文献类型：期刊文献

中文题名：马尾松造林密度效应研究

英文题名：Study on Planting Density Effects for Masson Pine Plantation

作者：谌红辉[1] 丁贵杰[2]

第一作者：谌红辉

机构：[1]中国林业科学研究院热带林业实验中心;[2]贵州大学造林生态研究室

年份：2004

卷号：40

期号：1

起止页码：92-98

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家"九五"攻关课题"马尾松纸浆用材树种良种选育及培育技术研究"(专题编号 :96-0 11-0 1-0 1)内容之一

语种：中文

中文关键词：马尾松;造林密度;密度效应;经济分析;出材量

外文关键词：Pinus massoniana, Planting density, Density effects, Economic analysis, Mill run

分类号：S791.248

摘要：用造林密度试验林的 11a逐年观测资料 ,分析了造林密度对生长和经济效益的影响 ,结果表明 :A、B、C、D(16 6 7、3333、5 0 0 0、6 6 6 7株·hm- 2 ) 4种不同造林密度对林分生长、林分结构及出材量均有显著影响 ,其中林分胸径、单株材积 ,冠幅、冠高比随密度增大而减小 ,蓄积、高径比、自然稀疏强度随密度增大而增大 ,初始间伐期随密度增大而提前 ,造林密度对树高生长无显著影响 ;随着密度增大 ,林分总出材量、小径阶株数百分比及小径材出材量所占的比例增大 ,11年生林分C、D密度总出材量比A密度分别高 34 0 %、4 3 0 % ;经出材量、生产成本与产值核算 ,培育短周期工业用材林宜采用B～C间的密度 (3333～ 5 0 0 0株·hm- 2 ) ,培育大、中径材宜采用A～B(16 6 7～ 3333株·hm- 2 )间的密度。
The effects of planting density on growth and economic benefit of Masson Pine plantation were analyzed by using the data obtained year by year during 11 years from the experiment stand (including treatments of A,B,C,D, their planting density is 1 667, 3 333, 5 000, 6 667 trees5hm -2 respectively), the results showed that it had significant effects on stand growth, stand structure and mill run. With the increase of planting density, diameter at breast height(DBH), single tree volume, crown diameter, ratio of crown length to tree height decreased, but growing stock, tree height/DBH, self_thinning intensity increased, stand total mill run, trees percentage of small logs and mill run of small timber increased, and first thinning time was earlier. The planting density had no significant effect on tree height. Mill run of C and D was more 34.0%, 43.0% than that of A respectively. By a synthetic analysis of mill run, the cost of production and output value, planting density of cultivating short rotation industry timber could be determined as 3 333～5 000 trees5hm -2, to cultivate large or middle diameter timber, it could be determined as 1 667～3 333 trees5hm -2.