Table 2. Transition matrix analysis of land-cover changes in Puerto Rico from 1991 to 2000

Land Cover 2000 Total Area
km2 in 1991
Percentage
in 1991
1991–2000 Grassland Forest Shrubland Urban Agriculture Sand & Rock
1991 Grassland 1736.1 668.5 469.1 302.2 64.6 6.2 3246.7 37.7
Forest 287.2 1815.8 260.6 46.9 11.5 3.0 2424.9 28.2
Shrubland 349.3 810.5 270.2 58.7 4.5 1.5 1494.5 17.3
Urban 226.6 72.8 62.4 534.6 5.2 4.7 906.4 10.5
Agriculture 227.0 46.4 30.9 30.1 177.2 0.7 512.3 6.0
Sand & Rock 6.0 2.9 1.6 2.1 0.4 9.6 22.6 0.3
Total Area km2 in 2000 2832.2 3416.9 1094.8 974.6 263.3 25.7 8607.4 100
Percentage in 2000 32.9 39.7 12.7 11.3 3.1 0.3