University of Forestry & Technology

基　　金：国家重点研发计划项目（2016YFD0600605）;江西省林业科技创新专项（201602）;林业公益性行业科研专项（201004073）

摘　　要：【目的】探讨亚热带典型天然常绿阔叶林碳储量及其碳分布格局,以期为常绿阔叶林生态系统碳汇功能评价提供基础数据和理论依据。【方法】以江西省金盆山林区优势树种生态系统生物量研究为基础,结合主要优势树种碳含量实测数据,对金盆山典型常绿阔叶林丝栗栲林、南岭栲林、米槠林的碳储量及碳空间分布格局进行研究,并以这3种林分的碳密度均值计算整个金盆山林区天然常绿阔叶林总碳储量。【结果】金盆山林区丝栗栲林、南岭栲林、米槠林生态系统碳密度分别为294.82、307.63、318.97 t/hm^2,林区生态系统总碳密度为307.14 t/hm^2,林区现存碳总量为2.25×10^6 t;生态系统碳密度分布规律为植被层>土壤层>凋落物层,植被层碳密度分布规律为乔木层>灌木层>草本层,其中乔木层主干的碳密度占56.54%;土壤层碳密度随着土壤层的加深呈下降趋势,40 cm以下土层间的碳密度变化不明显。【结论】金盆山林区常绿阔叶林不同林分间生态系统碳密度差异不显著,生态系统内碳密度有较强的空间分布规律,生态系统碳密度高于我国森林生态系统平均碳密度和多种典型森林类型碳密度,具有较强的碳汇功能。【Objective】This paper discusses the carbon storage and carbon distribution pattern of the typical natural evergreen broadleaved forest in the subtropical region,with a view to providing basic data support and theoretical basis for the evaluation of carbon sink function of the evergreen broad-leaved forest community.【Method】Based on the biomass research of the dominant species community in the Jinpenshan forest region of Jiangxi province,and combined with the measured data of carbon content of the dominant species,the carbon storage and carbon spatial distribution pattern of the typical evergreen broad-leaved forest in the Jinpenshan such as the Castanopsis fargesii,Castanopsis fordii and Castanopsis carlesii forests are studied,and the total carbon reserves of natural evergreen broad-leaved forest in the Jinpenshan forest region are calculated by means of the average carbon densities of these three species.【Result】The carbon densities of the Castanopsis fargesii forest,Castanopsis fordii forest and Castanopsis carlesii forest in the Jinpenshan forest region are 294.82,307.63,318.97 t/hm^2,respectively,the total carbon density of the community is 307.14 t/hm^2,and the total carbon in the forest region is 2.25×10^6 t.The distribution law of carbon density in the community is the vegetation layer>soil layer>litter layer,and the distribution law of carbon density of the vegetation layer is the arborous layer>shrub layer>herbaceous layer,among which the carbon density of the arborous layer is 56.54%.The carbon density of the soil layer decreases with the deepening of the soil layer,and the carbon density fluctuation of the soil layer below 40 cm is not obvious.【Conclusion】The carbon density variation of evergreen broad-leaved forest in the Jinpenshan forest region is not significant in the different forests,the carbon density in the community has distinctive spatial distribution pattern,and the community carbon is higher than the average carbon density of the forest ecosystem in China and that of many

关 键 词：常绿阔叶林 碳储量 碳密度 碳分布格局 

分 类 号：S718.55[农业科学—林学]