| 杉木不同经营密度的林下植被变化 |
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| 引用本文： | 涂育合. 杉木不同经营密度的林下植被变化[J]. 西北林学院学报, 2005, 20(4): 52-55 |
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| 作者姓名： | 涂育合 |
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| 作者单位： | 福建省泰宁国有林场,福建,泰宁,354400 |
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| 基金项目： | 国家林业局中试项目（1998-11-1）;福建省重大科技项目（20012025） |
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| 摘 要： | 对杉木不同经营密度的林下植被变化的研究表明,杉木林下植被的生长发育和群落结构的变化,与林分密度管理方式的关系十分密切.不同密度管理方式林下植被的垂直结构差异明显,32a生的杉木林下灌木层和草本层的平均高度呈现稀组>中组>密组的变化趋势.林分物种多样性指数、丰富度和均匀度均呈现稀组>中组>密组的动态特征.林下植被的发育状况随着林龄的增长,种类组成和盖度均有所增加,林下植被生物量也呈增大的趋势.
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| 关 键 词： | 杉木 经营密度 林下生物多样性 |
| 文章编号： | 1001-7461（2005）04-0052-04 |
| 收稿时间： | 2004-12-27 |
| 修稿时间： | 2004-12-27 |
Dynamic Characteristics of Undergrowth Vegetations in Cunninghamia lanceolata with Different Management Density |
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| TU Yu-he. Dynamic Characteristics of Undergrowth Vegetations in Cunninghamia lanceolata with Different Management Density[J]. Journal of Northwest Forestry University, 2005, 20(4): 52-55 |
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| Authors: | TU Yu-he |
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| Affiliation: | Forest Farm of Taining County, Taining, Fujian 354400,China |
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| Abstract: | The dynamic characteristics of the process of undergrowth vegetation under different management densities in Cunninghamia lanceolata forest was studied.The results showed that the undergrowth plants and the change of the structure of community were closely correlated to density measures.The differences of vertical structure of undergrowth plants under different density measures were significant,average height of shrub layer and herb layer and the richness index,diversity index and evenness index of undergrowth plants showed thin group>middle group>dense group.The growth of undergrowth plants of C.lanceolata was different in different time sequence.Species composition,biomass and quantities flourished with the growth of C.lanceolata. |
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| Keywords: | Cunninghamia lanceolata managemen density species diversity |
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