Biomass production efficiency controlled by management in temperate and boreal ecosystems
Campioli, Matteo (Universiteit Antwerpen. Departement Biologie)
Vicca, Sara (Universiteit Antwerpen. Departement Biologie)
Luyssaert, Sebastiaan (Laboratoire des Sciences du Climat et de l'Environment)
Bilcke, J. (Universiteit Antwerpen. Centre for Health Economics Research and Modeling Infectious Disease)
Ceschia, Eric (Centre d'Etudes Spatiales de la BIOsphère)
Chapin III, F. Stuart (University of Alaska Fairbanks. Institute of Arctic Biology)
Ciais, Philippe (Laboratoire des Sciences du Climat et de l'Environment)
Fernández-Martínez, Marcos (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Malhi, Yadvinder (University of Oxford. Environmental Change Institute)
Obersteiner, M. (International Institute for Applied Systems Analysis (Àustria))
Olefeldt, D. (University of Alberta. Department of Renewable Resource)
Papale, D. (Università degli studi della Tuscia. Dipartimento per l'Innovazione dei sistemi biologici, agroalimentari e forestali)
Piao, S. L. (Zhongguo ke xue yuan. Institute of Tibetan Plateau Research)
Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Sullivan, P. F. (University of Alaska Anchorage. Environment and Natural Resources Institute)
Wang, X. (Beijing da xue. College of Urban and Environmental Science)
Zenone, T. (University of Toledo. Department of Environmental Science)
Janssens, Ivan (Universiteit Antwerpen. Departement Biologie)

Fecha:	2015
Resumen:	Plants acquire carbon through photosynthesis to sustain biomass production, autotrophic respiration and production of non-structural compounds for multiple purposes1. The fraction of photosynthetic production used for biomass production, the biomass production efficiency2, is a key determinant of the conversion of solar energy to biomass. In forest ecosystems, biomass production efficiency was suggested to be related to site fertility2. Here we present a database of biomass production efficiency from 131 sites compiled from individual studies using harvest, biometric, eddy covariance, or process-based model estimates of production. The database is global, but dominated by data from Europe and North America. We show that instead of site fertility, ecosystem management is the key factor that controls biomass production efficiency in terrestrial ecosystems. In addition, in natural forests, grasslands, tundra, boreal peatlands and marshes, biomass production efficiency is independent of vegetation, environmental and climatic drivers. This similarity of biomass production efficiency across natural ecosystem types suggests that the ratio of biomass production to gross primary productivity is constant across natural ecosystems. We suggest that plant adaptation results in similar growth efficiency in high- and low-fertility natural systems, but that nutrient influxes under managed conditions favour a shift to carbon investment from the belowground flux of non-structural compounds to aboveground biomass.
Ayudas:	European Commission 610028 European Commission 242564
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Publicado en:	Nature geoscience, Vol. 8, No. 11 (Nov. 2015) , p. 843-846, ISSN 1752-0894

DOI: 10.1038/ngeo2553

Post-print 28 p, 433.6 KB

Supplementary material 59 p, 972.4 KB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
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