干旱区生态环境知识资源中心(Arid): Distribution of physiochemically defined soil organic carbon pools and their relationship to the soil microbial community in grasslands

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DOI	10.1016/j.pedobi.2020.150704
	Distribution of physiochemically defined soil organic carbon pools and their relationship to the soil microbial community in grasslands
	Zhu, Tianqi; Herath, Saman; Newton, Paul; Hou, Fujiang; Bowatte, Saman
通讯作者	Bowatte, S (corresponding author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Key Lab Grassland Livestock Ind Innovat, State Key Lab Grassland Agroecosyst,Minist Agr, Lanzhou 730020, Peoples R China.
来源期刊	PEDOBIOLOGIA
ISSN	0031-4056
EISSN	1873-1511
出版年	2021
卷号	84
英文摘要	Sequestration of carbon (C) in soils provides an important tool for climate change mitigation and grasslands offer significant potential for this approach. In this study, we examined soil organic C (SOC) protection mechanisms in alpine meadow, typical steppe and desert grassland ecosystems located in the Gansu province of China. We also examined which microbial taxonomic groups are associated with physically protected C and unprotected C. Soil samples for the study were collected from 0 similar to 10 and 10 similar to 20 cm soil depths from a desert in Ping Shan Hu county, typical steppe in Huanxian county and alpine meadow in Maqu county. The soil samples were subjected to the soil physiochemical fractionation to identify physically, chemically and biochemically protected and unprotected C. The soil bacterial and fungal communities were examined by DNA metabarcoding using Illumina sequencing, and redundancy analysis was used to identify microbial taxa with close associations with physically protected C and unprotected C. The alpine meadow consisted of the largest SOC stock, mostly physically protected (87.14 %), while also consisting of a large amount of unprotected C. Typical steppe and desert SOC stocks were smaller but the C was in chemically protected stable forms (86.25 % and 60.22 % respectively). The redundancy analysis identified bacterial phyla Proteobacteria, Acidobacteria and Verrucomicrobia and the fungal phyla Zygomycota and Chytridiomycota as microbial groups that were significantly related to physical C protection and unprotected C.
英文关键词	Soil organic carbon pools Carbon stabilization Soil organic carbon protection mechanisms Soil microbial community Grasslands
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000621352900001
WOS关键词	MATTER ; SATURATION ; DIVERSITY ; KNOWLEDGE ; DATABASE ; STORAGE ; SEARCH
WOS类目	Ecology ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351289
作者单位	[Zhu, Tianqi; Hou, Fujiang; Bowatte, Saman] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Key Lab Grassland Livestock Ind Innovat, State Key Lab Grassland Agroecosyst,Minist Agr, Lanzhou 730020, Peoples R China; [Herath, Saman] Uva Wellassa Univ, Fac Anim Sci & Export Agr, Dept Export Agr, Badulla 90000, Sri Lanka; [Newton, Paul] AgResearch Ltd, Grasslands Res Ctr, Tennent Dr,Private Bag 11008, Palmerston North 4442, New Zealand
推荐引用方式 GB/T 7714	Zhu, Tianqi,Herath, Saman,Newton, Paul,et al. Distribution of physiochemically defined soil organic carbon pools and their relationship to the soil microbial community in grasslands[J]. 兰州大学,2021,84.
APA	Zhu, Tianqi,Herath, Saman,Newton, Paul,Hou, Fujiang,&Bowatte, Saman.(2021).Distribution of physiochemically defined soil organic carbon pools and their relationship to the soil microbial community in grasslands.PEDOBIOLOGIA,84.
MLA	Zhu, Tianqi,et al."Distribution of physiochemically defined soil organic carbon pools and their relationship to the soil microbial community in grasslands".PEDOBIOLOGIA 84(2021).