【摘要】 应用干烧法对华北地区主要森林类型的 8个乔木建群种和 1 0个灌木树种不同器官的有机含碳率进行了测定 ,同时利用生物量标准地资料对其中的 7个乔木树种的林分平均含碳率进行了分析 .8种乔木及 1 0种灌木的器官平均含碳率分别为辽东栎 0 475 0、白桦 0 51 2 5、山杨 0 4880、椴树 0 476 4、油松 0 51 0 5、侧柏 0 50 1 0、华北落叶松 0 51 5 8、红皮云杉 0 51 1 8,1 0种灌木 0 4897;7个乔木树种林分的平均含碳率分别为 ,辽东栎 0 476 1、白桦 0 50 0 8、山杨0 485 9、油松 0 50 3 0、侧柏 0 50 5 3、华北落叶松 0 50 97、红皮云杉 0 51 1 1 .各树种器官含碳率的种内变动系数在1 49%～ 6 32 %之间 ;器官含碳率的种间变动系数在 2 1 5 %～ 7 48%之间 .针叶树种器官的平均含碳率普遍比阔叶树种平均高 1 6 %～ 3 4% ,相应的针叶林分的平均含碳率也高于阔叶林更多还原

【Abstract】 The tissues’ carbon content rates were measured on eight constructive arbor species and ten shrub species in northern China by using the combustion method, and the mean tissues’ carbon content rates of these species were 0 475 0, 0 512 5,0 488 0,0 476 4,0 510 5,0 501 0,0 515 8,0 511 8,0 489 7 respectively in Quercus liaotungensis, Betulla platyphylla, Populus davidiana, Tilia mongolica, Pinus tabulaeformis, Platycladus orientalis, Larix principis rupprechtii, Picea koraiensis and ten shrub species(they were Corylus hrterophylla, Ostryopsis davidiana, Lespedeza bicolor, Spiraea pubescens, Rosa xanthina, Syringa oblata, Eleagnaceae umbellate, Lonicera maackii, Acer ginnala and Hippophae rhamnoides ). Based on the biomass data of stand sample plot, the mean carbon content rates of seven stands had been calculated, the results were 0 476 1 in Quercus liaotungensis ,0 500 8 in Betulla platyphylla ,0 485 9 in Populus davidiana ,0 503 0 in Pinus tabulaeformis ,0 505 3 in Platycladus orientalis ,509 7 in Larix principis rupprechtii and 0 511 1 in Picea koraiensis . The variance ratio of the tissues’ carbon content rate ranged from 1 49% to 6 32% inner species, and 2 15% to 7 48% between species. The mean tissues’ carbon content rates of conifer species were higher than broadleaf species by 1 6%～3 4%, and the carbon content rates of conifer stands were also higher than the broadleaf stands.更多还原