干旱区生态环境知识资源中心(Arid): Groundwater and root trait diversity jointly drive plant fine root biomass across arid inland river basin

Arid

DOI	10.1007/s11104-021-05182-7
	Groundwater and root trait diversity jointly drive plant fine root biomass across arid inland river basin
	Wang, Yin; Wang, Jian-Ming; Yang, Huan; Li, Guan-Jun; Chen, Chen; Li, Jing-Wen
通讯作者	Li, JW (corresponding author), Beijing Forestry Univ, Sch Ecol & Nat Conservat, 35 Qinghua East Rd, Beijing 100083, Peoples R China. ; Li, JW (corresponding author), Beijing Forestry Univ, Ejina Inst Populus Euphrat, Alxa 750300, Inner Mongolia, Peoples R China.
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2021
英文摘要	Background and aims As one of the key determinants of water availability in arid regions, groundwater plays an essential role in regulating biodiversity, key ecosystem processes and functioning. Meanwhile, biodiversity is known to modulate ecosystem functions. Numerous studies have focused on the links between aboveground productivity and plant diversity, while the potential influence of root traits on fine root biomass (FRB) has barely been elucidated. Therefore, it remains unclear how groundwater, soil, species diversity, above- and belowground traits jointly regulate FRB. Methods 230 plots were sampled under a broad range of groundwater and soil conditions across a typical arid inland river basin, within which FRB, associated soil properties, species diversity and functional traits were measured. Results FRB was mainly regulated by the interactions between groundwater and root trait diversity, followed by groundwater, root trait diversity and soil moisture. Although mean and seasonality of groundwater depth had substantial effects on FRB, groundwater affected FRB mainly through indirect pathways mediated by root trait diversity. Furthermore, root trait diversity showed the largest direct effect on FRB, suggesting that it was the main driver of FRB. Species richness and aboveground traits had no significant direct effect on FRB, implying that root traits surpassed species richness and aboveground traits in regulating FRB. Conclusion Our findings provide robust empirical evidence that groundwater and root trait diversity jointly drive existing belowground carbon storage in arid inland river basin. We emphasize the importance of groundwater and root trait diversity, as well as their interactions in forecasting underground ecological processes and functions under global changes.
英文关键词	Fine root biomass Groundwater depth Root trait diversity Interactive effect Arid inland river basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000706577200002
WOS关键词	FUNCTIONAL DIVERSITY ; ECONOMICS SPECTRUM ; ABOVEGROUND BIOMASS ; ECOSYSTEM FUNCTION ; SPECIES-DIVERSITY ; CLIMATE ; PATTERNS ; VEGETATION ; FORESTS ; PLATEAU
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364332
作者单位	[Wang, Yin; Wang, Jian-Ming; Yang, Huan; Li, Guan-Jun; Li, Jing-Wen] Beijing Forestry Univ, Sch Ecol & Nat Conservat, 35 Qinghua East Rd, Beijing 100083, Peoples R China; [Wang, Yin; Wang, Jian-Ming; Yang, Huan; Li, Guan-Jun; Li, Jing-Wen] Beijing Forestry Univ, Ejina Inst Populus Euphrat, Alxa 750300, Inner Mongolia, Peoples R China; [Chen, Chen] Beijing Forestry Univ, Coll Forestry, 35 Qinghua East Rd, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yin,Wang, Jian-Ming,Yang, Huan,et al. Groundwater and root trait diversity jointly drive plant fine root biomass across arid inland river basin[J]. 北京林业大学,2021.
APA	Wang, Yin,Wang, Jian-Ming,Yang, Huan,Li, Guan-Jun,Chen, Chen,&Li, Jing-Wen.(2021).Groundwater and root trait diversity jointly drive plant fine root biomass across arid inland river basin.PLANT AND SOIL.
MLA	Wang, Yin,et al."Groundwater and root trait diversity jointly drive plant fine root biomass across arid inland river basin".PLANT AND SOIL (2021).