干旱区生态环境知识资源中心(Arid): Biotic and abiotic drivers of ecosystem multifunctionality: Evidence from the semi-arid grasslands of northern China

Arid

DOI	10.1016/j.scitotenv.2023.164158
	Biotic and abiotic drivers of ecosystem multifunctionality: Evidence from the semi-arid grasslands of northern China
	Wang, Congwen; Yu, Wanying; Ma, Linna; Ye, Xuehua; Erdenebileg, Enkhmaa; Wang, Renzhong; Huang, Zhenying; Indree, Tuvshintogtokh; Liu, Guofang
通讯作者	Huang, ZY ; Liu, GF
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	887
英文摘要	Ecosystem functioning plays a crucial role in maintaining human welfare. Terrestrial ecosystems provide multiple ecosystem services simultaneously, such as carbon sequestration, nutrient cycling, water purification, and biodiversity conservation, known as ecosystem multifunctionality (EMF). However, the mechanisms by which biotic and abiotic factors, and their interactions regulate EMF in grasslands are unclear. We conducted a transect survey to illustrate the single and combined effects of biotic factors (including plant species diversity, trait-based functional diversity, community-weighted mean (CWM) of traits, and soil microbial diversity) and abiotic factors (including climate and soil) on EMF. Eight functions were investigated, including aboveground living biomass and litter biomass, soil bacterial biomass, fungal biomass, arbuscular mycorrhizal fungi biomass, and soil organic carbon storage, total carbon storage and total nitrogen storage. We detected a significant interactive effect between plant species diversity and soil microbial diversity on the EMF; Structural equation model showed that soil microbial diversity indirectly affected EMF by regulating plant species diversity. These findings highlight the importance of the interaction effect of aboveand below-ground diversity on EMF. Both plant species diversity and functional diversity had similar explanatory power for the variation in EMF, implying that niche differentiation and multifunctional complementarity among plant species and traits are essential in regulating the EMF. Furthermore, the effects of abiotic factors on EMF were stronger than those of biotic factors via direct and indirect pathways affecting above- and below-ground biodiversity. As a dominant regulator, the soil sand content was negatively correlated with EMF. These findings indicate the vital role of abiotic mechanisms in affecting EMF, and deepen our understanding of the single and combined effects of biotic and abiotic factors on EMF. We conclude that soil texture and plant diversity, representing crucial abiotic and biotic factors, respectively, are important determinants of the EMF of grasslands.
英文关键词	Ecosystem multifunctionality Soil texture Plant species diversity Functional diversity Community -weighted mean of traits Soil microbial diversity Grasslands
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001024744200001
WOS关键词	SOIL MICROBIAL COMMUNITIES ; BELOW-GROUND BIODIVERSITY ; FUNCTIONAL DIVERSITY ; PLANT DIVERSITY ; TRAITS ; DESERTIFICATION ; PRODUCTIVITY ; DISTURBANCE ; MECHANISMS ; CHALLENGES
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/2XILL650/398534
推荐引用方式 GB/T 7714	Wang, Congwen,Yu, Wanying,Ma, Linna,et al. Biotic and abiotic drivers of ecosystem multifunctionality: Evidence from the semi-arid grasslands of northern China[J],2023,887.
APA	Wang, Congwen.,Yu, Wanying.,Ma, Linna.,Ye, Xuehua.,Erdenebileg, Enkhmaa.,...&Liu, Guofang.(2023).Biotic and abiotic drivers of ecosystem multifunctionality: Evidence from the semi-arid grasslands of northern China.SCIENCE OF THE TOTAL ENVIRONMENT,887.
MLA	Wang, Congwen,et al."Biotic and abiotic drivers of ecosystem multifunctionality: Evidence from the semi-arid grasslands of northern China".SCIENCE OF THE TOTAL ENVIRONMENT 887(2023).