干旱区生态环境知识资源中心(Arid): 拉萨河谷植物群落分类与排序及物种丰富度与环境的关系

Arid

	拉萨河谷植物群落分类与排序及物种丰富度与环境的关系
其他题名	Classification and ordination of plant communities and the relationship between species richness and environmental factors in Lhasa valley
	张燕杰 1; 崔玲玲 1; 庞有智 2; 刘杰 1; 拉多 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2015
卷号	34 期号:12 页码:3289-3299
中文摘要	以拉萨河谷区域的植物群落为研究对象,设置30个样地、90个植物样方,运用双向指示种分析法(TWINSPAN)进行群落的分类分析,运用除趋势对应分析法(DCA)进行群落的排序分析,运用广义可加模型(GAM)进行转换后的物种丰富度(TSR)与海拔、覆盖度、纬度、经度的关系分析。TWINSPAN分类将拉萨河谷的植物群落分为8组,即落叶阔叶林、落叶阔叶灌丛、根茎苔草草甸和丛生嵩草草甸、常绿针叶灌丛草甸和落叶阔叶灌丛草甸、落叶阔叶灌丛草原、丛生禾草荒漠、落叶阔叶灌丛荒漠、小半灌木荒漠,很好地反映了群落的间断性; DCA排序的样方排序结果与TWINSPAN 数量分类结果基本一致,很好地反映了群落的连续性及其生境的异质性,DCA排序结果表明,湿度是拉萨河谷植物分布的主导因素; GAM拟合模型显示,TSR沿海拔梯度的分布格局为低-高-低-高-低的双峰格局。
英文摘要	The plant community structure and the relationship between species richness and environmental factors in Lhasa valley located in the south central of Tibet Autonomous Region were studied,with 30 plots and 90 quadrats,by using two-way indicator species analysis (TWINSPAN),detrended correspondence analysis (DCA) and generalized additive model (GAM) . TWINSPAN classification identified 8 groups of plant communities,including deciduous broadleaf forest,deciduous broad-leaf shrubs,Carex form rhizomatous meadow and Kobresia form caespitose meadow,evergreen needle-leaf scrubs meadow and deciduous broad-leaf shrubs meadow, deciduous broad-leaf shrubs steppe,caespitose grass desert,deciduous broad-leaf shrubs desert, and half-shrub desert,reflecting the intermittency of communities. TWINSPAN classification results were consistent with DCA ordination results,well reflecting the continuity of communities and the heterogeneity of habitats. DCA ordination indicated that moisture was the main factor influencing vegetation composition and distribution in the study area. The fitted line of transformed species richness (TSR) along the elevation gradient based on GAM showed a tendency of bimodal curve.
中文关键词	植物群落 ; 数量分类分析 ; 除趋势对应分析 ; 广义可加模型 ; 拉萨河谷
英文关键词	plant community TWINSPAN DCA GAM Lhasa valley
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5604128
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233248
作者单位	1.西藏大学理学院, 拉萨, 西藏 850000, 中国; 2.内江师范学院地理与资源科学学院, 内江, 四川 641100, 中国
推荐引用方式 GB/T 7714	张燕杰,崔玲玲,庞有智,等. 拉萨河谷植物群落分类与排序及物种丰富度与环境的关系[J],2015,34(12):3289-3299.
APA	张燕杰,崔玲玲,庞有智,刘杰,&拉多.(2015).拉萨河谷植物群落分类与排序及物种丰富度与环境的关系.生态学杂志,34(12),3289-3299.
MLA	张燕杰,et al."拉萨河谷植物群落分类与排序及物种丰富度与环境的关系".生态学杂志 34.12(2015):3289-3299.