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DOI	10.3389/fpls.2021.698054
	Effect of Root and Mycelia on Fine Root Decomposition and Release of Carbon and Nitrogen Under Artemisia halodendron in a Semi-arid Sandy Grassland in China
	Liu, Xinping; Luo, Yongqing; Cheng, Li; Hu, Hongjiao; Wang, Youhan; Du, Zhong
通讯作者	Luo, YQ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China. ; Du, Z (通讯作者)，China West Normal Univ, Sch Geog Sci, Nanchong, Peoples R China. ; Du, Z (通讯作者)，Swiss Fed Inst Forest Snow & Landscape Res WSL, Forest Dynam, Birmensdorf, Switzerland.
发表日期	2021
ISSN	1664-462X
卷号	12
英文摘要	Plant fine root turnover is a continuous process both spatially and temporally, and fine root decomposition is affected by many biotic and abiotic factors. However, the effect of the living roots and the associated mycorrhizal fungal mycelia on fine root decomposition remains unclear. The objective of this study is to explore the influence of these biotic factors on fine root decomposition in a semi-arid ecosystem. In this study, we investigated the effect of fine roots and mycelia on fine root decomposition of a pioneer shrub (Artemisia halodendron) in Horqin sandy land, northeast China, by the ingrowth core method combined with the litterbag method. Litterbags were installed in cores. Results showed that core a allowed the growth of both fine roots and mycelia (treatment R + M), core b only allowed the growth of mycelia (treatment M), and in core c the fine root and mycelia growth were restricted and only bulk soil was present (treatment S). These findings suggest that the process of root decomposition was significantly affected by the living roots and mycelia, and carbon (C) and nitrogen (N) concentration dynamics during root decomposition differed among treatments. Mycelia significantly stimulated the mass loss and C and N release during root decomposition. Treatment R + M significantly stimulated the accumulation of soil total C, total N, and organic N under litterbags. The mycelia significantly stimulated the accumulation of the inorganic N (ammonium-N and nitrate-N) but the presence of fine roots weakened nitrate-N accumulation. The presence of living roots and associated mycelia strongly affected the process of root decomposition and matter release in the litter-soil system. The results of this study should strengthen the understanding of root-soil interactions.
关键词	SOIL ORGANIC-MATTER COMMUNITY STRUCTURE ENZYME-ACTIVITIES FOREST ECTOMYCORRHIZAL DYNAMICS LITTER FUNGI PATTERNS EXUDATE
英文关键词	artemisia halodendron; mycelia; fine root; root decomposition; ingrowth core method
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000696526700001
来源期刊	FRONTIERS IN PLANT SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253876
作者单位	[Liu, Xinping; Luo, Yongqing; Cheng, Li; Hu, Hongjiao] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China; [Wang, Youhan; Du, Zhong] China West Normal Univ, Sch Geog Sci, Nanchong, Peoples R China; [Du, Zhong] Swiss Fed Inst Forest Snow & Landscape Res WSL, Forest Dynam, Birmensdorf, Switzerland
推荐引用方式 GB/T 7714	Liu, Xinping,Luo, Yongqing,Cheng, Li,et al. Effect of Root and Mycelia on Fine Root Decomposition and Release of Carbon and Nitrogen Under Artemisia halodendron in a Semi-arid Sandy Grassland in China[J]. 中国科学院西北生态环境资源研究院,2021,12.
APA	Liu, Xinping,Luo, Yongqing,Cheng, Li,Hu, Hongjiao,Wang, Youhan,&Du, Zhong.(2021).Effect of Root and Mycelia on Fine Root Decomposition and Release of Carbon and Nitrogen Under Artemisia halodendron in a Semi-arid Sandy Grassland in China.FRONTIERS IN PLANT SCIENCE,12.
MLA	Liu, Xinping,et al."Effect of Root and Mycelia on Fine Root Decomposition and Release of Carbon and Nitrogen Under Artemisia halodendron in a Semi-arid Sandy Grassland in China".FRONTIERS IN PLANT SCIENCE 12(2021).