长白山北坡阔叶红松林空间结构  

Horizontal Spatial Structure of Korean Pine Broad-leaved Forest in Northern Slope of Changbai Mountains

作　　者：夏富才[1] 姚大地[1] 赵秀海[2] 潘春芳[2] 汪金松[2] 张杨[3] 

机构地区：[1]北华大学,吉林132013 [2]省部共建森林培育与保护教育部重点实验室(北京林业大学) [3]吉林市园林管理处

出　　处：《东北林业大学学报》2009年第10期5-7,共3页Journal of Northeast Forestry University

基　　金：国家"十五"科技攻关项目(2001BA510B0704);教育部"高校青年教师奖励计划"(2000103)

摘　　要：利用混交度、大小比数和角尺度等结构参数,分析了长白山阔叶红松林的空间结构;用平均混交度和混交度分布,分析了林分的树种空间配置情况,得到该种林分总体上处于中度混交的水平。树种的混交度和分布格局与繁殖方式有关。处于乔木上层和中层的树种混交度以强度和极强度混交为主,明显高于乔木下层主要以营养繁殖为主的槭属类植物的混交度。上层乔木的平均大小比数为0.27,与中层乔木的0.40和下层乔木的0.55相比,处于相对优势的地位。角尺度分析表明,该群落整体上以聚集分布为主。Three parameters, mingling, neighborhood comparison, and uniform angle index, were used together to analyze and describe the spatial structure of Korean pine broad-leaved forest in the northern slope of Changbai Mountains. Results show that the Korean pine broad-leaved forest is at a medium level of mingling by analyzing the spatial collocation of tree species in terms of mean mingling intensity and distribution of mingling intensity. The mingling intensity and distribution pattern of tree species are affected by reproduction mode. The mingling of trees situated in the upper and middle layers was intensive or extremely intensive, which is more intensive than that of the aceraceous trees mainly situated in the lower storey. The average values of neighborhood comparisons measured by DBH of trees in the upper, middle, and lower layers are 0.27, 0.40 and 0.55, respectively, and the arbor trees in the upper layer are dominant. Analysis of uniform angle index indicates that aggregated distribution is the main spatial characteristics of the Korean pine broad-leaved forest in the northern slope of Changbai Mountains.

关 键 词：阔叶红松林 空间结构 混交度 大小比数 角尺度 

分 类 号：Q948[生物学—植物学]