FIGURE 1. Land use by agriculture and other uses.
From the following article:
Assessing the risks associated with new agricultural practices
R. S. Hails
Nature 418, 685-688(8 August 2002)
doi:10.1038/nature01016
a, Land use for the United Kingdom in 2000. The total area classified as agricultural land is 70%, including both cropland and grassland/rough grazing. Source: ref. 50. b, Principal uses of land in the United States in 1997. Source: ref. 51.