Soil space and nutrients differentially promote the growth and competitive advantages of two invasive plants

doi:10.1093/jpe/rtt050

	Soil space and nutrients differentially promote the growth and competitive advantages of two invasive plants
	Gao, Yan ; Yu, Hong-Wei ; He, Wei-Ming
	2014
发表期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
卷号	7 期号:4 页码:396-402
摘要	Invasive plants commonly occupy disturbed soils, thereby providing a stage for understanding the role of disturbance-enhanced resources in plant invasions. Here, we addressed how soil space and soil nutrients affect the growth and competitive effect of invasive plants and whether this effect varies with different invaders. We conducted an experiment in which two invasive plants (Bromus tectorum and Centaurea maculosa) and one native species (Poa pratensis) were grown alone or together in four habitats consisting of two levels of soil space and nutrients. At the end of the experiment, we determined the total biomass, biomass allocation and relative interaction intensity of B. tectorum, C. maculosa and P. pratensis. Across two invaders, B. tectorum and C. maculosa, increased soil nutrients had greater positive effects on their growth than increased soil space, the effects of soil space on root weight ratio were greater than those of soil nutrients, and their competitive effect decreased with soil space but increased with soil nutrients. These findings suggest that changing soil space and nutrients differentially influence the growth and competitive advantages of two invaders. Bromus tectorum benefited more from increased soil resources than C. maculosa. Soil space and nutrients affected the biomass allocation of C. maculosa but not B. tectorum. The competitive effect of B. tectorum was unaffected by soil space and soil nutrients, but the opposite was the case for C. maculosa. Thus, the effects of soil space and nutrients on growth and competitive ability depend on invasive species identity.
关键词	biomass Bromus tectorum Centaurea maculosa competitive ability Poa pratensis soil nutrients soil space
学科领域	Plant Sciences ; Ecology ; Forestry
DOI	10.1093/jpe/rtt050
收录类别	SCI
语种	英语
WOS关键词	BIOGEOGRAPHIC DIFFERENCES ; RESOURCE AVAILABILITY ; WATER RELATIONS ; NITROGEN ; GRASS ; INVASIBILITY ; DISTURBANCE ; ECOSYSTEMS ; LIMITATION ; SEEDLINGS
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS记录号	WOS:000339917700009
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1752-993X
资助机构	National Natural Science Foundation of China [31170507] ; State Key Laboratory of Vegetation and Environmental Change [2011zyts02]
作者邮箱	weiminghe@ibcas.ac.cn
作品OA属性	Bronze
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27196
专题	植被与环境变化国家重点实验室
作者单位	1.[Gao, Yan 2.Yu, Hong-Wei 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yan,Yu, Hong-Wei,He, Wei-Ming. Soil space and nutrients differentially promote the growth and competitive advantages of two invasive plants[J]. JOURNAL OF PLANT ECOLOGY,2014,7(4):396-402.
APA	Gao, Yan,Yu, Hong-Wei,&He, Wei-Ming.(2014).Soil space and nutrients differentially promote the growth and competitive advantages of two invasive plants.JOURNAL OF PLANT ECOLOGY,7(4),396-402.
MLA	Gao, Yan,et al."Soil space and nutrients differentially promote the growth and competitive advantages of two invasive plants".JOURNAL OF PLANT ECOLOGY 7.4(2014):396-402.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Gao-2014-Soil space （512KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文