| 秦岭太白山牛皮桦林初步研究 |
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| 引用本文： | 傅志军,郭俊理.秦岭太白山牛皮桦林初步研究[J].宝鸡文理学院学报(自然科学版),1994(1):79-83. |
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| 作者姓名： | 傅志军 郭俊理 |
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| 作者单位： | 宝鸡文理学院地理系 |
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| 摘 要： | 牛皮桦（Ｂｅｔｕｌａａｌｂｏ－ｓｉｎｅｎｓｉｓｖａｒ．ｓｅｐｅｎｔｒｉｏｎａｌｉｓ）林是太白山森林植被的一个重要类型，随着生境条件的不同，其种类组成发生规律的变化，但牛皮桦始终占据优势地位，并有着相对稳定的结构组成。牛皮桦林以高大粗壮的牛皮桦个体为主，林内更新苗很少，天然更新状况不良。优势种群（牛皮桦）年龄分析表明，牛皮桦种群为衰退种群。牛皮桦种群的衰退特征反映出于皮桦林的消退发展趋势。目前本区牛皮桦林多属成熟林或过熟林，应加强人工更新。
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| 关 键 词： | 牛皮桦林 种群 太白山 牛皮桦 |
PRELIMINARY STUDIES ON BETULA ALBOSINENSIS VAR. SEPTENTRIONALIS FOREST IN TAIBAI MOUNTAIN |
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| Fu Zhijun, Guo Junli, Sun Zongmin.PRELIMINARY STUDIES ON BETULA ALBOSINENSIS VAR. SEPTENTRIONALIS FOREST IN TAIBAI MOUNTAIN[J].Journal of Baoji College of Arts and Science(Natural Science Edition),1994(1):79-83. |
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| Authors: | Fu Zhijun Guo Junli Sun Zongmin |
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| Abstract: | Betula albo-sinensis var. septentrionalis forest is a important type of the forest vegetation of the Taibai Mountain region. The specific composition of Betula albo-sinensis var. septentrionalis forest is related to the ecotope conditions, but Betula albo-sinensis var. septentrionalis ususlly dominate the forest and the structre of the forest is relate stable. The analysis of Betula albosinensis var. septentrionalis population structure,dynamics and the natural regeneration indicated the Betula albo-sinensis var, septentrionalis forest abdicates.Betula albo-sinensis var. septentrionalis forest pretains to mature forest and over mature forest at present,the method of artificial regeneratin is used. |
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| Keywords: | Betula albo-sinensis var septentrionalis forest population Taibai Mountain |
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