| 天然白桦林的特点与经营 |
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| 引用本文： | 柴一新.天然白桦林的特点与经营[J].东北林业大学学报,2000,28(5):31-34. |
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| 作者姓名： | 柴一新 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 基金项目： | 国家“九五”攻关专题!（96— 011— 03－20） |
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| 摘 要： | 通过白桦林样地调查，对白桦林进行了径级分析、死亡木分析和经营分析。结果表明，白桦林是一个不稳定的次生林型。在大片次生林中的白桦林天然更新非常好。现在硬阔已进入演替层；死亡木用“一边竞争”的模型进行预测效果较好。根据分析提出对白桦林进行上层疏伐的经营方法。
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| 关 键 词： | 白桦林 天然更新 森林经营 竞争模型 |
The Feature and Management of Natural Birch Forest |
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| Chai Yixin.The Feature and Management of Natural Birch Forest[J].Journal of Northeast Forestry University,2000,28(5):31-34. |
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| Authors: | Chai Yixin |
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| Institution: | Chai Yixin
(Northeast Forestry University, Harbin 150040, P. R. China) |
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| Abstract: | In this paper. the feature of birch (Betula platyphylla) secondary forest was analysed including succession analysis, died-tree analysis and management analysis by measuring plots. Result shows that birch forest type was unstable. and a good natural regeneration occurred when the brich stand was surrounded by secondary forests. The model of "one side competition" is suitable to forecast the died trees and lived trees. With analysis, " thining from above" was proposed. |
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| Keywords: | Birch Natural regeneration Forest management Competition model |
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