摘要
为精确估计秦岭火地塘林区油松群落乔木层的碳储量,在外业调查的基础上,采用TOC-VTH-2000A型TOC分析仪测定了油松(Pinus tabulaeformis)、华山松(Pinus armandi)、锐齿栎(Quercus alienavar.acuteserrata)、华北落叶松(Larixprincipis)干、皮、枝、叶、根的含碳率,结合已建立的乔木不同器官生物量模型,计算了不同树种各器官的碳储量和乔木层的碳密度,分析了不同含碳率下各树种各器官碳储量的差异。结果表明:不同树种各器官含碳率明显不同;在相同生物量下,以实测含碳率、0.45和0.50作为植物的平均含碳率计算的油松的干、皮、枝、叶、根,锐齿栎的枝,华北落叶松的皮、枝、叶、根的碳储量有显著差异;油松群落乔木层碳密度为6.594 Mg.hm-2。
Carbon content rates of stem, bark, branch and root of Pinus tabulaeformis, Pinus armandi, Quercus aliena var. acuteserrata and Larix prirwipis were detected by TOC-VTH-2000A TOC analyzer based on field investigation, in order to accurately estimate the carbon storage in arbor layer in P. tabulaeformis community in Huoditang forest region of Qinling Mountains. The carbon storage of organs in different tree species and the carbon density of arbor layer in P. tabulaeformis community were calculated in accordance with the established biomass model for different organs. Impact of carbon content rate on carbon storage of various organs in tree species was also analyzed. Results showed that carbon content rates of organs in the four tree species were different. Under the same biomass, significant differencs were found between the carbon storage values of stem, bark, branch, leaf and root of P. tabulaeformis, branch of Q. aliena var. acuteserrata, and bark, branch, leaf and root of L. principis calculated by the measured carbon content rate or by using 0.45 or 0.50 as the average carbon content rate of plants. Carbon density of arbor layer in P. tabulaeformis community was 6.594Mg·hm^-2.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2009年第1期23-24,共2页
Journal of Northeast Forestry University
基金
西北农林科技大学研究生创新计划项目(05ych027)
中国森林生态质量状况评估与报告技术项目(2006BAD03A0702/wb04)资助
关键词
秦岭火地塘林区
油松林
含碳率
碳密度
Huoditang forest region in Qinling Mountains
Pinus tabulaeformis forests
Carbon content rates
Carbon densities
