| 王朗自然保护区岷江冷杉林(Abies faxoniana)更新及其种群结构分析 |
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| 引用本文： | 谭留夷,赵志江,康东伟,康文,李俊清.王朗自然保护区岷江冷杉林(Abies faxoniana)更新及其种群结构分析[J].四川林业科技,2011,32(1):31-37. |
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| 作者姓名： | 谭留夷 赵志江 康东伟 康文 李俊清 |
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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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| 基金项目： | 林业公益林行业科研专题，十一五科技支撑资助 |
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| 摘 要： | 岷江冷杉(Abies faxoniana)林是四川王朗自然保护区主要群落类型,本文选择典型的亚高山针叶原始林设置标准样地,对其幼苗幼树查数轮生枝、大树钻取树轮样芯确定个体年龄,分别建立苗高-年龄、胸径-年龄的回归方程得到整个种群的年龄结构,通过编制生命表对其进行生存分析.结果表明,岷江冷杉存活曲线属于Deevey-Ⅲ型...
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| 关 键 词： | 岷江冷杉 种群结构 更新量 气候因子 生存分析 |
Research on Regeneration Impact factors and Population Structure of Abies faxoniana in Wanglang Nature Reserve, Sichuan Province |
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| TAN Liu-yi,ZHAO Zhi-jiang,KANG Dong-wei,KANG Wen,LI Jun-qing.Research on Regeneration Impact factors and Population Structure of Abies faxoniana in Wanglang Nature Reserve, Sichuan Province[J].Journal of Sichuan Forestry Science and Technology,2011,32(1):31-37. |
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| Authors: | TAN Liu-yi ZHAO Zhi-jiang KANG Dong-wei KANG Wen LI Jun-qing |
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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: | Abies faxoniana forest is a major forest type in Wanglang National Nature Reserve.This paper established a standard sample plot to study regeneration impact factors and population structure of Abies faxoniana.The age structure of trees was estimated by counting branches or tree-rings and by establishing regression to get age structure.Analysis was made of the population dynamics by creating the age-specific life table and drawing the survivorship curve,mortality curve,and hazard rate curve based on the age structure.The results showed that the survivorship curve of Abies faxoniana was a Deevey-Ⅲ type.There existed two peaks of mortality in the lifespan,one was from seedlings to young trees（0～30 years）.Saplings banks were rich but had a high mortality ratio.The relationship between climatic factors and regeneration of Abies faxoniana during the past 23 years was analyzed by using climate data.The result showed that the temperature was a key factor that would influence the natural regeneration of Abies faxoniana.There was a positive correlation between regeneration and temperature in August.But the annual mean precipitation and accumulated sunshine hours negatively related to the regeneration. |
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| Keywords: | Abies faxoniana Population structure Survival analysis Regeneration Climatic factors |
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