| 内蒙古黑里河天然油松林主要树种的空间分布格局 |
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| 引用本文： | 张赟,张春雨,赵秀海.内蒙古黑里河天然油松林主要树种的空间分布格局[J].西北植物学报,2009,29(1). |
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| 作者姓名： | 张赟 张春雨 赵秀海 |
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| 作者单位： | 北京林业大学,省部共建森林培育与保护教育部重点实验室,北京,100083 |
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| 摘 要： | 于内蒙古黑里河自然保护区设置1.96 hm2的油松林固定监测样地,用样方法对油松林物种组成及其分布进行调查分析,并用Ripley's K函数对乔木层的主要树种进行空间格局分析,以探讨油松种群不同生长阶段个体(幼树、小树及大树)的空间分布.结果表明:乔木层共调查到13个树种,油松为优势种,主要伴生种包括色木槭、蒙古栎、蒙椴、山杨和白桦.油松林内各主要树种的径级结构均呈反J型分布.各主要树种在空间分布上主要表现为聚集分布,油松种群在1～65 m的尺度上呈聚集分布,大于65 m的尺度表现为随机分布,色木槭、蒙古栎、蒙椴、山杨和白桦在所有尺度上呈聚集分布.随着种群发育(幼树-小树-大树),油松种群由聚集分布趋于随机分布,体现了油松种群的生存策略.
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| 关 键 词： | 油松 种群结构 胸径分布 空间格局 |
Spatial Distribution Pattern of Main Tree Species in Pinus tabulaeformis Forest of Heilihe in Inner-Mongolia |
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| ZHANG Yun,ZHANG Chun-yu,ZHAO Xiu-hai.Spatial Distribution Pattern of Main Tree Species in Pinus tabulaeformis Forest of Heilihe in Inner-Mongolia[J].Acta Botanica Boreali-Occidentalia Sinica,2009,29(1). |
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| Authors: | ZHANG Yun ZHANG Chun-yu ZHAO Xiu-hai |
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| Institution: | The Key Laboratory for Silviculture and Conservation of Ministry of Education;Beijing Forestry University;Beijing;100083;China |
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| Abstract: | A Pinus tabulaeformis forest which was established in Heilihe natural reserve of Inner Mongolia at the area of 1.96 hm2 were investigated by sampling methods.Tree composition and DBH structure of P.tabulaeformis forest were analyzed.Spatial pattern of main tree species in arbor layer and spatial distribution of P.tabulaeformis population on different growth stages(saplings,small trees and big trees) were analyzed by Ripley's K function.The results indicated that there were 13 tree species in arbor layer,and... |
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