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C:N:P stoichiometry regulates soil organic carbon mineralization and concomitant shifts in microbial community composition in paddy soil

文献类型：期刊论文

作者Wei, Xiaomeng4,6,7; Zhu, Zhenke4,6; Liu, Yi4; Luo, Yu8; Deng, Yangwu1; Xu, Xingliang9; Liu, Shoulong4; Richter, Andreas2; Shibistova, Olga3,5; Guggenberger, Georg3,4
刊名BIOLOGY AND FERTILITY OF SOILS
出版日期2020-05-14
页码15
关键词Soil organic C mineralization Microbial community composition Co-occurrence Keystone species Element stoichiometry
ISSN号0178-2762
DOI10.1007/s00374-020-01468-7
通讯作者Zhu, Zhenke(zhuzhenke@isa.ac.cn) ; Wu, Jinshui(jswu@isa.ac.cn)
英文摘要Stoichiometric control of input substrate (glucose) and native soil organic C (SOC) mineralization was assessed by performing a manipulation experiment based on N or P fertilization in paddy soil. Glucose mineralization increased with nutrient addition up to 11.6% with combined N and P application compared with that without nutrient addition. During 100 days of incubation, approximately 4.5% of SOC was mineralized and was stimulated by glucose addition. Glucose and SOC mineralization increased exponentially with dissolved organic C (DOC):NH4+-N, DOC:Olsen P, and microbial biomass (MB)C:MBN ratios. The relative abundances of Clostridia and beta-Proteobacteria (r-strategists) were increased with combined C and NP application at the beginning of the experiment, while the relative abundances of Acidobacteria (K-strategists) were enhanced with the exhaustion of available resource at the end of incubation. The bacteria abundance and diversity were negatively related to the DOC:NH4+-N and DOC:Olsen P, which had direct positive effects (+ 0.63) on SOC mineralization. Combined glucose and NP application decreased the network density of the bacterial community. Moreover, P addition significantly decreased the negative associations among bacterial taxa, which suggested that microbial competition for nutrients was alleviated. The relative abundances of keystone species showed significant positive correlations with SOC mineralization in the soils without P application, revealing that microbes increased their activity for mining of limited nutrients from soil organic matter. Hence, bacteria shifted their community composition and their interactions to acquire necessary elements by increasing SOC mineralization to maintain the microbial biomass C:N:P stoichiometric balance in response to changes in resource stoichiometry.
WOS关键词USE EFFICIENCY ; ECOLOGICAL STOICHIOMETRY ; STRAW MINERALIZATION ; ASSIMILATED CARBON ; ENZYME-ACTIVITIES ; N FERTILIZATION ; ROOT RESIDUES ; PLANT-GROWTH ; RICE SHOOT ; GEN. NOV.
资助项目National Natural Science Foundation of China[41430860] ; National Natural Science Foundation of China[41877104] ; National Natural Science Foundation of China[41761134095] ; Innovative Research Groups of the Natural Science Foundation of Hunan Province[2019JJ10003] ; Natural Science Foundation of Hunan Province[2019JJ30028] ; Youth Innovation Team Project of the Institute of Subtropical Agriculture, Chinese Academy of Sciences[2017QNCXTD_GTD] ; Youth Innovation Promotion Association[2019357] ; China Scholarship Council[201904910049] ; Chinese Academy of Sciences President's International Fellowship Initiative[2018VCA0031]
WOS研究方向Agriculture
语种英语
WOS记录号WOS:000532909100001
出版者SPRINGER
资助机构National Natural Science Foundation of China ; Innovative Research Groups of the Natural Science Foundation of Hunan Province ; Natural Science Foundation of Hunan Province ; Youth Innovation Team Project of the Institute of Subtropical Agriculture, Chinese Academy of Sciences ; Youth Innovation Promotion Association ; China Scholarship Council ; Chinese Academy of Sciences President's International Fellowship Initiative
源URL[http://ir.igsnrr.ac.cn/handle/311030/159662]  
专题中国科学院地理科学与资源研究所
通讯作者Zhu, Zhenke; Wu, Jinshui
作者单位1.Jiangxi Univ Sci & Technol, Sch Resources & Environm Engn, Ganzhou 341000, Peoples R China
2.Univ Vienna, Ctr Microbiol & Ecosyst Sci, A-1090 Vienna, Austria
3.Leibniz Univ Hannover, Inst Soil Sci, D-30419 Hannover, Germany
4.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changde 410125, Hunan, Peoples R China
5.SB RAS, VN Sukachev Inst Forest, Krasnoyarsk, Russia
6.Chinese Acad Sci, Inst Subtrop Agr, Changsha Res Stn Agr & Environm Monitoring, Changde 410125, Hunan, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
8.Zhejiang Univ, Inst Soil & Water Resources & Environm Sci, Zhejiang Prov Key Lab Agr Resources & Environm, Hangzhou 310058, Peoples R China
9.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Wei, Xiaomeng,Zhu, Zhenke,Liu, Yi,et al. C:N:P stoichiometry regulates soil organic carbon mineralization and concomitant shifts in microbial community composition in paddy soil[J]. BIOLOGY AND FERTILITY OF SOILS,2020:15.
APA Wei, Xiaomeng.,Zhu, Zhenke.,Liu, Yi.,Luo, Yu.,Deng, Yangwu.,...&Ge, Tida.(2020).C:N:P stoichiometry regulates soil organic carbon mineralization and concomitant shifts in microbial community composition in paddy soil.BIOLOGY AND FERTILITY OF SOILS,15.
MLA Wei, Xiaomeng,et al."C:N:P stoichiometry regulates soil organic carbon mineralization and concomitant shifts in microbial community composition in paddy soil".BIOLOGY AND FERTILITY OF SOILS (2020):15.

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来源：地理科学与资源研究所

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