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Environmental variables better explain changes in potential nitrification and denitrification activities than microbial properties in fertilized forest soils

文献类型：期刊论文

作者Tang, Yugian1,2,3; Yu, Guirui1,2; Zhang, Xinyu1,2; Wang, Qiufeng1,2; Tian, Dashuan2; Tian, Jing1,2; Niu, Shuli1,2; Ge, Jianping2,3
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2019-01-10
卷号647页码:653-662
ISSN号0048-9697
关键词Forest soils Nitrogen and phosphorus additions Nitrifying community Denitrifying community Potential nitrification Potential denitrification
DOI10.1016/j.scitotenv.2018.07.437
通讯作者Yu, Guirui(yugr@igsnrr.ac.cn) ; Zhang, Xinyu(zhangxy@igsnrr.ac.cn)
英文摘要Because 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.
WOS关键词AMMONIA-OXIDIZING BACTERIA ; LONG-TERM FERTILIZATION ; CHINESE FIR PLANTATIONS ; COMMUNITY STRUCTURE ; TERRESTRIAL ECOSYSTEMS ; FUNCTIONAL GENES ; PHOSPHORUS ADDITIONS ; NITROGEN DEPOSITION ; NORTHEAST CHINA ; GLOBAL CHANGE
资助项目National Natural Science Foundation of China[31420103917] ; National Natural Science Foundation of China[41571251] ; National Natural Science Foundation of China[31290221]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000447090400066
资助机构National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/52731]  
专题地理科学与资源研究所_生态系统研究网络观测与模拟重点实验室_CERN水分分中心
通讯作者Yu, Guirui; Zhang, Xinyu
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Beijing Normal Univ, Coll Life Sci, Beijing 100875, Peoples R China
推荐引用方式
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.

入库方式： OAI收割

来源：地理科学与资源研究所

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