摘要
根据野外调查数据,运用Hegyi单木竞争指数模型,定量分析了长白山红松针阔混交林中红松的种内、种间竞争关系.结果表明:长白山红松针阔混交林内,红松的平均种内竞争强度为0.269 9,竞争强度随着红松林木径级的增大而减小.总体来说,红松的种内竞争强度高于种间竞争.
Using Hegyirs competition index model for individual tree, intra-specific and inter-specific competitions of Pinus koraiensis broadleaf mixed forest in Changbai Mountains were analyzed. Data showed that intra-specific competition intensity for Pinus koraiensis was 0. 269 9, this was reduced with increased diameter classes. Intra-specific competition was much larger than inter-specific competition in Pinus koraiensis broadleaf mixed forest.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第4期428-431,共4页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金资助项目(40871120)
东北师范大学校内青年基金资助项目(20090605)
关键词
长白山
红松
种内竞争
种间竞争
竞争指数
Changbai Mountains
Pinus koraiensis
intraspecific competition
interspecific competition
competition index
