| 兴安落叶松天然林枯立木年龄结构的研究 |
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| 引用本文： | 孟宪宇,俞宁. 兴安落叶松天然林枯立木年龄结构的研究[J]. 河北林果研究, 1992, 0(1) |
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| 作者姓名： | 孟宪宇 俞宁 |
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| 作者单位： | 北京林业大学(孟宪宇)，北京林业大学(俞宁) |
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| 摘 要： | 本文用兴安落叶松天然林19块标准地资料,分析了林分枯立木年龄结构;并用三参数Weibull函数拟合了林分枯立木的龄阶分布,经X~2-检验,结果表明拟合效果良好。同时研究了林分活立木年龄与枯立木年龄之间的关系以及天然林的抚育问题。
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| 关 键 词： | 枯立木年龄结构 枯立木龄阶分布 兴安落叶松 |
STUDY ON AGE STRUCTURE OF DEAD STANDING TREE IN NATURAL LARIX GMELINI STANDS |
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| Meng Xianyu,Yu Ming. STUDY ON AGE STRUCTURE OF DEAD STANDING TREE IN NATURAL LARIX GMELINI STANDS[J]. Hebei Journal of Forestry and Orchard Research, 1992, 0(1) |
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| Authors: | Meng Xianyu Yu Ming |
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| Affiliation: | Beijing Forestry College |
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| Abstract: | The data of 19 plots in the natural stands of Larix gmelini (Rupr.) Rupr., were used to analyze the age structure of the dead standing tree.The three-parameter Weibull function was adopted to fit the age gradation distribution of the dead standing tree in the stands. As shown by the X2-test, the three-parameter Weibull function is satisfactory for the purpose.The relations between the age of standing trees and the age of the dead standing trees in the stands were studied, and the problems of tending natural stand were discussed. |
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| Keywords: | age structure of dead standing tree age gradation distribution of dead standing tree Larix gmelini (Rupr.) Rupr. |
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