摘 要：
对长白山阔叶红松林的林隙环境状况、林隙内物种种间关系进行了研究。结果表明:林隙与林内物种丰富度不同,乔木物种丰富度略高于林内,而灌木和草本物种丰富度则明显高于林内;林隙内物种种间关系多数呈负相关,极显著正相关(P<0.01)和显著正相关(P<0.05)种对数较少(乔、灌、草),极显著负相关(P<0.01)和显著负相关(P<0.05)种对数也较少(乔)或没有(灌、草),物种间主要表现为竞争关系;林隙中小气候状况发生了显著改变,光照强度和空气温度显著高于林内(P<0.01),空气相对湿度和地温变化规律也表现出显著变化。
译 名：
Interspecific Relationship in Forest Gaps in Broad-leaved Korean Pine Forests in Changbai Mountains
作 者：
ZHENG Yanfeng,LIU Chunhui,WANG Lin(Academy of Forest Inventory and Planning,SFA,Beijing 100714,China)
关键词：
forest gap,broad-leaved Korean pine forests,interspecific relationship,Changbai Mountain
摘 要：
We studied micro-environment characteristics and specie correlation in forest gaps in broad-leaved Korean pine forests in Changbai Mountains.The richness in forest gaps was not similar to that under the canopy.The richness of tree layer in forest gaps was slightly higher than those under the canopy,and the richness of shrub and herb layer were significantly higher than those under the canopy.The correlation between most species showed negative correlation in forest gaps.There are less species pairs of extremely marked and marked positive correlation in tree layer,shrub and herb layer,less species pairs of extremely marked and marked negative correlation in tree layer,and no species pairs of extremely marked and marked negative correlation in shrub and herb layer.The correlation between species showed competition mainly.Microclimate showed a significant change in forest gap,light intensity and air temperature were significantly(P<0.01) higher in gaps than under canopy,the change rule of air relative humidity and soil temperature also shows large difference.
