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Changes in microbial communities and respiration following the revegetation of eroded soil
Xiao, Haibing1,2; Li, Zhongwu1,2; Dong, Yuting1,2; Chang, Xiaofeng1,2; Deng, Lei1,2; Huang, Jinquan4; Nie, Xiaodong3; Liu, Chun3; Liu, Lin1,2; Wang, Danyang3; Liu, Qiming5; Zhang, Yanru3; Li, ZW (reprint author), Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Li, ZW (reprint author), MWR, Yangling 712100, Peoples R China.
SubtypeArticle
2017
Source PublicationAGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
description.correspondentemaillizw@hnu.edu.cn
Volume246Pages:30-37
AbstractIt is necessary to assess the responses of microbial communities and respiration to the revegetation of eroded soils for understanding the dynamics of soil carbon (C) pools and fluxes. In this study, three typical abandoned croplands (CL1, CL2 and CL3) and three secondary grasslands planted with Coronilla varia (GL1, GL2 and GL3) on the Loess Plateau of China were selected for sampling, and quantitative polymerase chain reaction (qPCR) and high-throughput sequencing were applied to intuitively discern differences in the soil bacteria and fungi. Our results showed that bacterial abundance in the abandoned croplands was 57 times higher than that of the secondary grasslands (P < 0.05), but no obvious changes (P > 0.05) in fungal abundance and microbial diversity were observed after 31 years of revegetation. We observed positive responses in Actinobacteria, Firmicutes, Zygomycota and Ciliophora and negative responses in Bacteroidetes and Planctomycetes to revegetation. In addition, the maximum soil microbial respiration was observed in the GL3 site (20.86 +/- 0.69 mg CO2-C kg(-1) soil d(-1)) followed by the GL1 site (19.97 +/- 0.65 mg CO2-C kg(-1) soil d(-1)), so revegetation significantly improved (P < 0.05) soil microbial respiration. Multiple stepwise regression analysis showed that dissolved organic carbon (DOC) explained up to 68.5% of the variation in soil microbial respiration, which indicated that the effects of changes in microbial properties in response to revegetation on soil microbial respiration were likely to be smaller than the potential effects of changes in the quality of organic matter. Labile organic matter is the primary rate-limiting factor for soil microbial respiration.
KeywordRevegetation Microbial Community Labile Organic Matter Soil Microbial Respiration
Subject AreaAgriculture ; Environmental Sciences & Ecology
DOI10.1016/j.agee.2017.05.026
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Indexed BySCI
Publication PlaceAMSTERDAM
Language英语
WOS IDWOS:000405973000004
PublisherELSEVIER SCIENCE BV
Funding Organization'Hundred-talent Project' of the Chinese Academy of Sciences; Open Fund from the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021402-1501]; National Natural Science Foundation of China [41271294] ; 'Hundred-talent Project' of the Chinese Academy of Sciences; Open Fund from the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021402-1501]; National Natural Science Foundation of China [41271294]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7952
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorLi, ZW (reprint author), Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Li, ZW (reprint author), MWR, Yangling 712100, Peoples R China.
Affiliation1.Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.MWR, Yangling 712100, Peoples R China
3.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
4.Yangtze River Sci Res Inst, Dept Soil & Water Conservat, Wuhan 430010, Hubei, Peoples R China
5.Yellow River Conservancy Commiss, Tianshui Soil & Water Conservat Expt Stn, Tianshui 741000, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Haibing,Li, Zhongwu,Dong, Yuting,et al. Changes in microbial communities and respiration following the revegetation of eroded soil[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2017,246:30-37.
APA Xiao, Haibing.,Li, Zhongwu.,Dong, Yuting.,Chang, Xiaofeng.,Deng, Lei.,...&Li, ZW .(2017).Changes in microbial communities and respiration following the revegetation of eroded soil.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,246,30-37.
MLA Xiao, Haibing,et al."Changes in microbial communities and respiration following the revegetation of eroded soil".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 246(2017):30-37.
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