18 Major Crops Dataset

This dataset is described in Leff, B., Ramankutty, N., and Foley, J.A. (2004). Geographic distribution of major crops across the world Global Biogeochemical Cycles, Vol. 18, No. 1, GB1009 10.1029/2003GB002108, 16 January 2004

PLEASE NOTE: The Leff et al. data were recently updated to the Year 2000, and now considered to be outdated.  The more recent data set to use is that by Monfreda et al. (2008), and you may download the data from:
http://www.geog.mcgill.ca/~nramankutty/Datasets/Datasets.html

Updated: 3/15/09

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