| 管涔山北部寒温性针叶林下草本植物分布特点分析 |
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| 引用本文： | 李燕军.管涔山北部寒温性针叶林下草本植物分布特点分析[J].植物生态学报,1986,10(3):218-227. |
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| 作者姓名： | 李燕军 |
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| 作者单位： | 中国环境科学院环境管理研究所 |
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| 摘 要： | 本文采用聚类分析中的离差平方和法对管涔山北部分布在1800—2650m阴坡、半阴坡的寒温性针叶林下的草本植物做了数量分类，并结合环境条件分析了聚类结果。表明影响植物分布的主要环境因子是海拔高度，并且海拔高度的影响超过了森林类型对林下草本植物的影响，使后者的影响降为第二位。草本植物分布差异的界限大致是：2650—2500m，2500—2200m,2200—1800m。在同一海拔高度区间，由于上层乔木，土壤的某些理化性状及人为活动影响，林下草本植物分布又有差异。
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| 关 键 词： | 管涔山 聚类 草本植物 寒温性针叶林 环 |
THE DISTRIBUTIONAL FEATURES OF THE HERBS BENEATH THE FRIGID-TEMPERATE CONIFEROUS FOREST IN NORTH GUAN QIN-SHAN AREA |
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| Li Yan-jun.THE DISTRIBUTIONAL FEATURES OF THE HERBS BENEATH THE FRIGID-TEMPERATE CONIFEROUS FOREST IN NORTH GUAN QIN-SHAN AREA[J].Acta Phytoecologica Sinica,1986,10(3):218-227. |
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| Authors: | Li Yan-jun |
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| Abstract: | In this paper, the deviation sum of squares method of the clustering analysis is used to deal with the herbs beneath the frigid-temperate coniferous forest. The herbs are distributed on the shady slopes and semi-shady slopes of the mountains with an altitude of 1800–2800m above sea level in north Guan Qin-Shan area. The clustering analysis results are interpreted in combination with the environmental factors. The result indicates that the most important environmental factor which influences the distribution of herbs is altitude. Altitude has more-influence on herbs beneath trees than forest types. Thus the latter become the secondary factor of influence. The vertical zoning of herb distribution is as follows: 2850—2500m, 250D—220Dm and 2200—1800m. In the same altitude range, variation of the distribution of herbs beneath trees also exists owing to different behaviours of upper arbores, some physical and chemical characters of the soil and activities of human beings. |
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| Keywords: | Quan Qin-shan Clustering Herbs Frigidtemperate coniferous forest Environmental factor |
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