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Article Dans Une Revue Nature Climate Change Année : 2014

Land management and land-cover change have impacts of similar magnitude on surface temperature

1 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
2 IGN - Department of Geosciences and Natural Resource Management [Copenhagen]
3 Department of Land Resources and Environmental Sciences
4 HU Berlin - Humboldt-Universität zu Berlin = Humboldt University of Berlin = Université Humboldt de Berlin
5 MPI-M - Max Planck Institute for Meteorology
6 Institute for Agricultural Climate Research
7 Institute of Social Ecology Vienna (SEC)
8 Universiteitsplein
9 TU Dresden - Technische Universität Dresden = Dresden University of Technology
10 Woods Hole Research Center
11 UREP - Unité de recherche sur l'Ecosystème Prairial
12 Georg-August-University = Georg-August-Universität Göttingen
13 Northern Arizona University
14 PIK - Potsdam Institute for Climate Impact Research
15 Climate Change Research
16 EPHYSE - Écologie fonctionnelle et physique de l'environnement
17 UCL - Université Catholique de Louvain = Catholic University of Louvain
18 WUR - Wageningen University and Research Centre
19 USDA - United States Department of Agriculture
20 IVC-SEP - Department of Chemical and Biochemical Engineering
21 CESAM and Department of Environment
22 CEFE - Centre d’Ecologie Fonctionnelle et Evolutive
23 German Research Center for Environmental Health - Helmholtz Center München (GmbH)
24 INSU - CNRS - Institut national des sciences de l'Univers
25 School of Natural Resources
26 RAS - Russian Academy of Sciences [Moscow]
27 GFZ - German Research Centre for Geosciences - Helmholtz-Centre Potsdam
28 VU - Vrije Universiteit Amsterdam [Amsterdam]
Julia Pongratz
Axel Don
Bert Gielen
  • Fonction : Auteur
Thomas Kolb
Annalea Lohila
Andrej Varlagin

Résumé

Anthropogenic changes to land cover (LCC) remain common, but continuing land scarcity promotes the widespread intensification of land management changes (LMC) to better satisfy societal demand for food, fibre, fuel and shelter. The biophysical effects of LCC on surface climate are largely understood, particularly for the boreal and tropical zones, but fewer studies have investigated the biophysical consequences of LMC; that is, anthropogenic modification without a change in land cover type. Harmonized analysis of ground measurements and remote sensing observations of both LCC and LMC revealed that, in the temperate zone, potential surface cooling from increased albedo is typically offset by warming from decreased sensible heat fluxes, with the net effect being a warming of the surface. Temperature changes from LMC and LCC were of the same magnitude, and averaged 2 K at the vegetation surface and were estimated at 1.7 K in the planetary boundary layer. Given the spatial extent of land management (42-58% of the land surface) this calls for increasing the efforts to integrate land management in Earth System Science to better take into account the human impact on the climate.

Dates et versions

hal-02641525 , version 1 (28-05-2020)

Identifiants

Citer

Sebastiaan Luyssaert, Mathilde Jammet, Paul C. Stoy, Stephan Estel, Julia Pongratz, et al.. Land management and land-cover change have impacts of similar magnitude on surface temperature. Nature Climate Change, 2014, 4 (5), pp.389-393. ⟨10.1038/nclimate2196⟩. ⟨hal-02641525⟩
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