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桂西北第二代杉木人工林的生物生产力
引用本文:荣薏,何斌,黄恒川,黄海仲,樊东函,陈玉萍,韦中绵.桂西北第二代杉木人工林的生物生产力[J].广西农业生物科学,2008,27(4):451-455.
作者姓名:荣薏  何斌  黄恒川  黄海仲  樊东函  陈玉萍  韦中绵
作者单位:1. 广西大学,林学院,广西,南宁,530005
2. 广西南丹县山口林场,广西,南丹,547200
基金项目:广西“十五”林业科学研究项目(2001-27)
摘    要:对广西西北部的南丹山口林场3个不同林龄(8、11、14年生)的第二代杉木人工林生物生产力进行了研究。结果表明:8、11和14年生杉木人工林的生物量分别为35.75、55.12和75.77t/hm^2,其中经济生物量(干材)分别为16.28、26.64和36.35t/hm^2,占林分生物量的45.5%以上;林分乔木层净生产力分别为4.47、5.01和5.41t/(hm^2·a);从8年生到11年生,树叶、树枝的组成比例呈现明显的下降趋势,再到14年生时呈增长趋势;而干材、干皮、根系却呈现相反的趋势。第二代杉木人工林的林下植被生物量均较少,其大小排列次序为14年生〉8年生〉11年生。

关 键 词:第二代杉木林  林分年龄  生物量  生产力

Biomass productivity of the second generation Cunninghamia lanceolata plantation in northwest of Guangxi
RONG Yi,HE Bin,HUANG Heng-chuan,HUANG Hai-zhong,FAN Dong-han,CHEN Yu-ping,WEI Zhong-mian.Biomass productivity of the second generation Cunninghamia lanceolata plantation in northwest of Guangxi[J].Journal of Guangxi Agricultural and Biological Science,2008,27(4):451-455.
Authors:RONG Yi  HE Bin  HUANG Heng-chuan  HUANG Hai-zhong  FAN Dong-han  CHEN Yu-ping  WEI Zhong-mian
Institution:RONG Yi , HE Bin, HUANG Heng-chuan, HUANG Hai-zhong, FAN Dong-han , CHEN Yu-ping , WEI Zhong-mian (1. Forestry College, Guangxi University, Nanning 530005, China; 2 .Shankou Forest Farm of Nandan County, Nandan 547200, China)
Abstract:In order to understand the biomass productivity of the second generation Cunninghamia lanceolata plantation,the biomass productivity of a second generation Cunninghamia lanceolata plantation of three different stand ages(8-year-old,11-year-old and 14-year-old) in Nandan Shankou Forestry Farm of Guangxi,China were studied.The results showed that the biomass of Chinese fir plantation increased with stand age.The biomass accumulations of 8-year-old,11-year-old and 14-year-old Cunninghamia lanceolata plantation...
Keywords:the second generation Chinese fir plantation  stand age  biomass  productivity  
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