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Elevated CO2 and nitrogen addition have minimal influence on the rhizospheric effects of Bothriochloa ischaemum
Xiao, Lie1,2; Liu, Guobin2; Li, Peng1; Xue, Sha2; Xue, S (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
SubtypeArticle
2017
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
description.correspondentemailxuesha100@163.com
Volume7
AbstractThe influence of elevated CO2 and nitrogen (N) addition on soil microbial communities and the rhizospheric effects of Bothriochloa ischaemum were investigated. A pot-cultivation experiment was conducted in climate-controlled chambers under two levels of CO2 (400 and 800 mu mol mol(-1)) and three levels of N addition (0, 2.5, and 5 g N m(-2) y(-1)). Soil samples (rhizospheric and bulk soil) were collected for the assessment of soil organic carbon (SOC), total N (TN), total phosphorus (TP), basal respiration (BR), and phospholipid fatty acids (PLFAs) 106 days after treatments were conducted. Elevated CO2 significantly increased total and fungal PLFAs in the rhizosphere when combined with N addition, and N addition significantly increased BR in the rhizosphere and total, bacterial, fungal, Gram-positive (G(+)), and Gram-negative (G-) PLFAs in both rhizospheric and bulk soil. BR and total, bacterial, G(+), and G(+)/G-PLFAs were significantly higher in rhizospheric than bulk soil, but neither elevated CO2 nor N addition affected the positive rhizospheric effects on bacterial, G(+), or G(+)/G-PLFAs. N addition had a greater effect on soil microbial communities than elevated CO2, and elevated CO2 and N addition had minor contributions to the changes in the magnitude of the rhizospheric effects in B. ischaemum.
Subject AreaScience & Technology - Other Topics
DOI10.1038/s41598-017-06994-3
URL查看原文
Indexed BySCI
Publication PlaceLONDON
Language英语
WOS IDWOS:000406364600040
PublisherNATURE PUBLISHING GROUP
Funding OrganizationWestern Young Scholars of the Chinese Academy of Sciences [XAB2015A05]; National Natural Science Foundation of China [41371510, 41371508, 41471438] ; Western Young Scholars of the Chinese Academy of Sciences [XAB2015A05]; National Natural Science Foundation of China [41371510, 41371508, 41471438]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7957
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorXue, S (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
Affiliation1.Xian Univ Technol, State Key Lab Base Ecohydraul Engn Arid Area, Xian 710048, Shaanxi, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Lie,Liu, Guobin,Li, Peng,et al. Elevated CO2 and nitrogen addition have minimal influence on the rhizospheric effects of Bothriochloa ischaemum[J]. SCIENTIFIC REPORTS,2017,7.
APA Xiao, Lie,Liu, Guobin,Li, Peng,Xue, Sha,&Xue, S .(2017).Elevated CO2 and nitrogen addition have minimal influence on the rhizospheric effects of Bothriochloa ischaemum.SCIENTIFIC REPORTS,7.
MLA Xiao, Lie,et al."Elevated CO2 and nitrogen addition have minimal influence on the rhizospheric effects of Bothriochloa ischaemum".SCIENTIFIC REPORTS 7(2017).
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