干旱区生态环境知识资源中心(Arid): The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks

Arid

DOI	10.1016/j.ecolind.2022.108894
	The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks
	Gao, Dexin; Wang, Shuai; Wei, Fangli; Wu, Xutong; Zhou, Sha; Wang, Lixin; Li, Zidong; Chen, Peng; Fu, Bojie
通讯作者	Wang, S
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2022
卷号	139
英文摘要	The ecosystems were characterized by complex, nonlinear interactions determined by different plant functional traits. The characteristics of the multiple relationships between ecosystem functional traits affected the vulnerability to drought. A three-level network analysis on instead of the network metrics, relationships among inter-components, and essential traits was conducted in dryland ecosystems of China. The new network of functional traits included leaf, root, and biomass components was constructed to simulate different aridity conditions. Results show that the multiple relationships of functional traits that co-regulated ecosystem biomass differ along an aridity gradient. The highest network modularity and degree centrality were observed in the semiarid ecosystems indicating low integration and high sensitivity of semi-arid ecosystems (269% and 23.7% higher than in dry sub-humid site, and 142% and 51.1% higher than arid sites). The leaf quantity strongly affected the connection between functional traits at the semi-arid zone. The semi-arid areawas found to have relatively low resistance to environmental change because of low integration and high sensitivity of the ecosystem structure at that site. An increase of degree centrality of the root traits and trade-off relationships between roots and leaves indicated greater allocation of resources by vecgetation to underground components by the arid ecosystems to increase water absorption. The study reveals the complex relationships between leaf, root, and biomass components, and the essential traits of the ecosystem. It enhanced understanding of the vulnerability of semi-arid ecosystems to environmental change.
英文关键词	Network Grassland Ecosystem function Functional traits Dryland
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000804692500009
WOS关键词	USE EFFICIENCY ; VARIABILITY ; COMMUNITIES ; DRYLANDS ; WATER
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392318
推荐引用方式 GB/T 7714	Gao, Dexin,Wang, Shuai,Wei, Fangli,et al. The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks[J],2022,139.
APA	Gao, Dexin.,Wang, Shuai.,Wei, Fangli.,Wu, Xutong.,Zhou, Sha.,...&Fu, Bojie.(2022).The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks.ECOLOGICAL INDICATORS,139.
MLA	Gao, Dexin,et al."The vulnerability of ecosystem structure in the semi-arid area revealed by the functional trait networks".ECOLOGICAL INDICATORS 139(2022).