| 天宝岩天然猴头杜鹃种群立木级结构特征研究 |
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| 引用本文： | 蒋尔可.天宝岩天然猴头杜鹃种群立木级结构特征研究[J].江西林业科技,2011(5):4-7. |
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| 作者姓名： | 蒋尔可 |
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| 作者单位： | 南平市延平区林业局,福建南平,353000 |
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| 基金项目： | 教育部博士学科点专项基金项目(20103515110005) |
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| 摘 要： | 在对天宝岩国家级自然保护区不同海拔天然猴头杜鹃林乔木种群全面调查基础上,对猴头杜鹃林进行立木分级,采用动态可比性林木分级法研究了猴头杜鹃林种群结构。研究结果表明：不同海拔天然猴头杜鹃林均以Ⅳ级木占绝对优势,该级林木株数远远大于其他级林木数量。此外,各海拔天然猴头杜鹃林Ⅳ级木数量呈现高〉低〉中,而其在相应海拔所占比例却与海拔呈正相关;低海拔天然猴头杜鹃种群处在A型种群的前中期,中海拔种群处在A型种群的后期,高海拔天然猴头杜鹃种群则处在A型种群的中后期。
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| 关 键 词： | 天宝岩国家级自然保护区 天然猴头杜鹃林 乔木种群 立木级 |
Research on Structural Characteristics at Stumpage Class of Natural Population of Rhododendron simiarum in Tianbaoyan National Nature Reserve,Fujian Province |
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| JIANG Erke.Research on Structural Characteristics at Stumpage Class of Natural Population of Rhododendron simiarum in Tianbaoyan National Nature Reserve,Fujian Province[J].Jiangxi Forestry Science and Technology,2011(5):4-7. |
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| Authors: | JIANG Erke |
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| Institution: | JIANG Erke(Yanping District Forestry Bureau of Nanping City,Nanping Fujian 355200,China) |
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| Abstract: | On base of the investigation of natural population of Rhododendron simiarum at different elevations in Tianbaoyan National Nature Reserve,the stumpage classification of the forests was conducted,and the its population structure was studied with the method of dynamic comparable tree classification.The results showed that： Ⅳ-class trees in natural Rhododendron simiarum forests at different elevations dominated,and their quantities were far more than that of other-class trees,in addition,the number of Ⅳ-class trees in the forests at all elevations showed that high elevationlowmiddle,and the proportion of Ⅳ-class trees had a positive relation with the elevation.The Rhododendron simiarum population at low elevation belonged to Type-A population in pro-metaphase,the population at middle elevation belonged to Type-A population in later period,and the population at high elevation was Type-A population in middle-later period. |
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| Keywords: | Tianbaoyan National Nature Reserve Natural Rhododendron simiarum forests Arbor population Stumpage class |
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