摘要
采用样方调查的方法,分别用重要值、丰富度指数、多样性指数、均匀度指数和相似性指数对通天河国家森林公园山地不同坡向次生林群落各层次物种多样性指数进行了对比分析。结果表明:(1)阴坡各层重要值最高的是华山松、旱柳和银线草,阳坡各层重要值最高的是锐齿栎、忍冬和秦岭蟹甲草。(2)阴坡与阳坡物种多样性具有显著差异。(3)阳坡灌木层的相似系数小于阴坡,阴坡草本层的相似系数小于阳坡。
By using plot investigation,the species diversities under secondary forest communities were studied on different slope aspects in national forest park of Tongtianhe river by Importance value,Species richness index,Species diversity index,Evenness index and Similarity coefficient index.The results showed that：（1）The highest importance value of tree layer,shrub layer and herb layer shady slope is Pinus armandi,Salix matsudana and Chloranthus japonicus.The highest importance value of tree layer,shrub layer and herb layer sunny slope is Quercusa liena,Lonicera japonica and Cacalia tsinlingensis;（2）The species diversity is significant difference between the shady slope and the sunny slope;（3）The Similarity coefficient index of shrub layer on the sunny slope was significantly less than on the shady slope.The Similarity coefficient index of herb layer on the shady slope was significantly less than on the sunny slope.
出处
《水土保持研究》
CSCD
北大核心
2011年第4期197-202,共6页
Research of Soil and Water Conservation
基金
科技部国家科技基础性工作专项重点项目(2007FY110800)
关键词
秦岭山地
次生林
不同坡向
物种多样性
Qinling Mountains
secondary forest
different slope aspect
species diversity
