| 大兴安岭林区天然更新特点及采育方式的探讨 |
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| 引用本文： | 周文起.大兴安岭林区天然更新特点及采育方式的探讨[J].东北林业大学学报,1988(6). |
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| 作者姓名： | 周文起 |
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| 作者单位： | 大兴安岭林管局 |
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| 摘 要： | 对大兴安岭林区不同地区和林型的天然更新特点及采育方式进行了研究探讨。结果表明:兴安落叶松(Larix gmelinii)的天然更新能力很强,具有大量结实和抵抗不良环境的能力,更新的好坏在很大程度上受其生态环境的制约。采伐迹地的天然更新特点是以伐前更新为主,阔叶树比重增多,幼树分布不均匀,需人工补植。现行的“一次采育伐”是不合理的,有条件的地方应适当加大等带间隔皆伐的比重,在迹地上人工更新,在依靠天然更新的伐区应以二次渐伐为主。优先发展人工更新,以人工更新和促进天然更新,二者结合的原则恢复森林是适合大兴安岭林区具体情况的。
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| 关 键 词： | 天然更新 特点 采伐 |
AN APPROACH ON THE CHARACTERISTICS OF NATURAL RESTORATION OF FOREST IN GREAT XINGAN MOUNTAINS AND METHOD OF CUTTING AND CULTURING |
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| Zhou Wen qi.AN APPROACH ON THE CHARACTERISTICS OF NATURAL RESTORATION OF FOREST IN GREAT XINGAN MOUNTAINS AND METHOD OF CUTTING AND CULTURING[J].Journal of Northeast Forestry University,1988(6). |
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| Authors: | Zhou Wen qi |
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| Institution: | Zhou Wen qi (Forestry M(?)nagemont Bureau of Great Xingan Mountains) |
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| Abstract: | Through the investigation and measurement of the different area and different forest type of the Great Xingan Mountains forest region, the characteristics of natural restoration of forest and the method of cutting and raising were studi(?)d in this paper. Results showed that: 1. Larix gmelinii, which is the dorminant species of the forest of Great Xingan Mountains, had great ability in natural restoration, it can bear fruit numerously and can resist bad environment. But the effectiveress of its natural restoration was resticteed by its ecological environment. 2. The main way of the natural restosation in cutover was the precutting restoration, the proportion of roadleaf tree increased, the young trees were not even distributed, so the partly artificial planting was needed. 3. The "one time cutting and raising" in operation is not resonable. In area where the condition is better, the proportion of strip clear cutting should be done in the cutover; while in area where the natural restoration was the main way, the "two times thinning cutting" shoud be used. 4. Developing artificial restoration mainly, and use it to promote natural restoration and to combine the two method together, t(?)is is suitible to the condition of the Great Xingan mountains forest. |
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| Keywords: | Natural regeneration Features Cutting up |
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