不同年龄阶段华北落叶松单株生物量的研究

Studies on Biomass of Single Plant of Larix Principis-rupprechtii in Different Age Groups

该文以塞罕坝机械林场不同年龄落叶松为研究对象,研究了不同年龄阶段华北落叶松单株各部分(树干、树枝、树叶、根系)生物量之间的关系,并分析了不同年龄阶段落叶松各组分生物量的变化规律。结果表明:落叶松各组分生物量由大到小依次为树干>根系>树枝>树叶。随着林龄的增加,树干、树枝、树叶、根生物量逐渐增大。但各组分变化仍有所差异,其中树枝、树叶的生物量增长幅度相对较小,树干的生物量增长幅度最大,且树干生物量与其他器官生物量增长幅度差距逐渐变大,处于较明显的优势地位。

Taking Saihanba mechanical forest larch different age as the research object, studies the different age stages of larch individual parts（trunk,branches,leaves,root system）,the relationship between the biomass,biomass of components and analyzes the different age stages of larch. The results showed that the biomass of the larch was from root of branch of tree. With the increase of the forest age, the tree trunk, branches,leaves,and root biomass gradually increase. Changes of components but still have some differences, including biomass growth of branches and leaves are relatively small,the biggest biomass growth of the trunk,and trunk biomass and other organ biomass growth gap increases gradually,and in a more obvious advantage position.