| 抚育采伐对山杨次生林植物多样性影响的研究 |
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| 引用本文： | 任立忠,罗菊春,李新彬.抚育采伐对山杨次生林植物多样性影响的研究[J].北京林业大学学报,2000,22(4):14-17. |
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| 作者姓名： | 任立忠 罗菊春 李新彬 |
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| 作者单位： | 北京林业大学资源与环境学院,100083,北京 |
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| 摘 要： | 研究森林经营措施对森林群落物种多样性的影响动态是当前森林经营实践面临的急需解决的问题 ,也是建立多样性评价指标体系的基础与关键 .通过对冀北山地次生山杨中龄林不同强度抚育后 1 ,2 ,5a的山杨林群落物种多样性变化的调查研究 ,结果表明 :弱度、中度抚育提高了群落物种多样性 ,强度抚育降低了群落物种多样性 ;传统的抚育方式需要改进 .合理保留非目的树种可提高乔木层的多样性 ,保留林下植被对维持群落的多样性及减少抚育间伐对群落生境的负影响有极其重要的生态学意义
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| 关 键 词： | 抚育间伐 山杨次生林 物种多样性 冀北山地 |
The effects of intermediate cutting on plant species diversity in Populus davidiana secondary forest |
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| Ren Lizhong,Luo Juchun,Li Xinbin.The effects of intermediate cutting on plant species diversity in Populus davidiana secondary forest[J].Journal of Beijing Forestry University,2000,22(4):14-17. |
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| Authors: | Ren Lizhong Luo Juchun Li Xinbin |
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| Abstract: | To study the impacts of human activities on biodiversity is a direction related to plant diversity maintenance. How forest management measure disturbs forest community biodiversity is a key field that worths giving preferential consideration. This paper gives the results of plant species diversity dynamics of mountain secondary forest in north Hebei Province one year, two years and five years after intermediate cutting. And it shows that the moderate thinning is better for plant diversity development. |
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| Keywords: | intermediate cutting Populus davidiana secondary forest species diversity north Hebei Province |
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