油松主要分布区林分碳储量特征与固碳潜力  

Carbon Storage Characteristics and Carbon Sequestration Potential of Pinus tabuliformis Stands in the Main Distribution Area

作　　者：李畅[1] 任云卯 刘嘉幸 熊双江 贾忠奎[3] Li Chang;Ren Yunmao;Liu Jiaxing;Xiong Shuangjiang;Jia Zhongkui(Engineering and Technology Research Center of Pinus Tabulaeformis,National Forestry and Grassland Administration(Beijing Forestry University),Beijing 100083,P.R.China;Beijing Xishan Experimental Forest Farm Management Office;State Key Laboratory of Efficient Production of Forest Resources(Beijing Forestry University))

机构地区：[1]国家林业和草原局“油松工程技术研究中心”(北京林业大学),北京100083 [2]北京市西山试验林场管理处 [3]林木资源高效生产全国重点实验室(北京林业大学)

出　　处：《东北林业大学学报》2024年第6期85-91,共7页Journal of Northeast Forestry University

基　　金：中央财政项目(京[2022]TG 05号)。

摘　　要：根据北京市、河北省、辽宁省、陕西省、内蒙古自治区的油松(Pinus tabuliformis)资源二类调查数据,使用材积源生物量法结合油松含碳率计算中国油松主要分布区油松林碳储量与碳密度,分析不同地区、龄组、林种、起源的油松林碳储量分布特征与固碳潜力。结果表明:油松5个主要分布区的油松林总面积为243.09万hm^(2)、总蓄积为11175.75万m^(3)、总碳储量为5043.38万t,平均碳密度为20.75 t·hm^(-2)。油松天然林碳储量为1660.14万t,碳密度为25.77 t·hm^(-2)。油松人工林碳储量为3383.24万t,碳密度为18.94 t·hm^(-2)。油松人工林碳储量高于天然林,占全部碳储量的67.08%。不同龄组中,碳储量最大是油松中龄林,为2032.38万t,占全部碳储量的40.30%;碳储量最小的为过熟林,占全部碳储量的2.32%。油松各龄组平均碳密度随林龄的增加而增加。不同林种中,碳储量来源主要为防护林及用材林,共为4360.45万t,占全部碳储量的86.46%。5处主要分布区的油松林固碳潜力为5285.63万t,相当于现有油松碳储量的1.88倍,其中,中幼龄林固碳潜力为4904.46万t,是油松林固碳潜力所在。油松林具有明显的固碳增汇能力,其人工林为油松碳库的主体,中幼龄油松林具有巨大的固碳潜力,需加强油松人工中幼龄林的抚育及管理。Based on the second-class survey data of Pinus tabuliformis resources in Beijing,Hebei Province,Liaoning Province,Shaanxi Province,and Inner Mongolia Autonomous Region,the carbon storage and carbon density of P.tabuliformis forests in the main distribution areas of China were calculated using the volume source biomass method combined with the carbon content of P.tabuliformis.The distribution characteristics of carbon storage and carbon sequestration potential of P.tabuliformis forests in different regions,age groups,forest species,and origins were analyzed.The results showed that the total area of P.tabuliformis forests in the five main distribution areas is 2430900 hm^(2),with a total volume of 111757500 m^(3)and a total carbon storage of 50433800 t,with an average carbon density of 20.75 t·hm^(-2).The carbon storage of natural P.tabuliformis forests is 16601400 t,with a carbon density of 25.77 t·hm^(-2).The carbon storage of P.tabuliformis plantation is 33832400 t,with a carbon density of 18.94 t·hm^(-2).P.tabuliformis plantation have a higher carbon storage than natural forests,accounting for 67.08%of the total carbon storage.Among different age groups,P.tabuliformis forests in the middle age group have the largest carbon storage of 20323800 t,accounting for 40.30%of the total carbon storage,while over-mature forests have the smallest carbon storage,accounting for 2.32%of the total carbon storage.The average carbon density of P.tabuliformis forests in each age group increases with age.Among different forest types,the main sources of carbon storage are shelterbelt forests and timber forests,totaling 43604500 t,accounting for 86.46%of the total carbon storage.The carbon sequestration potential of P.tabuliformis forests in the five main distribution areas is 52856300 t,equivalent to 1.88 times the current carbon storage of P.tabuliformis,and the carbon sequestration potential of the middle and young forest is 49044600 t,which is the carbon sequestration potential of P.tabuliformis forest.P.tabuliformis forests

关 键 词：油松 碳储量 碳密度 固碳潜力 森林生物量 

分 类 号：S718.55[农业科学—林学]