干旱区生态环境知识资源中心(Arid): Global patterns of rhizosphere effects on soil carbon and nitrogen biogeochemical processes

Arid

DOI	10.1016/j.catena.2022.106661
	Global patterns of rhizosphere effects on soil carbon and nitrogen biogeochemical processes
	Ma, Yuandan; Yue, Kai; Hedenec, Petr; Li, Cuihuan; Li, Yan; Wu, Qiqian
通讯作者	Li, Y ; Wu, QQ
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2023
卷号	220
英文摘要	The rhizosphere controls soil carbon (C) and nitrogen (N) cycling via rhizodeposition. However, rhizosphere effects on soil C mineralization (Cmin) and net N mineralization (Nmin) rates have rarely been quantified at the global scale. We performed a meta-analysis of 1875 pairwise observations from 155 articles to assess rhizosphere effects on soil Cmin and net Nmin at the global scale. The results showed that rhizosphere effects significantly enhanced soil Cmin and net Nmin by 25.43 and 26.77%, respectively, and these rhizosphere effects were higher in humid regions than in arid regions and higher under woody plants than under herbaceous plants. The rhizo-sphere effects on soil Cmin and net Nmin were significantly correlated with latitude, mean annual precipitation, soil organic carbon (only for net Nmin), available N and microbial biomass carbon. We conclude that geographical characteristics and bulk soil properties were most important in determining rhizosphere effects on soil biogeo-chemical processes, although plant life forms also showed significant effects. These results support the microbial activation hypothesis and N mining hypothesis, demonstrate the coupled nature of soil C and N cycling in the rhizosphere, and indicate the importance of rhizosphere effects for turning over soil organic matter and increasing nutrient concentrations. Overall, the results from this meta-analysis provide novel insights into rhizosphere effects on soil Cmin and net Nmin among precipitation regions and plant life forms, which can contribute to the prediction of how rhizosphere regulate soil C and N biogeochemical cycling in terrestrial ecosystems at large scales.
英文关键词	Arid and humid regions Carbon mineralization Net nitrogen mineralization Plant life form Rhizosphere effect
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000863672700002
WOS关键词	ORGANIC-MATTER ; ROOT EXUDATION ; TERRESTRIAL CARBON ; N AVAILABILITY ; DECOMPOSITION ; PLANT ; MINERALIZATION ; MOISTURE ; TURNOVER ; ACQUISITION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395648
推荐引用方式 GB/T 7714	Ma, Yuandan,Yue, Kai,Hedenec, Petr,et al. Global patterns of rhizosphere effects on soil carbon and nitrogen biogeochemical processes[J],2023,220.
APA	Ma, Yuandan,Yue, Kai,Hedenec, Petr,Li, Cuihuan,Li, Yan,&Wu, Qiqian.(2023).Global patterns of rhizosphere effects on soil carbon and nitrogen biogeochemical processes.CATENA,220.
MLA	Ma, Yuandan,et al."Global patterns of rhizosphere effects on soil carbon and nitrogen biogeochemical processes".CATENA 220(2023).