Mapping tree density at a global scale

T. W. Crowther (), H. B. Glick, K. R. Covey, C. Bettigole, D. S. Maynard, S. M. Thomas, J. R. Smith, G. Hintler, M. C. Duguid, G. Amatulli, M.-N. Tuanmu, W. Jetz, C. Salas, C. Stam, D. Piotto, R. Tavani, S. Green, G. Bruce, S. J. Williams, S. K. Wiser, M. O. Huber, G. M. Hengeveld, G.-J. Nabuurs, E. Tikhonova, P. Borchardt, C.-F. Li, L. W. Powrie, M. Fischer, A. Hemp, J. Homeier, P. Cho, A. C. Vibrans, P. M. Umunay, S. L. Piao, C. W. Rowe, M. S. Ashton, P. R. Crane and M. A. Bradford
Additional contact information
T. W. Crowther: Yale School of Forestry and Environmental Studies, Yale University
H. B. Glick: Yale School of Forestry and Environmental Studies, Yale University
K. R. Covey: Yale School of Forestry and Environmental Studies, Yale University
C. Bettigole: Yale School of Forestry and Environmental Studies, Yale University
D. S. Maynard: Yale School of Forestry and Environmental Studies, Yale University
S. M. Thomas: University of Helsinki
J. R. Smith: Yale School of Forestry and Environmental Studies, Yale University
G. Hintler: Yale School of Forestry and Environmental Studies, Yale University
M. C. Duguid: Yale School of Forestry and Environmental Studies, Yale University
G. Amatulli: Yale University
M.-N. Tuanmu: Yale University
W. Jetz: Yale School of Forestry and Environmental Studies, Yale University
C. Salas: Universidad de La Frontera
C. Stam: RedCastle Resources
D. Piotto: Universidade Federal do Sul da Bahia
R. Tavani: Food and Agriculture Organization of the United Nations
S. Green: Operation Wallacea
G. Bruce: Operation Wallacea
S. J. Williams: Molecular Imaging Research Center MIRCen/CEA, CNRS URA 2210
S. K. Wiser: Landcare Research
M. O. Huber: WSL, Swiss Federal Institute for Forest, Snow and Landscape Research
G. M. Hengeveld: Environmental Science Group, Wageningen University & Research Centre
G.-J. Nabuurs: Environmental Science Group, Wageningen University & Research Centre
E. Tikhonova: Center for Forest Ecology and Productivity RAS
P. Borchardt: CEN Center for Earth System Research and Sustainability, Institute of Geography, University of Hamburg
C.-F. Li: Masaryk University
L. W. Powrie: South African National Biodiversity Institute, Kirstenbosch Research Centre
M. Fischer: Institute of Plant Sciences, Botanical Garden, and Oeschger Centre for Climate Change Research, University of Bern
A. Hemp: University of Bayreuth
J. Homeier: Albrecht von Haller Institute of Plant Sciences, Georg August University of Göttingen
P. Cho: Tropical Ecology Research Group, Lancaster Environment Centre, Lancaster University
A. C. Vibrans: Universidade Regional de Blumenau
P. M. Umunay: Yale School of Forestry and Environmental Studies, Yale University
S. L. Piao: Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University
C. W. Rowe: Yale School of Forestry and Environmental Studies, Yale University
M. S. Ashton: Yale School of Forestry and Environmental Studies, Yale University
P. R. Crane: Yale School of Forestry and Environmental Studies, Yale University
M. A. Bradford: Yale School of Forestry and Environmental Studies, Yale University

Nature, 2015, vol. 525, issue 7568, 201-205

Abstract: Ground-sourced tree density data is assembled to provide a global map of tree density, which reveals that there are three trillion trees (tenfold more than previous estimates); tree numbers have declined by nearly half since the start of human civilization and over 15 billion trees are lost on an annual basis.

Date: 2015
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DOI: 10.1038/nature14967

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