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Soil extracellular enzyme activities, soil carbon and nitrogen storage under nitrogen fertilization: A meta-analysis | |
Jian, Siyang1; Li, Jianwei1; Chen, Ji2,3; Wang, Gangsheng4,5; Mayes, Melanie A.4,5; Dzantor, Kudjo E.1; Hui, Dafeng6; Luo, Yiqi3 | |
2016-10-01 | |
发表期刊 | SOIL BIOLOGY & BIOCHEMISTRY |
卷号 | 101期号:2016页码:32-43 |
文章类型 | Article |
摘要 | Nitrogen (N) fertilization affects the rate of soil organic carbon (SOC) decomposition by regulating extracellular enzyme activities (EEA). Extracellular enzymes have not been represented in global biogeochemical models. Understanding the relationships among EEA and SOC, soil N (TN), and soil microbial biomass carbon (MBC) under N fertilization would enable modeling of the influence of EEA on SOC decomposition. Based on 65 published studies, we synthesized the activities of alpha-1,4-glucosidase (AG), beta-1,4-glucosidase (BG), beta-D-cellobiosidase (CBH), beta-1,4-xylosidase (BX), beta-1,4-N-acetyl-glucosaminidase (NAG), leucine amino peptidase (LAP), urease (UREA), acid phosphatase (AP), phenol oxidase (PHO), and peroxidase (PEO) in response to N fertilization. The proxy variables for hydrolytic C acquisition enzymes (C-acq), N acquisition (N-acq), and oxidative decomposition (OX) were calculated as the sum of AG, BG, CBH and BX; AG and LAP; PHO and PEO, respectively. The relationships between response ratios (RRs) of EEA and SOC, TN, or. MBC were explored when they were reported simultaneously. Results showed that N fertilization significantly increased CBH, C-acq, AP, BX, BG, AG, and UREA activities by 6.4, 9.1, 10.6, 11.0, 11.2, 12.0, and 18.6%, but decreased PEO, OX and PHO by 6.1, 7.9 and 11.1%, respectively. N fertilization enhanced SOC and TN by 7.6% and 15.3%, respectively, but inhibited MBC by 9.5%. Significant positive correlations were found only between the RRs of C-acq and MBC, suggesting that changes in combined hydrolase activities might act as a proxy for MBC under N fertilization. In contrast with other variables, the RRs of AP, MBC, and TN showed unidirectional trends under different edaphic, environmental, and physiological conditions. Our results provide the first comprehensive set of evidence of how hydrolase and oxidase activities respond to N fertilization in various ecosystems. Future large-scale model projections could incorporate the observed relationship between hydrolases and microbial biomass as a proxy for C acquisition under global N enrichment scenarios in different ecosystems. (C) 2016 Elsevier Ltd. All rights reserved. |
关键词 | Nitrogen Fertilization Extracellular Enzyme Activities (Eea) Soil Organic Carbon (Soc) Microbial Biomass Carbon (Mbc) Meta-analysis |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
DOI | 10.1016/j.soilbio.2016.07.003 |
关键词[WOS] | MICROBIAL COMMUNITY ; ELEVATED CO2 ; ECOENZYMATIC STOICHIOMETRY ; GLOBAL PERSPECTIVE ; METHANE OXIDATION ; DEPOSITION ; ECOSYSTEM ; RESPONSES ; FOREST ; LITTER |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Agriculture |
WOS类目 | Soil Science |
WOS记录号 | WOS:000383300200004 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/5688 |
专题 | 黄土与第四纪地质国家重点实验室(2010~) |
作者单位 | 1.Tennessee State Univ, Dept Agr & Environm Sci, Nashville, TN 37209 USA 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA 4.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA 5.Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA 6.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA |
推荐引用方式 GB/T 7714 | Jian, Siyang,Li, Jianwei,Chen, Ji,et al. Soil extracellular enzyme activities, soil carbon and nitrogen storage under nitrogen fertilization: A meta-analysis[J]. SOIL BIOLOGY & BIOCHEMISTRY,2016,101(2016):32-43. |
APA | Jian, Siyang.,Li, Jianwei.,Chen, Ji.,Wang, Gangsheng.,Mayes, Melanie A..,...&Luo, Yiqi.(2016).Soil extracellular enzyme activities, soil carbon and nitrogen storage under nitrogen fertilization: A meta-analysis.SOIL BIOLOGY & BIOCHEMISTRY,101(2016),32-43. |
MLA | Jian, Siyang,et al."Soil extracellular enzyme activities, soil carbon and nitrogen storage under nitrogen fertilization: A meta-analysis".SOIL BIOLOGY & BIOCHEMISTRY 101.2016(2016):32-43. |
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