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Environmental variables better explain changes in potential nitrification and denitrification activities than microbial properties in fertilized forest soils
Tang, Yugian1,2,3; Yu, Guirui1,3; Zhang, Xinyu1,3; Wang, Qiufeng1,3; Tian, Dashuan1; Tian, Jing1,3; Niu, Shuli1,3; Ge, Jianping1,2
2019-01-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume647Pages:653-662
Corresponding AuthorYu, Guirui(yugr@igsnrr.ac.cn) ; Zhang, Xinyu(zhangxy@igsnrr.ac.cn)
AbstractBecause of increases in atmospheric nitrogen (N) deposition worldwide, nutrient imbalances and phosphorus (P) limitations in soil are aggravated, with the result that P fertilizer applications to terrestrial ecosystems world-wide may increase. Nitrification and denitrification in soil are major sources of nitrous oxide emissions, especially in soils treated with fertilizers. However, few researchers have studied how forest soils respond to nutrient additions, so we are not sure how the potential nitrification and denitrification activities (PNA and PDA, respectively) and microbial communities involved in these processes might respond when N and P are added to temperate and subtropical forest soils. We investigated how the PNA, PDA, the abundances and community compositions of nitrifiers and denitrifiers, and environmental properties, including soil pH, soil total and dissolved organic carbon, total and available N and phosphorus P, changed when N and/or P were added to subtropical and temperate forest soils. We quantified the abundance, and analyzed the composition, of functional marker genes of nitrifiers (ammonia-oxidizing bacteria and archaea amoA) and denitrifiers (nirK and nirS) using quantitative PCR and sequencing, respectively. We found that the PNA and PDA in the subtropical soil increased when P was added and PNA in the temperate forest soil increased when either N or P was added. The PNA and PDA were positively correlated with the abundance of ammonia-oxidizing bacteria and nirK-denitrifiers, respectively, in the subtropical forest soil but were not correlated with changes in corresponding community compositions in either of the forest soils. The soil total N to total P ratio explained most of the variabilities in the PNA and PDA in the subtropical forest soils, and the soil exchangeable ammonium concentrations and pH were the main controls on the PNA and PDA, respectively, in the temperate forest soils. Our results indicate that soil environmental conditions have more influence on variations in the PNA and PDA in forest soils fertilized with N and P than the corresponding microbial properties. (C) 2018 Elsevier B.V. All rights reserved.
KeywordForest soils Nitrogen and phosphorus additions Nitrifying community Denitrifying community Potential nitrification Potential denitrification
DOI10.1016/j.scitotenv.2018.07.437
WOS KeywordAMMONIA-OXIDIZING BACTERIA ; LONG-TERM FERTILIZATION ; CHINESE FIR PLANTATIONS ; COMMUNITY STRUCTURE ; TERRESTRIAL ECOSYSTEMS ; FUNCTIONAL GENES ; PHOSPHORUS ADDITIONS ; NITROGEN DEPOSITION ; NORTHEAST CHINA ; GLOBAL CHANGE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31420103917] ; National Natural Science Foundation of China[41571251] ; National Natural Science Foundation of China[31290221]
Funding OrganizationNational Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000447090400066
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52732
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYu, Guirui; Zhang, Xinyu
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Beijing Normal Univ, Coll Life Sci, Beijing 100875, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Tang, Yugian,Yu, Guirui,Zhang, Xinyu,et al. Environmental variables better explain changes in potential nitrification and denitrification activities than microbial properties in fertilized forest soils[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,647:653-662.
APA Tang, Yugian.,Yu, Guirui.,Zhang, Xinyu.,Wang, Qiufeng.,Tian, Dashuan.,...&Ge, Jianping.(2019).Environmental variables better explain changes in potential nitrification and denitrification activities than microbial properties in fertilized forest soils.SCIENCE OF THE TOTAL ENVIRONMENT,647,653-662.
MLA Tang, Yugian,et al."Environmental variables better explain changes in potential nitrification and denitrification activities than microbial properties in fertilized forest soils".SCIENCE OF THE TOTAL ENVIRONMENT 647(2019):653-662.
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