| 杨、桦林抚育改造技术研究 |
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| 引用本文： | 张怡春.杨、桦林抚育改造技术研究[J].吉林林业科技,2005,34(6):36-39. |
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| 作者姓名： | 张怡春 |
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| 作者单位： | 黑龙江省林业科学研究所,黑龙江,哈尔滨,150040 |
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| 摘 要： | 通过对黑龙江省东部山区10个林业局、427块标准地、1712株解析木的调查研究，得到了杨、桦林的树高、胸径和材积生长曲线，并编制了杨、桦林的抚育间伐控制图。
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| 关 键 词： | 杨、桦林 生长规律 抚育间伐 |
| 文章编号： | 1005-7129（2005）06-0036-04 |
| 收稿时间： | 2005-08-11 |
| 修稿时间： | 2005年8月11日 |
Tending practice to poplar and birch stands by improvement- thinning |
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| ZHANG Yi-chun.Tending practice to poplar and birch stands by improvement- thinning[J].Jilin Forestry Scicnce and Technology,2005,34(6):36-39. |
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| Authors: | ZHANG Yi-chun |
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| Institution: | Forestry Institute of Heilongjiang Province, Harbin 150040, China |
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| Abstract: | An investigation on 1 712 analytic trees selected from 427 sample plots was conducted at 10 forest enterprises in the eastern mountainous region of Heilonjiang Province, China. The results in growth curves of tree height, DBH and volume were obtained, and then control chart of intermediate cutting to the poplar and birch stands was compiled. |
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| Keywords: | poplar and birch stands growth regularity intermediate cutting |
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