摘要
在天山西部根据生境特点设置90个1m×1m草本样方,研究了天山云杉林草本植物的物种多样性季节动态。结果表明:共调查到162种草本植物,隶属于34科、110属。草本植物多样性季节变化明显,生长季内物种数、Gleason丰富度指数、Simpson和Shannon-Wiener多样性指数均呈单峰型分布,即6、7月最高,4、9月最低。不同生境草本植物多样性变化明显,阴坡和林缘生境草本植物多样性最高,林冠干扰明显的生境中物种多样性最低。因此,草本植物多样性季节变化受微生境和人为干扰影响。
901 m × 1 m herb plots were established according to the characteristics of habitat in west Tianshan in Xinjiang.The seasonal dynamics of herbaceous species diversity were studied in a Picea schrenkiana.var tianschanica forest.The results show that： 162 species belonging to 34 families,110 genus were recorded.The diversity of herbaceous species changed obviously with the change of months.The number of species,Gleason richness index,Simpson index and Shannon-Wiener index showed unimodal distribution.They reached the peak in June and July,and the minimum in April and September.The diversity of herbaceous species was affected by habitat types.It reached the peak in shady slope and forest edge.And the diversity of herbaceous species is the lowest in forest canopy gaps.Thus,seasonal dynamics of herbaceous species diversity were affected by microhabitat and human disturbance.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2014年第10期100-103,共4页
Journal of Arid Land Resources and Environment
基金
新疆少数民族科技人才特殊培养计划(201023102)
国家林业公益性行业科研专项项目(200904022)
新疆维吾尔自治区森林培育重点学科资助
关键词
草本植物
季节动态
物种多样性
生境
天山云杉林
herbs
seasonal dynamics
species diversity
habitat
Picea schrenkiana var.tianshanica forest
