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Montane ecosystem productivity responds more to global circulation patterns than climatic trends
Desai, A.R. (University of Wisconsin-Madison. Departament of Atmospheric and Oceanic Sciences)
Wohlfahrt, G. (Universität Innsbruck, Institut für Ökologie)
Zeeman, M. J. (Karlsruhe Institut für Technologie)
Katata, G. (Karlsruhe Institut für Technologie)
Eugster, W. (Institut für Agrarwissenschaften ETH Zürich)
Montagnani, L. (Libera università di Bolzano. Facultà di scienze e tecnologie)
Gianelle, D. (Fondazione Edmund Mach. Centro Ricerca e Innovazione. Dipartimento agroecosistemi sostenibili e biorisorse)
Mauder, M. (Karlsruhe Institut für Technologie)
Schmid, H-P. (Karlsruhe Institut für Technologie)

Data: 2016
Resum: Regional ecosystem productivity is highly sensitive to inter-annual climate variability, both within and outside the primary carbon uptake period. However, Earth system models lack sufficient spatial scales and ecosystem processes to resolve how these processes may change in a warming climate. Here, we show, how for the European Alps, mid-latitude Atlantic ocean winter circulation anomalies drive high-altitude summer forest and grassland productivity, through feedbacks among orographic wind circulation patterns, snowfall, winter and spring temperatures, and vegetation activity. Therefore, to understand future global climate change influence to regional ecosystem productivity, Earth systems models need to focus on improvements towards topographic downscaling of changes in regional atmospheric circulation patterns and to lagged responses in vegetation dynamics to non-growing season climate anomalies.
Nota: Ajuts: we thank the support of KIT IMK-IFU, the University of Wisconsin sabbatical leave program, and the Helmholtz Society/MICMOR fellowship program. We also thank the DWD for German weather data. Phenology data were provided by the members of the PEP725 project. We are indebted to the providers and funders of the eddy covariance flux tower observations, the FLUXNET program, and its database. The sites in Graswang, Rottenbuch and Fendt belong to the TERENO and ICOS-ecosystems networks, funded by Bundesministerium für Bildung und Forschung(BMBF)and the Helmholtz Association. The modeling study of SOLVEG was partially supported by Grant-in-Aid for Scientific Research, no. 21120512, provided by the Japan Society for the Promotion of Science(JSPS). This study was financially supported by the Austrian National Science Fund(FWF) under contract P26425 to GW.
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Matèria: Foehn ; Atmospheric circulation ; Alpine ecology ; Ecosystem carbon uptake ; Climatic change and variability
Publicat a: Environmental research letters, Vol. 11, no. 2 (Feb. 2016) , ISSN 1748-9326

DOI: 10.1088/1748-9326/11/2/024013
PMID: 28458719

10 p, 2.2 MB

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