| 白桦生长变异与早期选择技术研究 |
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| 引用本文： | 刘利有,陈晓波,宁禄凤,时岩,崔明森,臧俊山,刘双.白桦生长变异与早期选择技术研究[J].北华大学学报(自然科学版),2014,0(3):394-397. |
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| 作者姓名： | 刘利有 陈晓波 宁禄凤 时岩 崔明森 臧俊山 刘双 |
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| 作者单位： | 桦甸市林业局,吉林 桦甸,132400;吉林市林业科学研究院,吉林 吉林,132013;吉林市龙潭区林业工作总站,吉林 吉林,132021;磐石市林业局,吉林 磐石,132300 |
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| 基金项目： | 吉林省林业厅科研项目(项目编号：201008) |
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| 摘 要： | 对吉林省中东部白桦(Betula platyhylla Suk.)天然林进行生长性状早、晚期相关研究,结果表明:白桦天然林不同龄阶的个体生长变异与各性状相关系数与年龄成正比,以15 a生的天然林生长变异、相关系数增长率最高,以后与年龄成反比,并逐渐平稳.确定白桦天然林早期选择最佳年龄为15 a,白桦天然林可用15 a胸径对40 a的材积进行早期预测.
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| 关 键 词： | 白桦 生长变异 早期选择 最佳选择年龄 |
Growth Variation and Early Selection of Betula platyphylla Suk |
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| LIU Li -you,CHEN Xiao-bo,NING Lu-feng,SHI Yan,CUI Ming-seng,ZANG Jun-shan,LIU Shuang.Growth Variation and Early Selection of Betula platyphylla Suk[J].Journal of Beihua University(Natural Science),2014,0(3):394-397. |
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| Authors: | LIU Li -you CHEN Xiao-bo NING Lu-feng SHI Yan CUI Ming-seng ZANG Jun-shan LIU Shuang |
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| Institution: | 1. Huadian City Forestry Bureau ,Huadian 132400, China ;2. Forestry Science Institute in Jilin City,Jilin 132013, China; 3. Forestry Station of Longtan District in Jilin City ,Jilin 132021, China ;4. Panshi City Forestry Bureau, Panshi 132300, China ) |
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| Abstract: | The natural forest of Betula platyhylla Suk. in eastern of Jilin Province was studied on growth characters. The results showed the growth variation of individual natural forest of Betula platyhylla Suk. and relative coefficient are proportional to age,the growth variation and increasing rate of relative coefficient of 15 a natural foresty are the highest,it is in inverse proportion to age and will be stable after 15 a. The optimal age of the early selection for the natural forest of Betula platyphylla Suk. is 15 a, the diameter with 15a and 40a of the natural forest of Betula platyphylla is carried on early forecast. |
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| Keywords: | Betula platyphylla Suk growth variation early selection the optimal selection age |
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