天目山近自然毛竹纯林的竹秆空间结构特征.pdf

20112S(2)173179
孤攫獳 Univers
天目山近自然毛竹纯林的竹秆空间结构特征
邓英英烂掀,徐文兵掠栏,娄明华悦魉
.浙江农林大学环境科技学院,浙江临安;憬炷可焦壹蹲匀槐;で芾砭郑憬侔
摘要:近自然毛竹塔纯林是浙江省天日山国家级自然保护区内特殊的植被保护类型。研究近
。在浙江天日山国家
级自然保护区内。选择近自然毛竹纯林设置样卮笮∥ 100m)0Yo)
用谟虮咴敌U椒ā@媒浅叨取⒋笮”仁透蚜浠焓范个林分空闻结构指数,分析近自然毛竹纯林的竹秆
空间结构特征。结果表明:近自然状态的毛竹纯林活立竹、枯死竹和整个毛竹林的角尺度均值分别为,
和。均为聚集分布;活立竹的平均大小比教为,表明参照竹和相邻竹在胸径因子上优势不明显,竞争能
力相当:整个毛竹林的秆龄混交度均值为。接近于强度混交,表明毛竹林具有秆龄多样性和较高的秆龄相互

关键词:森林经理学;近自然毛竹纯林;空间结构;角尺度;大小比数;秆龄混交度;天日山
中图分类号: A文章编号:...
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: natural 凸 pubescens a special the
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the the structure and the partAtypical 100 m x 100 m wag
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eight correctionsThenthe spatial structure the stand was the
uniform angle parisonand 甊 the
average uniform angle index Phpubescenswas 0554for stems was 0556andfor the
stand .畐 meant a distributionTheaverage stems
was 1 1 meaning there Wills trend 甌 age was
closing which minglingThereforethisPhpubescensstand had diversity and a 【
segregation age[Ch6 tab28甝
Key wordsforest; natural Phyllostachys pubescens forestspatial籾—
angle indexneighborhood; 籑
收稿日期: 201006182010-0918
基金项目: 国家自然科学基金资助项目;浙