干旱区生态环境知识资源中心(Arid): Sensitivity of dryland plant allometry to climate

Arid

DOI	10.1111/1365-2435.13463
	Sensitivity of dryland plant allometry to climate
	Rudgers, Jennifer A.; Hallmark, Alesia; Baker, Stephanie R.; Baur, Lauren; Hall, Kristofer M.; Litvak, Marcy E.; Muldavin, Esteban H.; Pockman, William T.; Whitney, Kenneth D.
通讯作者	Rudgers, Jennifer A.
来源期刊	FUNCTIONAL ECOLOGY
ISSN	0269-8463
EISSN	1365-2435
出版年	2019
卷号	33 期号:12 页码:2290-2303
英文摘要	Patterns of plant biomass partitioning are fundamental to estimates of primary productivity and ecosystem process rates. Allometric relationships between above-ground plant biomass and non-destructive measures of plant size, such as cover, volume or stem density are widely used in plant ecology. Such size-biomass allometry is often assumed to be invariant for a given plant species, plant functional group or ecosystem type. Allometric adjustment may be an important component of the short- or long-term response of plants to abiotic conditions. We used 18 years of size-biomass data describing of 85 plant species to investigate the sensitivity of allometry to precipitation, temperature or drought across two seasons and four ecosystems in central New Mexico, USA. Size-biomass allometry varied with climate in 65%-70% of plant species. Closely related plant species had similar sensitivities of allometry to natural spatiotemporal variation in precipitation, temperature or drought. Annuals were less sensitive than perennials, and forbs were less sensitive than grasses or shrubs. However, the differences associated with plant life history or functional group were not independent of plant evolutionary history, as supported by the application of phylogenetically independent contrasts. Our results demonstrate that many plant species adjust patterns in the partitioning of above-ground biomass under different climates and highlight the importance of long-term data for understanding functional differences among plant species. A free Plain Language Summary can be found within the Supporting Information of this article.
英文关键词	arid Chihuahuan Desert climate change drought ecosystem long-term ecological research net primary production phylogenetic
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000494216100001
WOS关键词	NET PRIMARY PRODUCTION ; BIOMASS ALLOCATION ; ABOVEGROUND BIOMASS ; LIFE-HISTORY ; ELEVATED CO2 ; GRASSLANDS ; RESPONSES ; PLASTICITY ; LEAVES ; TRAITS
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-10-23
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310340
作者单位	Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	Rudgers, Jennifer A.,Hallmark, Alesia,Baker, Stephanie R.,et al. Sensitivity of dryland plant allometry to climate[J],2019,33(12):2290-2303.
APA	Rudgers, Jennifer A..,Hallmark, Alesia.,Baker, Stephanie R..,Baur, Lauren.,Hall, Kristofer M..,...&Whitney, Kenneth D..(2019).Sensitivity of dryland plant allometry to climate.FUNCTIONAL ECOLOGY,33(12),2290-2303.
MLA	Rudgers, Jennifer A.,et al."Sensitivity of dryland plant allometry to climate".FUNCTIONAL ECOLOGY 33.12(2019):2290-2303.