干旱区生态环境知识资源中心(Arid): 柴达木盆地荒漠灌丛群落谱系结构研究

Arid

	柴达木盆地荒漠灌丛群落谱系结构研究
其他题名	Phylogenetic Structure of Desert Shrub Community in Qaidam Basin
	肖元明 1; 杨路存 2; 聂秀青 1; 李长斌 1; 熊丰 1; 赵晓辉 2; 周国英 2
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2018
卷号	38 期号:4 页码:750-760
中文摘要	谱系信息是群落生态学和保育生物学研究的主要内容之一。为探究柴达木盆地荒漠灌丛群落谱系结构及其与环境因子的关系,该研究以柴达木盆地荒漠灌丛为对象,基于群落中物种存在与否的物种组成数据,使用R语言中picante软件包计算了灌丛群落谱系多样性指数和谱系结构指数,并且分析了谱系结构指数与年均温度、年均降水以及土壤含水量之间的关系,以揭示柴达木盆地灌丛群落物种之间的亲缘关系和群落生物多样性维持机制。结果表明:(1)柴达木盆地灌丛群落谱系结构与土壤含水量之间存在极显著相关性(P =2.77*10~(-6)),随着土壤含水量的增加,群落谱系结构聚集程度逐渐降低,表现出生境过滤作用逐步减弱,生物间相互作用逐渐加强的变化趋势。(2)群落谱系结构与年均温度、年均降水之间无显著相关性。(3)典型荒漠生境灌丛和河谷(河漫滩)生境灌丛群落的谱系结构差异显著(P<0.05),整体上分别表现为谱系聚集状态和谱系发散状态;河谷(河漫滩)生境灌丛群落的谱系多样性显著高于典型荒漠生境灌丛(P<0.05)。(4)将群落谱系信息应用在生物多样性保护实践中,发现河谷(河漫滩)生境灌丛群落较典型荒漠生境的灌丛群落可能具有更高的保护价值。研究认为,将群落谱系研究与保育生物学理论结合将会使生物多样性保护策略更加科学有效。
英文摘要	Phylogenetic information is a critical component of community ecology and conservation biology. In order to explore the phylogenetic community structure of desert shrub and its relationship with environmental factors in the Qaidam Basin,we selected the shrub communities as the research objects and calculated the phylogenetic community structure with picante package in R based on the species presence/absence in the community,and analyzed its relationship with mean annual temperature,mean annual precipitation and soil water content to reveal the relationship of species coexisting shrub communities and mechanism of biodiversity maintenance.The results showed that:(1)there was a significant correlation(P= 2.77*10~(-6))between the phylogenetic structure of the shrub communities and the soil water content in the Qaidam Basin,which showed that the aggregation degree of the phylogenetic community structure decreased gradually with the increase of the soil water content(SWC),suggesting the effect of habitat filtration on communities structuring weakened and biological interactions strengthened gradually.(2)There were no significant correlation between the phylogenetic community structure and the mean annual temperature, mean annual precipitation.(3)There were significant differences in the phylogenetic community structure between shrubs in typical desert habitat and in river valley(river floodplain)habitat,respectively, and showing phylogenetic clustering and over-dispersion,while the phylogenetic diversity of the shrub communities in river valley(river floodplain)habitat was also significantly higher than that of them in typical desert habitat.(4)Applying the community phylogenetic information to the practice of biodiversity conservation,we found that the shrub communities in river valley(river floodplain)habitat might have a higher conservation value than that in typical desert habitat.The study indicated that the integration of community phylogenetic research and conservation biology theory will make the biodiversity conservation strategy more scientific and efficient.
中文关键词	柴达木盆地 ; 谱系结构 ; 荒漠灌丛 ; 生物多样性保护
英文关键词	Qaidam Basin phylogenetic community structure desert shrub biodiversity conservation
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:6249500
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238488
作者单位	1.中国科学院西北高原生物研究所;;中国科学院大学, ;;, 西宁;;, ;;北京 810008;;100049; 2.中国科学院西北高原生物研究所;;中国科学院藏药研究重点实验室;;青海省青藏高原特色生物资源研究重点实验室, ;;中国科学院藏药研究重点实验室;;青海省青藏高原特色生物资源研究重点实验室, 西宁;;西宁;;西宁, ;;;; 810008;;810008;;810008
推荐引用方式 GB/T 7714	肖元明,杨路存,聂秀青,等. 柴达木盆地荒漠灌丛群落谱系结构研究[J],2018,38(4):750-760.
APA	肖元明.,杨路存.,聂秀青.,李长斌.,熊丰.,...&周国英.(2018).柴达木盆地荒漠灌丛群落谱系结构研究.西北植物学报,38(4),750-760.
MLA	肖元明,et al."柴达木盆地荒漠灌丛群落谱系结构研究".西北植物学报 38.4(2018):750-760.