长白山过伐林区云冷杉针阔混交林空间结构分析  

Analysis on the Spatial Structure of the Spruce-Fir Mixed Stands of Coniferous and Broad-leaved Trees in the Over-logged Forest

作　　者：贾秀红[1] 郑小贤[2] 

机构地区：[1]华中农业大学园艺林学学院,武汉430070 [2]北京林业大学资源与环境学院,北京100083

出　　处：《华中农业大学学报》2006年第4期436-440,共5页Journal of Huazhong Agricultural University

基　　金："十五"国家科技攻关项目(2001BA510B07)资助

摘　　要：用角尺度、混交度和大小比数3个林分空间结构参数,分析了长白山过伐林区云冷杉针阔混交林的空间结构。结果表明:该林分的平均角尺度为0.504,林木分布格局为随机分布,该林分的平均混交度为0.81。说明它是一个由不同树种呈现强度混交结构状态组成的复杂森林群落。针叶树种具有胸径和树高的优势,尤其是红松的直径和树高最突出。Three parameters , which are neighborhood pattern,mingling and neighborhood comparison,are used to describe spatial structure of the spruce-fir mixed stands of coniferous and broad-leaved trees in the over-logged forest of Changbai Mountains. The neighborhood pattern of the stand is 0. 504; which shows the distribution of trees in this stand is random; the average mingling in the stand is 0. 81, which indicates the stand has the high mixed degree; the coniferous trees （esp. Korean pine ） are dominant at DBH neighborhood comparison and height neighborhood comparison.

关 键 词：云冷杉针阔混交林 角尺度 混交度 大小比数 

分 类 号：S758.8[农业科学—森林经理学]