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福建光泽天然林中南方铁杉的种内与种间竞争
引用本文:罗金旺.福建光泽天然林中南方铁杉的种内与种间竞争[J].林业科技开发,2011,25(4):71-74.
作者姓名:罗金旺
作者单位:福建光泽县林业科学技术推广中心,福建光泽,354100
基金项目:福建省科技厅科技攻关重点项目(编号:2008Y0077)
摘    要:通过各种竞争指数的比较,提出采用Hegyi单木竞争指数模型研究福建光泽天然林中南方铁杉在生长发育过程中受到的种内和种间竞争强度。结果表明,南方铁杉受到的种内竞争指数为52.03,高于任一其他树种的竞争指数,但低于种间竞争指数总和(164.08)。南方铁杉受到的种间和种内竞争大小顺序为:南方铁杉>木荷>猴头杜鹃>甜槠>棕脉花楸>小叶青冈>鹿角杜鹃>厚叶红淡比>黄山松>鼠刺叶石栎>野漆>吴茱萸五加>厚叶厚皮香>柳杉>枫香>榕冬青>石灰花楸>马醉木>树参>冬青>银钟花。南方铁杉对象木受到的竞争强度随着对象木径级的增大呈明显减少趋势。当对象木胸径大于30 cm后,个体受到的竞争强度趋于稳定。竞争指数与对象木胸径的关系呈幂函数关系。

关 键 词:南方铁杉  种内竞争  种间竞争  竞争指数

Intra and interspecific competition in Tsuga chinensis var.tchekiangensis in a natural forest in Guangze Fujian,China
LUO Jin-wang.Intra and interspecific competition in Tsuga chinensis var.tchekiangensis in a natural forest in Guangze Fujian,China[J].China Forestry Science and Technology,2011,25(4):71-74.
Authors:LUO Jin-wang
Institution:LUO Jin-wang Guangze Forestry Science and Technology Promotion Center,Guangze 354100,Fujian,China
Abstract:Hegyi's single-tree competition index was selected from several competition indices and to be used for the intra-and interspecific competition intensities of Tsuga chinensis var.tchekiangensis trees in a natural forest in Guzngze,Fujian,China.The results showed that the intraspecific competition intensity of T.chinensis var.tchekiangensis was 52.03,and was higher than any other interspecific competition intensities,but lower than the sum of all the interspecific competition intensities (164.08).The order of...
Keywords:Tsuga chinensis var  tchekiangensis  intraspecific competition  interspecific competition  competition index  
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