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| 武夷山区域南方铁杉种群密度效应模型 | |
| 引用本文： | 何建源,游巍斌,吴焰玉,柯贤石,徐自坤,方燕鸿,郑群力.武夷山区域南方铁杉种群密度效应模型[J].福建林学院学报,2010,30(1). |
| 作者姓名： | 何建源 游巍斌 吴焰玉 柯贤石 徐自坤 方燕鸿 郑群力 |
| 作者单位： | 1. 武夷山国家级自然保护区管理局,福建,武夷山,354300 2. 福建农林大学生命科学学院,福建,福州,350002 3. 武夷山生物研究所,福建,武夷山,354300 |
| 基金项目： | 福建省重点科技基金资助项目(2007N01010340) |
| 摘 要： | 利用种群密度效应模型N=exp(aln2S+blnS+c)对南方铁杉种群密度变化过程进行拟合,其中N为单位面积株数;S为林分单株平均胸高断面积;a、b、c为待定参数,模型拟合结果为N=exp(4.38515ln2S+11.94198lnS+10.73876),相关系数r=0.8895,拟合效果较好;同时,对伴生树种的种群密度进行拟合,发现伴生树种的相关系数r=0.5532,拟合效果不佳。模型模拟结果表明,南方铁杉种群密度变化机制既受其自疏作用的影响,也受其伴生树种他疏作用的制约,但自疏是影响南方铁杉种群密度减少的主要原因。模型较好地描述了南方铁杉种群密度效应规律,可应用于指导其密度调节与控制。 |
| 关 键 词： | 南方铁杉 密度 密度效应模型 |
Study on the density effect model of Tsuga tchekiangensis population in Wuyi Mountain area |
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| HE Jian-yuan,YOU Wei-bin,WU Yan-yu,KE Xian-shi,XU Zi-kun,FAN Yan-hong,ZHENG Qun-li.Study on the density effect model of Tsuga tchekiangensis population in Wuyi Mountain area[J].Journal of Fujian College of Forestry,2010,30(1). | |
| Authors: | HE Jian-yuan YOU Wei-bin WU Yan-yu KE Xian-shi XU Zi-kun FAN Yan-hong ZHENG Qun-li |
| Institution: | 1.Administrative Bureau of Wuyishan National Nature Reserve;Wuyishan;Fujian 354300;China;2.College of Life Science;Fujian Agriculture and Forestry University;Fuzhou;Fujian 350002;3.Wuyishan Institute of Biology;China |
| Abstract: | The density effect of Tsuga tchekiangensis population was analyzed by the theoretical model describing the whole density change process of plant population,i.e.,N=exp(aln2S+blnS+c) where N and S represent population density and mean basal area of at breast height respectively,and a,b,c are parameters.The result of which was described as N=exp(4.385 15ln2S+11.941 98lnS+10.738 76) r=0.889 5.At the same time,there is a poor correlation r=0.553 2,by simulating the population density of species associated specie... |
| Keywords: | Tsuga tchekiangensis density density effect model |
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