文献类型：期刊文献

中文题名：连栽桉树人工林生长特性和树冠结构特征

英文题名：STUDIES ON THE GROWTH CHARACTERISTICS AND THE CROWN STRUCTURE OF EUCALYPTUS PLANTATION WITH THE DIFFERENT CONTINUOUS PLANTING ROTATION

作者：余雪标[1] 徐大平[2] 龙腾[3] 莫晓勇[3]

第一作者：余雪标

机构：[1]农业部热带作物栽培生理学重点开放实验室;[2]中国林业科学研究院热带林业研究所;[3]广东省雷州林业局

年份：2000

卷号：36

期号：z01

起止页码：137-142

中文期刊名：林业科学

外文期刊名：SCIENTIA SILVAE SINICAE

收录：CSTPCD;;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学重点基金课题!"杉木桉树人工林长期生产力保持机制的研究"( 3 963 0 2 40 )的部分内容

语种：中文

中文关键词：连栽桉树人工林;生长特性;树冠结构特征;生产力

外文关键词：Continuous planting, Eucalyptus plantation, Growth characteristics, Crown structure

分类号：S792.39

摘要：The research results showed that the mean height, DBH , the individual volume and the growing stock of 4 5 year old Eucalyptus plantation decreased with the Continuous Planting Rotation(CPR)increasing. The mean tree height of the second, the third and the fourth rotation decreased by 7 4%, 7 9% and 20 0% respectively compared with the first rotation; the mean DBH decreased by 8 4%, 15 9% and 25 8% respectively; the individual volume decreased by 20 4%,32 8% and 50 4% respectively; and the growing stock decreased by 20 9%,38 7% and 50 5%; The changes of height, DBH , the individual volume and the growing stock with CPR increasing may be simulated by linear, parabola and exponential model: (1) y=a+bx; (2)y=a+bx+cx 2; (3)y=ax b. The corwn length and volume decreased with the CPR increasing, which indicated that the more CPR increased, the worse the growth poentials became, and in which the leaf biomass of the second, the third and the fourth rotation decreased by 10 2%, 44 7% and 71 0% respectively compared with the first planting rotation. Their changes with rotations accorded with the linear model. There was a significat multiple linear regression relationship between the parameter of crown structure and the standing growth index.
The research results showed that the mean height, DBH , the individual volume and the growing stock of 4 5 year old Eucalyptus plantation decreased with the Continuous Planting Rotation(CPR)increasing. The mean tree height of the second, the third and the fourth rotation decreased by 7 4%, 7 9% and 20 0% respectively compared with the first rotation; the mean DBH decreased by 8 4%, 15 9% and 25 8% respectively; the individual volume decreased by 20 4%,32 8% and 50 4% respectively; and the growing stock decreased by 20 9%,38 7% and 50 5%; The changes of height, DBH , the individual volume and the growing stock with CPR increasing may be simulated by linear, parabola and exponential model: (1) y=a+bx; (2)y=a+bx+cx 2; (3)y=ax b. The corwn length and volume decreased with the CPR increasing, which indicated that the more CPR increased, the worse the growth poentials became, and in which the leaf biomass of the second, the third and the fourth rotation decreased by 10 2%, 44 7% and 71 0% respectively compared with the first planting rotation. Their changes with rotations accorded with the linear model. There was a significat multiple linear regression relationship between the parameter of crown structure and the standing growth index.