八达岭辽东栎-油松混交林空间结构及其多样性  

Study of spatial structure and species diversity of Quercus liaotungensis-Pinus tabulaeformis mixed stand in Badaling forest farm

作　　者：罗梅[1] 郑小贤[1] 

机构地区：[1]北京林业大学,省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《中南林业科技大学学报》2012年第9期55-58,共4页Journal of Central South University of Forestry & Technology

基　　金：林业公益性行业科研专项(20100400203);高等学校博士点课题(20090014110013)

摘　　要：以北京八达岭林场辽东栎-油松混交林为研究对象,选取混交度(M)、大小比数(U)、角尺度(W)分析了林分的空间结构;以物种丰富度S、Simpson指数DS、Shannon-Wiener指数H、均匀度指数JD、JH分析了林分的物种多样性。结果表明:林分的平均混交度为0.46,混交度较低;胸径平均大小比数为0.5,林分处于中庸状态;平均角尺度为0.566,为团状分布;林分草本层物种较为丰富,但均匀度不及灌木层。本研究旨在为八达岭林场的辽东栎-油松混交林可持续经营提供一定的依据。By choosing Quercus liaotungensis-Pinus tabulaeformis mixed stand in Beijing Badaling forest farm as the studied object,selecting the mingling（M）,neighborhood comparison（U）,neighborhood pattern（W） as the variables,the spatial structure of the stand was studied;by using the methods of species richness S,Simpson index DS,Shannon-Wiener index H,evenness index JD,JH,the species diversity of the stand was analyzed.The results show that the average mingling of stand was 0.46,it was lower;the average neighborhood comparison of stand was 0.5,it was at？middle level;the average neighborhood pattern of stand was 0.566,it was under group-like distribution;the species of herb layer was richer than the shrub layer,but the evenness was less than the shrub layer.This study aims to provide a basis for the sustainable management of Quercus liaotungensis-Pinus tabulaeformis mixed stand in Badaling forest farm.

关 键 词：混交度 大小比数 角尺度 物种多样性 

分 类 号：S792.189[农业科学—林木遗传育种]