globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13402
论文题名:
Costimulation of soil glycosidase activity and soil respiration by nitrogen addition
作者: Chen J.; Luo Y.; Li J.; Zhou X.; Cao J.; Wang R.-W.; Wang Y.; Shelton S.; Jin Z.; Walker L.M.; Feng Z.; Niu S.; Feng W.; Jian S.; Zhou L.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:3
起始页码: 1328
结束页码: 1337
语种: 英语
英文关键词: glycosidase activity ; meta-analysis ; nitrogen addition ; soil respiration ; soil type ; vegetation type
英文摘要: Unprecedented levels of nitrogen (N) have been deposited in ecosystems over the past century, which is expected to have cascading effects on microbially mediated soil respiration (SR). Extracellular enzymes play critical roles on the degradation of soil organic matter, and measurements of their activities are potentially useful indicators of SR. The links between soil extracellular enzymatic activities (EEAs) and SR under N addition, however, have not been established. We therefore conducted a meta-analysis from 62 publications to synthesize the responses of soil EEAs and SR to elevated N. Nitrogen addition significantly increased glycosidase activity (GA) by 13.0%, α-1,4-glucosidase (AG) by 19.6%, β-1,4-glucosidase (BG) by 11.1%, β-1,4-xylosidase (BX) by 21.9% and β-D-cellobiosidase (CBH) by 12.6%. Increases in GA were more evident for long duration, high rate, organic and mixed N addition (combination of organic and inorganic N addition), as well as for studies from farmland. The response ratios (RRs) of GA were positively correlated with the SR-RRs, even when evaluated individually for AG, BG, BX and CBH. This positive correlation between GA-RR and SR-RR was maintained for most types of vegetation and soil as well as for different methods of N addition. Our results provide the first evidence that GA is linked to SR under N addition over a range of ecosystems and highlight the need for further studies on the response of other soil EEAs to various global change factors and their implications for ecosystem functions. © 2016 John Wiley & Sons Ltd
资助项目: This study was supported by the Ministry of Science and Technology (2012BAH31B03) and the State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences (SKLLQG1303). Contributions from Dr. Luo's Eco-lab to this study were financially supported by Terrestrial Ecosystem Sciences grant DE SC0008270 from the U.S. Department of Energy and by the US National Science Foundation grants DBI 0850290, EPS0919466, DEB 0743778, DEB 0840964 and EF 1137293. Contributions from Dr. Jianwei Li's laboratory were financially supported by USDA National Institute of Food and Agriculture – Evans-Allen project No. 1005761. Contributions from Dr. Xuhui Zhou's laboratory were financially supported by the National Natural Science Foundation of China (31290221, 31070407 and 31370489), the National Basic Research Program (973 Program) of China (No. 2010CB833502), the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning and the ‘Thousand Young Talents’ Program in China. The authors also gratefully acknowledge financial support from the China Scholarship Council (an award for one year of study abroad at the University of Oklahoma).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61036
Appears in Collections:影响、适应和脆弱性

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作者单位: Center for Ecological and Environmental Sciences, Northwestern Polytechnical University, Xi'an, China; State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; University of Chinese Academy of Sciences, Beijing, China; Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, United States; Center for Earth System Science, Tsinghua University, Beijing, China; Department of Agriculture and Environmental Sciences, Tennessee State University, Nashville, TN, United States; Tiantong National Field Observation Station for Forest Ecosystem, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China; Center for Global Change and Ecological Forecasting, East China Normal University, Shanghai, China; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China; Department of Biological Sciences, University of Arkansas, Fayetteville, AR, United States; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; Synthesis Research Center of Chinese Ecosystem Research Network, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Chen J.,Luo Y.,Li J.,et al. Costimulation of soil glycosidase activity and soil respiration by nitrogen addition[J]. Global Change Biology,2017-01-01,23(3)
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