Multivariate control of root biomass in a semi-arid grassland on the Loess Plateau, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Multivariate control of root biomass in a semi-arid grassland on the Loess Plateau, China
	Zhu, Huoxing ; Fu, Bojie ; Lv, Nan ; Wang, Shuai ; Hou, Jian
刊名	PLANT AND SOIL
	2014
卷号	379 期号:1 页码:315-324
关键词	Plant diversity Root biomass Structural equation modeling Soil carbon sequestration Soil total nitrogen retention
ISSN号	0032-079X
中文摘要	Root biomass has long been under-represented in biodiversity-ecosystem functioning studies, despite its dominance in biomass in many arid and semi-arid ecosystems. We aimed to explore the multivariate control over root biomass by plant diversity, together with other biotic and abiotic factors and to evaluate the relative importance of these factors. Above- and below-ground traits of 13 communities and soil properties were measured in semi-arid grasslands on the Loess Plateau, China. Structural equation modeling (SEM) was used to evaluate the relative importance of the community and soil characteristics, emphasizing the direct and indirect effects of plant diversity on root biomass. Significant indirect effects of plant species richness on root biomass were found, although no direct correlation was detected between them. In the indirect pathways, plant species richness showed a positive effect on soil total nitrogen, but a significant negative influence on soil total carbon. Soil total nitrogen and plant diversity had the largest and smallest total effect respectively on root biomass in the model. Plant species richness was not the strongest determinant of root biomass but had a significant indirect effect, mediated through soil total carbon and nitrogen. This study suggests that greater plant species richness, through a positive influence on soil total nitrogen, may indirectly promote root carbon stock.
WOS记录号	WOS:000335166300023
公开日期	2015-03-23
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/9190]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Zhu, Huoxing,Fu, Bojie,Lv, Nan,et al. Multivariate control of root biomass in a semi-arid grassland on the Loess Plateau, China[J]. PLANT AND SOIL,2014,379(1):315-324.
APA	Zhu, Huoxing,Fu, Bojie,Lv, Nan,Wang, Shuai,&Hou, Jian.(2014).Multivariate control of root biomass in a semi-arid grassland on the Loess Plateau, China.PLANT AND SOIL,379(1),315-324.
MLA	Zhu, Huoxing,et al."Multivariate control of root biomass in a semi-arid grassland on the Loess Plateau, China".PLANT AND SOIL 379.1(2014):315-324.