1 Department of Chemical and Biochemical Engineering, Technical University of Denmark2 Ecosystems Programme, Department of Chemical and Biochemical Engineering, Technical University of Denmark3 Laboratoire des Sciences de Climat et de l’Environnement4 University of Copenhagen5 Montana State University6 Humboldt-Universität zu Berlin7 Max Planck Institute8 Université de Toulouse9 Johann Heinrich von Thünen-Institute10 University of Klagenfurt11 Research Group on Plant and Vegetation Ecology12 Dresden University of Technology13 Woods Hole Research Center14 National Institute for Agronomic Research15 University of Göttingen16 Northern Arizona University17 Potsdam Institute for Climate Impact Research18 Finnish Meteorological Institute19 Université Catholique de Louvain20 Alterra Green World Research21 United States Department of Agriculture22 Department of Environmental Engineering, Technical University of Denmark23 Aveiro University24 CEFE-CNRS25 UFZ Helmholtz Zentrum für Umweltforschung, Leipzig26 University of Nebraska27 Russian Academy of Sciences28 German Research Centre for Geosciences29 Vrije Universiteit Amsterdam30 Montana State University31 Finnish Meteorological Institute
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 shelter1. The biophysical effects of LCC on surface climate are largely understood2-5, particularly for the boreal6 and tropical zones7, 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 climate8.
Nature Climate Change, 2014, Vol 4, Issue 5, p. 389-393