福建三明33a生格氏栲人工林生长与生物量  

Growth and Biomass of a 33-year-old Castanopsis kawakamii Plantation in Sanming,Fujian,China

作　　者：陈辉[1] 

机构地区：[1]福建农林大学莘口教学林场,福建三明365002

出　　处：《亚热带资源与环境学报》2009年第3期22-25,共4页Journal of Subtropical Resources and Environment

基　　金：福建省青年科技人才创新项目(2001J038);福建省科技厅重大基础研究项目(2000F004);高等学校骨干教师资助计划项目

摘　　要：通过对福建三明莘口教学林场33 a生格氏栲人工林生物量与生产力及其生长过程的研究,结果表明:33 a生格氏栲人工林平均树高、胸径和林分蓄积量分别为18.9 m、24.2 cm和412.43 m3.hm-2,林分生物量和乔木层生物量则分别达421.74 t.hm-2和413.11 t.hm-2,大大高于邻近的同龄杉木人工林;乔木层生物量所占比例大小顺序为:干与皮(58.32%)>枝(17.59%)>根(17.22%)>叶(3.06%);与杉木相比,格氏栲与同龄杉木生长过程有所不同,胸径和单株材积生长早期较慢,但速生持续期长,材积数量成熟龄较长.Biomass, productivity and growth dynamics of a 33-year-old Castanopsis kawakamii plantation Were studied in Sanming, Fujian, China. The results showed that mean tree height, mean diameter at breast height （DBH） and growing stock were 18.9 m, 24. 2 cm and 412. 43 m^3 ·hm^-2, respectively, for the C. kawakamii plantation. The stand hiomass and tree layer biomass of the plantation were 421.74 t·hm^-2 and 413. 11 t·hm^-2, respectively, and both much higher than those of the neighboring Chinese fir plantation with the same age. The proportion in biomass of different components in tree layer were in the order of stem with bark （58. 32% ） 〉 branch （17.59%） 〉 root （ 17. 22% ） 〉 leaf （3.06%） . C. kawakamii trees were different from the Chinese fir in growth dynamics, their DBH and single tree volume grew slowly at the early stage, but their longer fast growing period gave rise to a longer time for volume quantitative maturity compared with Chinese fir.

关 键 词：格氏栲 人工林 生物量 生产力 生长动态 

分 类 号：S718.556[农业科学—林学]