天山云杉林草本层物种多样性及季节动态研究  

Species diversity and seasonal dynamics of herbs in Picea schrenkiana var. tianschanica forest in Tianshan Mountain,Xinjiang

作　　者：叶尔江.拜克吐尔汉 夏富才[3] 张春雨[4] 赵秀海[4] 

机构地区：[1]新疆农业大学林学与园艺学院,乌鲁木齐830052 [2]新疆干旱区林业生态与产业技术重点实验室,乌鲁木齐830052 [3]北华大学林学院,吉林132013 [4]北京林业大学森林资源与生态系统过程北京市重点实验室,北京100083

出　　处：《干旱区资源与环境》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

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.

关 键 词：草本植物 季节动态 物种多样性 生境 天山云杉林 

分 类 号：S812[农业科学—草业科学]