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. (författare): 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 (författare): Danmarks Tekniske Universitet,Technical University of Denmark

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

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

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

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

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

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

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

Legout, Arnaud (författare): 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 (författare): Chalmers tekniska högskola,Chalmers University of Technology

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

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

Loustau, Denis (författare): 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 (författare): Forest Service of Autonomous Province of Bolzano,Free University of Bozen-Bolzano

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

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

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

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

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

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

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

Varlagin, Andrej (författare): Russian Academy of Sciences

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

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

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

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

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

Dammgen, Ulrich (författare): 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 (författare): Université Paris-Sud XI,University of Paris-Sud XI

Djuricic, Vesna (författare): Meteorological and Hydrological Service

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

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

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

Fauvel, Yannick (författare): 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 (författare): UK Centre For Ecology & Hydrology (UKCEH)

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

Granier, Andre (författare): 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 (författare): 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 (författare): 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 (författare): UK Centre For Ecology & Hydrology (UKCEH)

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

Horvath, Laszlo (författare)

Kitzler, Barbara (författare)

Kruijt, Bart (författare): Wageningen University and Research

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

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

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

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

Marek, (författare): Czech Academy of Sciences

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

Mitosinkova, Marta (författare): Slovak Hydrometeorological Institute

Moreaux, Virginie (författare): 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 (författare)

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

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

Pita, Gabriel (författare): Instituto Superior Tecnico

Sanz, Francisco (författare)

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

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

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

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

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

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

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

Vidic, Sonja (författare): Meteorological and Hydrological Service

Vincke, Caroline (författare): Universite catholique de Louvain

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

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

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

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

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

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(creator_code:org_t)

2020-03-26
2020
Engelska.
Ingår i: Biogeosciences. - : Copernicus GmbH. - 1726-4170 .- 1726-4189. ; 17:6, s. 1583-1620

Relaterad länk:: https://research.cha... (primary) (free); visa fler...; https://bg.copernicu...; https://doi.org/10.5...; https://research.cha...; https://research.cha...; visa färre...

Tidskriftsartikel (refereegranskat)

Abstract Ämnesord

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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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Av författaren/redakt...: Flechard, Chris ...; Ibrom, Andreas; Skiba, Ute M.; de Vries, Wim; van Oijen, Marce ...; Cameron, David R ...; visa fler...; 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.; visa färre...

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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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