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Increasing temperature can modify the effect of straw mulching on soil C fractions, soil respiration, and microbial community composition

文献类型：期刊论文

作者Fu, Xin2,3; Wang, Jun1,2; Xie, Mengyi1,2; Zhao, Fazhu1,2; Doughty, Russell4
刊名PLOS ONE
出版日期2020-08-11
卷号15期号:8页码:19
ISSN号1932-6203
DOI10.1371/journal.pone.0237245
通讯作者Wang, Jun(wangj@nwu.edu.cn)
英文摘要Straw mulching has been widely adopted in dryland cropping but its effect on soil respiration and microbial communities under warming are not well understood. Soil samples were collected from a corn field with straw mulching (SM) for nine years and without straw mulching (CK), and incubated at 15 degrees C, 25 degrees C, and 35 degrees C for 60 days. Soil respiration, C fractions and bacterial and fungal community structure were measured SM had greater soil organic carbon and potential C mineralization and a similar microbial biomass carbon throughout the incubation when compared with CK. Soil respiration increased with increasing temperature and its temperature sensitivity (Q(10)) was lower with SM than CK. Similar microbial community composition was found in the soils with SM and CK before incubation. However, SM had a greater bacterial richness and the relative abundances ofProteobacteria,Acidobacteria,Nitrospirae,Planctomycetes,Bacteroidetes, andBasidiomycota, but lower relative abundances ofActinobacteria,Chloroflexi,and Ascomycotathan CK after incubation. Bacterial richness and diversity were greater at 15 degrees C and 25 degrees C than 35 degrees C, but there was no difference in fungal richness and diversity among the incubation temperatures. As temperature increased, the relative abundances ofChloroflexi,Acidobacteria, andBacteroidetesdecreased, butGemmatimonadetesandAscomycotaincreased, and were significantly correlated with soil C fractions and respiration. These findings indicated that the effect of straw mulching on soil C cycling and microbial community structure can be highly modified by increasing temperature.
WOS关键词ORGANIC-CARBON FRACTIONS ; BACTERIAL COMMUNITY ; NITROGEN ADDITION ; SENSITIVITY ; INCUBATION ; RESPONSES ; BIOMASS ; DECOMPOSITION ; QUALITY ; FOREST
资助项目Chinese Academy of Sciences 505 Light of West China Program for Introduced Talent in the West ; National Natural Science Foundation of China[507 31570440] ; National Natural Science Foundation of China[31270484] ; Key International Scientific and Technological Cooperation and Exchange Project of Shaanxi Province, China[2020KWZ-010]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000562664700023
出版者PUBLIC LIBRARY SCIENCE
资助机构Chinese Academy of Sciences 505 Light of West China Program for Introduced Talent in the West ; National Natural Science Foundation of China ; Key International Scientific and Technological Cooperation and Exchange Project of Shaanxi Province, China
源URL[http://ir.igsnrr.ac.cn/handle/311030/158018]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Jun
作者单位1.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
3.Hebei Agr Univ, Coll Land & Resources, Baoding, Peoples R China
4.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
推荐引用方式
GB/T 7714		 Fu, Xin,Wang, Jun,Xie, Mengyi,et al. Increasing temperature can modify the effect of straw mulching on soil C fractions, soil respiration, and microbial community composition[J]. PLOS ONE,2020,15(8):19.
APA Fu, Xin,Wang, Jun,Xie, Mengyi,Zhao, Fazhu,&Doughty, Russell.(2020).Increasing temperature can modify the effect of straw mulching on soil C fractions, soil respiration, and microbial community composition.PLOS ONE,15(8),19.
MLA Fu, Xin,et al."Increasing temperature can modify the effect of straw mulching on soil C fractions, soil respiration, and microbial community composition".PLOS ONE 15.8(2020):19.

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来源：地理科学与资源研究所

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