几种不同更新的森林群落碳储量结构特征分析  

Analysis of the carbon stock structure in forest plantations with different regeneration methods

作　　者：张国斌[1,2] 李秀芹[2] 徐泽鸿[1] 胡茶青 张世能[2] 胡国华 

机构地区：[1]国家林业局调查规划设计院,北京100714 [2]黄山学院生命与环境科学学院,安徽黄山245041 [3]岭南林场,安徽岭南245421

出　　处：《生态环境学报》2012年第2期206-212,共7页Ecology and Environmental Sciences

基　　金：安徽省自然科学基金项目(090415258);黄山学院科学研究计划项目(2008xkjq024)

摘　　要：森林更新是维持和扩大森林资源的主要途径,也是森林结构调整、森林可持续经营和构建多功能高效的森林生态系统的过程。在安徽南部的岭南林场,选择了马尾松(Pinus massoniana Lamb)人工林(MP)、杉木(Cunninghamia lanceolata)人工林(CF)、阔叶混交天然次生林(MB)和针阔混交人工次生林(MN)等4种具有典型代表性的森林群落类型,研究了不同更新方式形成的森林群落的碳储量结构特征。结果表明:(1)针阔混交次生林树干生物量密度最大,为(67.32±56.57)mg.hm-2,杉木人工林生物量密度最小,为(43.79±9.13)mg.hm-2,而马尾松树干生物量所占比例最大,为(64.04±1.49)%。阔叶混交次生林碳储量最高,为(126.47±90.75)mg.hm-2;(2)4种群落类型中,阔叶混交林与马尾松群落碳密度最大,分别为95.67和98.21mg.hm-2,杉木群落碳密度最小,为55.41 mg.hm-2。阔叶混交林中的灌木层生物量碳密度最大,为(17.438±24.627)mg hm-2,马尾松林的草本层和枯落层生物量碳密度最高,分别为(1.326±0.431)、(5.517±2.846)mg.hm-2;(3)阔叶混交林群落的地下碳储量最高,为(10.5±9.8)mg.hm-2,群落地下碳储量从大到小的顺序是阔叶混交林>针阔混交林>杉木林>马尾松林。相应的群落地上碳储量从大到小的顺序是阔叶混交林>针阔混交林>马尾松林>杉木林。杉木林根茎比(R/S)最大,为0.21±0.01,杉木林群落中的灌木层根茎比(R/S)最大,为1.61±0.11;(4)在阔叶混交林中,株数密度与乔木层、草本层的碳比例正相关。在杉木林群落中,平均胸径、株数密度与乔木层碳所占比例成负相关。除杉木林群落外,灌木层碳含量之比与胸径及密度等调查因子都呈负相关。Forest regeneration can maintain and facilitate forest resources,and is the process for adjusting forest structure,fulfilling sustainable forest management,and creating efficient multi-functional forest ecosystems.In this study,we compared carbon stock structure aiming four typical forest communities including Masson pine plantations,Chinese fir plantations,natural mixed broad-leaved secondary forest,artificial mixed needle-broad leaved secondary forest in Lingnan forestry farm in southern Anhui province,China.The results showed that：（1） the maximum stem biomass density was found in the artificial needle-broad leaved mixed secondary forest（67.32±56.57） mg.hm-2,and the minimum was in Chinese fir plantations（43.79±9.13） mg.hm-2.The largest proportion of stem biomass occurred in Masson pine plantations（64.04±1.49）%,but the mixed broad-leaved secondary had the highest carbon storage（126.47±90.75） mg C.hm-2;（2） Among the four forest plantations,the natural mixed broad-leaved secondary forest and Masson pine plantation had the highest carbon density 95.67 and 98.21 mg.hm-2,respectively,while the Chinese fir plantation has the lowest C density 55.41 mg.hm-2.The shrub layer had the highest biomass carbon density（17.438± 24.627） mg hm2 in the mixed broad-leaved secondary forest,but the herb layer and litter layer stored the most carbon（1.326 ± 0.431） and（5.517±2.846） mg.hm-2,respectively in the Masson pine plantation;（3） the underground carbon storage in the mixed broad-leaved forest was the highest（10.5±9.8） mg hm-2,and followed by the mixed needle-broad leaved secondary forest,the Chinese fir plantations,and the Masson pine plantations.The aboveground carbon storage was in the order from the large to smallest for the mixed broad-leaved forest,the mixed needle-broad leaved secondary forest,the Masson pine plantation,and the Chinese fir plantation.The biggest ratio of root to stem was found in the Chinese fir plantations 0.21±0.01 among the four forest plantations,whi

关 键 词：森林更新 森林群落 碳储量 结构 安徽 

分 类 号：S791.253[农业科学—林木遗传育种]