| 林木干形变化规律的研究 |
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| 引用本文： | 王君山,张锁成,黄婕,张景兰,陈东来.林木干形变化规律的研究[J].河北林果研究,2007,22(3):247-251. |
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| 作者姓名： | 王君山 张锁成 黄婕 张景兰 陈东来 |
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| 作者单位： | 1. 河北农业大学,河北,保定,071000
2. 木兰围场林管局,围场,068450 |
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| 摘 要： | 利用450株桦树标准木和63株落叶松标准木材料对林木的干形进行了研究,旨在探索林木干形的变化规律,为林木材积的测算提供理论依据。结果表明,林木的各干形指标均因径阶的不同而不同,并且胸高形数和胸高形率均随直径的增大而又变小的趋势。
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| 关 键 词： | 干形指标 落叶松 桦树 |
| 文章编号： | 1007-4961（2007）03-0247-05 |
| 修稿时间： | 2007-04-03 |
Study on the variation patterns of stem-shape of standing trees |
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| WANG Jun-shan,ZHANG Sou-cheng,HUANG Jie,ZHANG Jing-lan,CHEN Dong-lai.Study on the variation patterns of stem-shape of standing trees[J].Hebei Journal of Forestry and Orchard Research,2007,22(3):247-251. |
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| Authors: | WANG Jun-shan ZHANG Sou-cheng HUANG Jie ZHANG Jing-lan CHEN Dong-lai |
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| Institution: | 1 Agricultural University of Hebei , Baodiong 071000, China; 2 Forestry Administrition of Mu,-Lan-Weichang, Weichang 068450, China |
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| Abstract: | The stem-shape have been studied using 150 sampling trees of Betula platyphyla Suk and 63 sampling trees of Larix in the paper and search for changing of stem-shape of trees.The results showed the different of all stem-shape-index with diameter class.The breast-height form factor and the breast-height factor quotient change small with changing large of diameter. |
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| Keywords: | stem shape indix larix Betula platyphylla Suk |
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