干旱区生态环境知识资源中心(Arid): Soil moisture and species richness interactively affect multiple ecosystem functions in a microcosm experiment of simulated shrub encroached grasslands

Arid

DOI	10.1016/j.scitotenv.2021.149950
	Soil moisture and species richness interactively affect multiple ecosystem functions in a microcosm experiment of simulated shrub encroached grasslands
	Xu, Yujuan; Dong, Ke; Jiang, Man; Liu, Yulin; He, Luoyang; Wang, Jinlong; Zhao, Nianxi; Gao, Yubao
通讯作者	Zhao, NX (corresponding author), Nankai Univ, Coll Life Sci, Dept Plant Biol & Ecol, 94 Weijin Rd, Tianjin 300071, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	803
英文摘要	Understanding relationships between biodiversity and ecosystem functions (BEF) and the way in which ecosystem functions respond to changing climatic conditions or community composition is useful for predicting ecological consequences of global changes. However, how soil moisture condition, plant species richness interactively affect ecosystem functions in shrub-encroached grasslands is poorly understood. We conducted a soil moisture x species richness microcosm experiment using semi-arid grassland species with a N-fixing shrub Caragana microphylla Lam. as the dominant species to evaluate how soil moisture and plant species richness affected ecosystem functions directly or indirectly via regulating community functional structure, such as community weighted mean values (CWM) and functional dispersion (FDis). Soil moisture and species richness interactively affected soil functions (soil C-, N-, P cycles and soil multifunctionality), with greater species richness buffering the adverse effects of soil drought. Soil moisture and species richness showed opposite effects on FDis but similar effects on CWM. FDis mediated the indirect effect of soil moisture and species richness on ecosystem functions, while CWM only mediated the indirect effect of soil moisture. More specifically, both soil moisture and plant species richness were negatively associated with soil P cycle, and the CWMPC1 contributed by traits related to resource-conservative strategy was positively associated with soil N cycle. Species richness showed a positive direct effect on total shoot biomass, which was mainly contributed by the complementarity effect of neighbor species richness. This study provides strong empirical support of how biomass and soil nutrient cycles respond to the changes of soil moisture and plant species richness in C. microphylla shrub-encroached grasslands, and insights on the mechanisms underlying the interactive effects of soil condition and community species composition on multiple ecosystem functions in N-fixing shrub encroached grasslands in semi-arid grassland regions. (C) 2018 Elsevier B.V. All rights reserved.
英文关键词	Shrub-encroached grasslands Ecosystem functions Species richness N-fixing shrub Drought Plant functional traits Multifunctionality
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000709082400008
WOS关键词	CARAGANA-MICROPHYLLA ; PLANT DIVERSITY ; POSITIVE INTERACTIONS ; BIODIVERSITY ; MULTIFUNCTIONALITY ; NITROGEN ; COMPLEMENTARITY ; PRODUCTIVITY ; ASSOCIATIONS ; COMMUNITIES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374487
作者单位	[Xu, Yujuan; Dong, Ke; Jiang, Man; Liu, Yulin; He, Luoyang; Zhao, Nianxi; Gao, Yubao] Nankai Univ, Coll Life Sci, Dept Plant Biol & Ecol, 94 Weijin Rd, Tianjin 300071, Peoples R China; [Wang, Jinlong] Tianjin Agr Univ, Coll Agron & Resources & Environm, 22 Jinjing Rd, Tianjin 300384, Peoples R China
推荐引用方式 GB/T 7714	Xu, Yujuan,Dong, Ke,Jiang, Man,et al. Soil moisture and species richness interactively affect multiple ecosystem functions in a microcosm experiment of simulated shrub encroached grasslands[J],2022,803.
APA	Xu, Yujuan.,Dong, Ke.,Jiang, Man.,Liu, Yulin.,He, Luoyang.,...&Gao, Yubao.(2022).Soil moisture and species richness interactively affect multiple ecosystem functions in a microcosm experiment of simulated shrub encroached grasslands.SCIENCE OF THE TOTAL ENVIRONMENT,803.
MLA	Xu, Yujuan,et al."Soil moisture and species richness interactively affect multiple ecosystem functions in a microcosm experiment of simulated shrub encroached grasslands".SCIENCE OF THE TOTAL ENVIRONMENT 803(2022).