| 不同造林密度杉木林分营养空间利用的差异 |
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| 引用本文： | 林开敏,俞新妥,邱尔发,何智英,林思祖. 不同造林密度杉木林分营养空间利用的差异[J]. 浙江林学院学报, 1996, 13(3): 243-247 |
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| 作者姓名： | 林开敏 俞新妥 邱尔发 何智英 林思祖 |
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| 作者单位： | 福建林学院，山东省泰安地区林业科学研究所 |
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| 基金项目： | “八五”国家科技攻关资助项目 |
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| 摘 要： | 对５种造林密度的２９年生杉木林分的全面调查结果表明：随着林分密度增加，冠长、冠幅、单株叶面积和叶面积指数呈递减趋势，林下植被生活势减弱，根幅和单株根量减少，根深、粗根密度及总根系密度增大。细根以３７５０株·ｈｍ－２为最大，近似正态分布。
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| 关 键 词： | 杉木 造林密度 生态效应 林分 营养 空间利用 |
Nutrient Space Difference of Chinese Fir Stands with Different Densities |
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| Lin Kaimin. Nutrient Space Difference of Chinese Fir Stands with Different Densities[J]. Journal of Zhejiang Forestry College, 1996, 13(3): 243-247 |
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| Authors: | Lin Kaimin |
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| Abstract: | The overall research of five densities of 29-year-old Chinese fir stands shown that the crown length,crown range,individual leaf area and leaf area index decreased with the increase of stand densities.And root range and indiv idual root quantity were in the same case.The increase of stand density weakened the undergrowth viability and increadcd root depth,rootdensity and total root density.The stand has the most thin roots with densityof 3750 per hectare.The distribution tends to be normal. |
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| Keywords: | Chinese fir(Cunninghamia lanceolata) density of plantation habita ecologial effect |
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