Carbon-nitrogen interactions in European forests and semi-natural vegetation - Part 1: Fluxes and budgets of carbon, nitrogen and greenhouse gases from ecosystem monitoring and modelling

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Carbon-nitrogen interactions in European forests and semi-natural vegetation - Part 1: Fluxes and budgets of carbon, nitrogen and greenhouse gases from ecosystem monitoring and modelling

Flechard, Chris R. (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE)

Ibrom, Andreas (author): Danmarks Tekniske Universitet,Technical University of Denmark

Skiba, Ute M. (author): UK Centre For Ecology & Hydrology (UKCEH)

de Vries, Wim (author): Wageningen University and Research

van Oijen, Marcel (author): UK Centre For Ecology & Hydrology (UKCEH)

Cameron, David R. (author): UK Centre For Ecology & Hydrology (UKCEH)

Dise, Nancy B. (author): UK Centre For Ecology & Hydrology (UKCEH)

Korhonen, Janne F. J. (author): Helsingin Yliopisto,University of Helsinki

Buchmann, Nina (author): Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)

Legout, Arnaud (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE)

Simpson, David, 1961 (author): Chalmers tekniska högskola,Chalmers University of Technology

Sanz, Maria J. (author): Universidad del Pais Vasco / Euskal Herriko Unibertsitatea,University of the Basque Country (UPV/EHU)

Aubinet, Marc (author): Universite de Liège,University of Liège

Loustau, Denis (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE)

Montagnani, Leonardo (author): Forest Service of Autonomous Province of Bolzano,Free University of Bozen-Bolzano

Neirynck, Johan (author): Research Institute for Nature and Forest, Brussels

Janssens, Ivan A. (author): Universiteit Antwerpen,University of Antwerp

Pihlatie, Mari (author): Helsingin Yliopisto,University of Helsinki

Kiese, Ralf (author): Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT)

Siemens, Jan (author): Justus-Liebig-Universität Gießen,Justus Liebig University Giessen

Francez, Andre-Jean (author): Université de Rennes 1,University of Rennes 1

Augustin, Juergen (author): Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF),Leibniz Centre for Agricultural Landscape Research (ZALF)

Varlagin, Andrej (author): Russian Academy of Sciences

Olejnik, Janusz (author): Poznan University of Life Sciences

Juszczak, Radoslaw (author): Poznan University of Life Sciences

Aurela, Mika (author): Illmatieteen Laitos,Finnish Meteorological Institute (FMI)

Berveiller, Daniel (author): Université Paris-Sud XI,University of Paris-Sud XI

Chojnicki, Bogdan H. (author): Poznan University of Life Sciences

Dammgen, Ulrich (author): Johann Heinrich von Thünen-Institut Bundesforschungsinstitut für Ländliche Räume, Wald und Fischerei,Johann Heinrich von Thünen Institute Federal Research Institute for Rural Areas, Forestry and Fisheries

Delpierre, Nicolas (author): Université Paris-Sud XI,University of Paris-Sud XI

Djuricic, Vesna (author): Meteorological and Hydrological Service

Drewer, Julia (author): UK Centre For Ecology & Hydrology (UKCEH)

Dufrene, Eric (author): Université Paris-Sud XI,University of Paris-Sud XI

Eugster, Werner (author): Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)

Fauvel, Yannick (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE)

Fowler, David (author): UK Centre For Ecology & Hydrology (UKCEH)

Frumau, Arnoud (author): Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO),Netherlands Organisation for Applied Scientific Research (TNO)

Granier, Andre (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE)

Gross, Patrick (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE)

Hamon, Yannick (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE)

Helfter, Carole (author): UK Centre For Ecology & Hydrology (UKCEH)

Hensen, Arjan (author): Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO),Netherlands Organisation for Applied Scientific Research (TNO)

Horvath, Laszlo (author)

Kitzler, Barbara (author)

Kruijt, Bart (author): Wageningen University and Research

Kutsch, Werner L. (author): Integrated Carbon Observation System (ICOS ERIC)

Lobo-do-Vale, Raquel (author): Universidade de Lisboa,University of Lisbon

Lohila, Annalea (author): Illmatieteen Laitos,Finnish Meteorological Institute (FMI),Helsingin Yliopisto,University of Helsinki

Longdoz, Bernard (author): Gembloux Agro-Bio Tech

Marek, (author): Czech Academy of Sciences

Matteucci, Giorgio (author): Consiglio Nazionale delle Ricerche (CNR),National Research Council of Italy (CNR)

Mitosinkova, Marta (author): Slovak Hydrometeorological Institute

Moreaux, Virginie (author): Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE),National Research Institute for Agriculture, Food and the Environment (INRAE),Université Grenoble Alpes,Grenoble Alpes University

Neftel, Albrecht (author)

Ourcival, Jean-Marc (author): Université de Montpellier,University of Montpellier

Pilegaard, Kim (author): Danmarks Tekniske Universitet,Technical University of Denmark

Pita, Gabriel (author): Instituto Superior Tecnico

Sanz, Francisco (author)

Schjoerring, Jan K. (author): Köpenhamns universitet,University of Copenhagen

Sebastia, Maria-Teresa (author): Universidad De Lleida

Tang, Y. Sim (author): UK Centre For Ecology & Hydrology (UKCEH)

Uggerud, Hilde (author): Norsk institutt for luftforskning (NILU),Norwegian Institute for Air Research (NILU)

Urbaniak, Marek (author): Poznan University of Life Sciences

van Dijk, Netty (author): UK Centre For Ecology & Hydrology (UKCEH)

Vesala, Timo (author): Helsingin Yliopisto,University of Helsinki

Vidic, Sonja (author): Meteorological and Hydrological Service

Vincke, Caroline (author): Universite catholique de Louvain

Weidinger, Tamas (author): Eötvös Loránd University (ELTE)

Zechmeister-Boltenstern, Sophie (author): Universität für Bodenkultur,University of Natural Resources and Life Sciences

Butterbach-Bah, Klaus (author): Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT)

Nemitz, Eiko (author): UK Centre For Ecology & Hydrology (UKCEH)

Sutton, Mark A. (author): UK Centre For Ecology & Hydrology (UKCEH)

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2020-03-26
2020
English.
In: Biogeosciences. - : Copernicus GmbH. - 1726-4170 .- 1726-4189. ; 17:6, s. 1583-1620

Related links:: https://research.cha... (primary) (free); show more...; https://bg.copernicu...; https://doi.org/10.5...; https://research.cha...; https://research.cha...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

The impact of atmospheric reactive nitrogen (N-r) deposition on carbon (C) sequestration in soils and biomass of unfertilized, natural, semi-natural and forest ecosystems has been much debated. Many previous results of this dC/dN response were based on changes in carbon stocks from periodical soil and ecosystem inventories, associated with estimates of N-r deposition obtained from large-scale chemical transport models. This study and a companion paper (Flechard et al., 2020) strive to reduce uncertainties of N effects on C sequestration by linking multi-annual gross and net ecosystem productivity estimates from 40 eddy covariance flux towers across Europe to local measurement-based estimates of dry and wet N-r deposition from a dedicated collocated monitoring network. To identify possible ecological drivers and processes affecting the interplay between C and N-r inputs and losses, these data were also combined with in situ flux measurements of NO, N2O and CH4 fluxes; soil NO3- leaching sampling; and results of soil incubation experiments for N and greenhouse gas (GHG) emissions, as well as surveys of available data from online databases and from the literature, together with forest ecosystem (BAS-FOR) modelling. Multi-year averages of net ecosystem productivity (NEP) in forests ranged from -70 to 826 gCm(-2) yr(-1) at total wet + dry inorganic N-r deposition rates (N-dep) of 0.3 to 4.3 gNm(-2) yr(-1) and from -4 to 361 g Cm-2 yr(-1) at N-dep rates of 0.1 to 3.1 gNm(-2) yr(-1) in short semi-natural vegetation (moorlands, wetlands and unfertilized extensively managed grasslands). The GHG budgets of the forests were strongly dominated by CO2 exchange, while CH4 and N2O exchange comprised a larger proportion of the GHG balance in short semi-natural vegetation. Uncertainties in elemental budgets were much larger for nitrogen than carbon, especially at sites with elevated N-dep where N-r leaching losses were also very large, and compounded by the lack of reliable data on organic nitrogen and N-2 losses by denitrification. Nitrogen losses in the form of NO, N2O and especially NO3- were on average 27%(range 6 %-54 %) of N-dep at sites with N-dep < 1 gNm(-2) yr(-1) versus 65% (range 35 %-85 %) for N-dep > 3 gNm(-2) yr(-1). Such large levels of N-r loss likely indicate that different stages of N saturation occurred at a number of sites. The joint analysis of the C and N budgets provided further hints that N saturation could be detected in altered patterns of forest growth. Net ecosystem productivity increased with N-r deposition up to 2-2.5 gNm(-2) yr(-1), with large scatter associated with a wide range in carbon sequestration efficiency (CSE, defined as the NEP/GPP ratio). At elevated N-dep levels (> 2.5 gNm(-2) yr(-1)), where inorganic N-r losses were also increasingly large, NEP levelled off and then decreased. The apparent increase in NEP at low to intermediate N-dep levels was partly the result of geographical cross-correlations between N-dep and climate, indicating that the actual mean dC/dN response at individual sites was significantly lower than would be suggested by a simple, straightforward regression of NEP vs. N-dep.

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By the author/editor: Flechard, Chris ...; Ibrom, Andreas; Skiba, Ute M.; de Vries, Wim; van Oijen, Marce ...; Cameron, David R ...; show more...; Dise, Nancy B.; Korhonen, Janne ...; Buchmann, Nina; Legout, Arnaud; Simpson, David, ...; Sanz, Maria J.; Aubinet, Marc; Loustau, Denis; Montagnani, Leon ...; Neirynck, Johan; Janssens, Ivan A ...; Pihlatie, Mari; Kiese, Ralf; Siemens, Jan; Francez, Andre-J ...; Augustin, Juerge ...; Varlagin, Andrej; Olejnik, Janusz; Juszczak, Radosl ...; Aurela, Mika; Berveiller, Dani ...; Chojnicki, Bogda ...; Dammgen, Ulrich; Delpierre, Nicol ...; Djuricic, Vesna; Drewer, Julia; Dufrene, Eric; Eugster, Werner; Fauvel, Yannick; Fowler, David; Frumau, Arnoud; Granier, Andre; Gross, Patrick; Hamon, Yannick; Helfter, Carole; Hensen, Arjan; Horvath, Laszlo; Kitzler, Barbara; Kruijt, Bart; Kutsch, Werner L ...; Lobo-do-Vale, Ra ...; Lohila, Annalea; Longdoz, Bernard; Marek,; Matteucci, Giorg ...; Mitosinkova, Mar ...; Moreaux, Virgini ...; Neftel, Albrecht; Ourcival, Jean-M ...; Pilegaard, Kim; Pita, Gabriel; Sanz, Francisco; Schjoerring, Jan ...; Sebastia, Maria- ...; Tang, Y. Sim; Uggerud, Hilde; Urbaniak, Marek; van Dijk, Netty; Vesala, Timo; Vidic, Sonja; Vincke, Caroline; Weidinger, Tamas; Zechmeister-Bolt ...; Butterbach-Bah, ...; Nemitz, Eiko; Sutton, Mark A.; show less...

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AGRICULTURAL SCIENCES: AGRICULTURAL SCI ...; and Other Agricultur ...; and Environmental Sc ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Physical Geograp ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Environmental Sc ...

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By the university: Chalmers University of Technology

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Carbon-nitrogen interactions in European forests and semi-natural vegetation - Part 1: Fluxes and budgets of carbon, nitrogen and greenhouse gases from ecosystem monitoring and modelling

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