Global patterns in mycorrhizal mediation of soil carbon storage, stability, and nitrogen demand: A meta-analysis

doi:10.1016/j.soilbio.2022.108578

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	Global patterns in mycorrhizal mediation of soil carbon storage, stability, and nitrogen demand: A meta-analysis
	Wu, Yuntao 1; Deng, Meifeng ; Huang, Junsheng ; Yang, Sen 1; Guo, Lulu 1; Yang, Lu 1; Ahirwal, Jitendra ; Peng, Ziyang 1; Liu, Weixing ; Liu, Lingli 1
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2022
卷号	166
关键词	Arbuscular mycorrhiza Ectomycorrhiza Mineral-associated organic matter Particulate organic matter Soil carbon storage Soil C N ratio
ISSN号	0038-0717
DOI	10.1016/j.soilbio.2022.108578
文献子类	Article
英文摘要	Understanding what controls the soil organic matter (SOM) storage and its stability is important to predict how SOM will respond to environmental changes. The role of mycorrhizal fungi in mediating soil carbon (C) and nitrogen (N) cycling is increasingly recognized. However, how mycorrhizal fungi could affect C distribution and N demand of different soil fractions is largely unknown. Here, we compiled a global dataset of C and N concentrations in different SOM fractions from arbuscular mycorrhizal (AM) and ectomycorrhizal (EcM) dominated ecosystems, covering major biomes, including tropical forest, temperate forest, boreal forest, and grassland. Based on this dataset, we evaluated the effect of mycorrhiza symbiosis on C storage and C: N stoichiometry of SOM fractions with different stability. We found that for both topsoil and subsoil, bulk soil C storage and C: N ratio in EcM ecosystems were higher than those in AM ecosystems, and a similar pattern was also observed in the particulate organic matter fraction (POM). However, the C storage in the mineral-associated organic matter fraction (MAOM) was not different between AM and EcM ecosystems. Moreover, with the increase in bulk soil C concentration, the C storage in topsoil MAOM reached a stable level in EcM ecosystems but continued to increase in AM ecosystems. With the increase in soil N concentration, bulk soil C storage of EcM ecosystems increased more rapidly than that of AM ecosystems, which was mainly driven by the increase in POM C storage. Our study highlights that soil C storage and relative stability are different between AM and EcM ecosystems. Although EcM ecosystems have a higher soil C storage and lower N demand per unit soil C, most C is distributed in relative labile POM. Therefore, SOM in EcM ecosystems could be more susceptible to disturbances caused by land use and climate changes.
学科主题	Soil Science
电子版国际标准刊号	1879-3428
出版地	OXFORD
WOS关键词	ORGANIC-MATTER ; ARBUSCULAR MYCORRHIZAL ; FUNGI ; DECOMPOSITION ; LITTER ; STABILIZATION ; STOICHIOMETRY ; ASSOCIATIONS ; FRAMEWORK ; ECOLOGY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000784294100005
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/29029]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yuntao,Deng, Meifeng,Huang, Junsheng,et al. Global patterns in mycorrhizal mediation of soil carbon storage, stability, and nitrogen demand: A meta-analysis[J]. SOIL BIOLOGY & BIOCHEMISTRY,2022,166.
APA	Wu, Yuntao.,Deng, Meifeng.,Huang, Junsheng.,Yang, Sen.,Guo, Lulu.,...&Liu, Lingli.(2022).Global patterns in mycorrhizal mediation of soil carbon storage, stability, and nitrogen demand: A meta-analysis.SOIL BIOLOGY & BIOCHEMISTRY,166.
MLA	Wu, Yuntao,et al."Global patterns in mycorrhizal mediation of soil carbon storage, stability, and nitrogen demand: A meta-analysis".SOIL BIOLOGY & BIOCHEMISTRY 166(2022).