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| 细叶桉造林密度试验初报 | |
| 引用本文： | 杨曾奖,徐大平,张宁南,陈美红. 细叶桉造林密度试验初报[J]. 生态环境, 2003, 12(4): 446-448 |
| 作者姓名： | 杨曾奖 徐大平 张宁南 陈美红 |
| 作者单位： | 中国林业科学院热带林业研究所,广东,广州,510520 |
| 基金项目： | 国家“九五”科技攻关项目(96-011-01-03) |
| 摘 要： | 在细叶桉造林试验中，设计了7种密度，结果表明，在造林的当年，高密度林分能较早形成林分环境，有利于早期生长，而后来其个体间较早开始进行营养空间的竞争，部分个体生长受到抑制。随着时间的推移，高密度林分不利于冠径的发展。相应地低密度林分呈现出径生长较快的趋势，并且这种趋势随着树木长大而愈来愈明显。单株材积随密度的变化趋势与径的变化规律相一致。林分的蓄积量更大程度地受株数的作用，密度越大，蓄积量越大。建议细叶桉小径材和纸浆材的造林密度为2500株／hm^2。 |
| 关 键 词： | 细叶桉 初植密度 工业用材林 林分发育 |
| 文章编号： | 1672-2175(2003)04-0446-03 |
| 修稿时间： | 2003-06-08 |
Preliminary study on the spacing of Eucalyptus tereticornis |
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| YANG Zeng-jiang,XU Da-ping,ZHANG Ning-nan,CHEN Mei-hong Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou ,China. Preliminary study on the spacing of Eucalyptus tereticornis[J]. Ecology and Environmnet, 2003, 12(4): 446-448 | |
| Authors: | YANG Zeng-jiang XU Da-ping ZHANG Ning-nan CHEN Mei-hong Research Institute of Tropical Forestry Chinese Academy of Forestry Guangzhou China |
| Affiliation: | YANG Zeng-jiang,XU Da-ping,ZHANG Ning-nan,CHEN Mei-hong Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou 510520,China |
| Abstract: | spacing treatments were selected according to the diversified results from spacing experiments in references for this experiment. Experimental results show that high density spacing benefited tree growth in early stage of plantation establishment because it was good for weed control. This effect was reduced with time. Low density spacing increased diameter of trees dramatically. The stand volume was affected more by tree density than diameter of individual tree. The best spacing suggested by the study is 2500 trees per hectare for pulp wood or pole production plantation. |
| Keywords: | Eucalyptus tereticornis spacing plantation tree growth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |