| 黔西北杉木防护林间伐强度试验 |
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| 引用本文： | 刘崇欣,毕宁,吴春平,卢伟清.黔西北杉木防护林间伐强度试验[J].林业调查规划,2006,31(5):18-20. |
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| 作者姓名： | 刘崇欣 毕宁 吴春平 卢伟清 |
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| 作者单位： | 贵州省毕节地区林科所,贵州,毕节,551700 |
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| 摘 要： | 为探讨黔西北杉木防护林的经营度,从2000年开始,对贵州省织金、纳雍县1991和1992年营造的杉木林进行不同强度的间伐试验。结果认为,初植密度对胸高直径、树高、蓄积量的影响随密度的增加而减少。而中度间伐可以提高生长量为胸径128%、材积71%、蓄积29%。首次林分间伐后密度以保留3 000株.hm-2为宜。间伐初期容易导致水土流失。
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| 关 键 词： | 杉木保护林 间伐强度 黔西北 |
| 文章编号： | 1671-3168（2006）05-0018-03 |
| 收稿时间： | 2006-04-13 |
| 修稿时间： | 2006-05-14 |
Experiment on Intermediate Intensity of China fir Protection Forest in the Northwest of Guizhou |
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| LIU Chong-xin,BI Ning,WU Chun-ping,LU Wei-qing.Experiment on Intermediate Intensity of China fir Protection Forest in the Northwest of Guizhou[J].Forest Inventory and Planning,2006,31(5):18-20. |
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| Authors: | LIU Chong-xin BI Ning WU Chun-ping LU Wei-qing |
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| Abstract: | The experiment on intermediate cutting of China fir forest of Zhijin and Nayong county established in 1991 and 1992 respectively had been done through different intensities since 2000 in order to explore the management extent of China fir protection forest in northwest of Guizhou.The outcome revealed that the impacts of initial density on breast diameter,height,stock volume decreased with the increase of the density.But medium intermediate cutting could raise the increment,in detail,128% of breast diameter,71% of timber volume and 29% of stock volume.The favorable density should be kept as 3000 plats/ hm~2 after initial intermediate cutting,which easily led to water and soil erosion. |
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| Keywords: | China fir protection forest intermediate intensity the northwest of Guizhou |
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