globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12591
Scopus记录号: 2-s2.0-84959556039
论文题名:
Global patterns and substrate-based mechanisms of the terrestrial nitrogen cycle
作者: Niu S.; Classen A.T.; Dukes J.S.; Kardol P.; Liu L.; Luo Y.; Rustad L.; Sun J.; Tang J.; Templer P.H.; Thomas R.Q.; Tian D.; Vicca S.; Wang Y.-P.; Xia J.; Zaehle S.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期:6
起始页码: 697
结束页码: 709
语种: 英语
英文关键词: Leaching ; Mineralisation ; Nitrification ; Nitrogen deposition ; Nitrogen loss ; Plant N uptake ; Saturation ; Soil N retention ; Threshold
Scopus关键词: atmospheric deposition ; ecosystem function ; functional response ; global change ; leaching ; mineralization ; nitrification ; nitrogen cycle ; nutrient loss ; nutrient uptake ; plant ; soil nitrogen ; substrate ; threshold ; nitrogen ; soil ; chemistry ; ecosystem ; metabolism ; microbiology ; nitrogen cycle ; plant ; plant physiology ; soil ; theoretical model ; Ecosystem ; Models, Theoretical ; Nitrogen ; Nitrogen Cycle ; Plant Physiological Phenomena ; Plants ; Soil ; Soil Microbiology
英文摘要: Nitrogen (N) deposition is impacting the services that ecosystems provide to humanity. However, the mechanisms determining impacts on the N cycle are not fully understood. To explore the mechanistic underpinnings of N impacts on N cycle processes, we reviewed and synthesised recent progress in ecosystem N research through empirical studies, conceptual analysis and model simulations. Experimental and observational studies have revealed that the stimulation of plant N uptake and soil retention generally diminishes as N loading increases, while dissolved and gaseous losses of N occur at low N availability but increase exponentially and become the dominant fate of N at high loading rates. The original N saturation hypothesis emphasises sequential N saturation from plant uptake to soil retention before N losses occur. However, biogeochemical models that simulate simultaneous competition for soil N substrates by multiple processes match the observed patterns of N losses better than models based on sequential competition. To enable better prediction of terrestrial N cycle responses to N loading, we recommend that future research identifies the response functions of different N processes to substrate availability using manipulative experiments, and incorporates the measured N saturation response functions into conceptual, theoretical and quantitative analyses. Copyright © 2016 John Wiley & Sons Ltd/CNRS.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107754
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; The Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, København Ø, Denmark; Department of Forestry and Natural Resources, Department of Biological Sciences, Purdue Climate Change Research Center, Purdue University, West Lafayette, IN, United States; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden; State Key Laboratory of Vegetation and Environment Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, United States; U.S. Forest Service, Northern Research Station, Durham, NH, United States; The Ecosystem Center, Marine Biological Laboratory, Woods Hole, MA, United States; Department of Biology, Boston University, Boston, MA, United States; Department of Forest Resources and Environmental Conservation, Virginia Tech, Blacksburg, VA, United States; Research Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, Wilrijk, Belgium; CSIRO Ocean and Atmosphere, PMB 1, Aspendale, VIC, Australia; Tiantong National Station of Forest Ecosystem andSchool of Ecological and Enivronmental Science, East China Normal University, Shanghai, China; Research Center for Global Change and Ecological Forecasting, East China Normal University, Shanghai, China; Biogeochemical Integration Department, Max Planck Institute for Biogeochemistry, Hans-Knöll-Str. 10, Jena, Germany

Recommended Citation:
Niu S.,Classen A.T.,Dukes J.S.,et al. Global patterns and substrate-based mechanisms of the terrestrial nitrogen cycle[J]. Ecology Letters,2016-01-01,19(6)
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