摘要
以杉木人工林为研究对象,通过野外样地调查,并采集样品进行含碳量分析,揭示不同龄组和密度杉木人工林的碳储量分配特征。结果表明,不同龄组和密度乔木层碳储量均有显著性差异(P<0.05),而且在各器官之间的分配比例存在规律性。在一定密度范围内,密度产生的竞争效应会显著影响乔木层碳储量分配特征。不论是低密度还是高密度,乔木层和土壤层均是碳储量的主要组成部分。随着林龄增加,土壤碳储量占总碳储量的比重减小,而植被碳储量和凋落物碳储量占总碳储量的比重增加。今后应重视不同管理措施对杉木人工林C-N-H2O耦合循环的影响研究。
Taking Chinese fir plantations as the research object, through intensive field investigation, and the samples were collected in order to analysis carbon content, and reveal the carbon storage distribution characteristics of Chinese fir plantation in different age group and density. The results showed that tree layer carbon storage of different age group and density were significant differences （P 〈 0.05） , and there was regularity in the distribution ratio between the various organs. Within a certain density range, com- petitive effect produced by density significantly affected the carbon storage distribution characteristics of tree layer, tree layer and soil layer were the main components of carbon stocks whether low density or high density, With the increasing of forest age, soil carbon stocks proportion of total carbon storage de- creasing, and vegetation carbon storage and litter carbon stocks increasing in the proportion of total car- bon stocks. In future research, we should pay attention to the effects of different management measureson Chinese fir plantation C - N - H2O coupling cycle.
出处
《林业调查规划》
2016年第4期26-31,共6页
Forest Inventory and Planning
基金
内蒙古自然科学基金博士基金项目(2015BS0323)
关键词
碳储量
分配特征
杉木人工林
龄组
密度
carbon storage
distribution characteristics
Chinese fir plantation
age group
density
