Area  Ecosystem  lon_W  lon_E  lat_S  lat_N  num_pixels  min_gvf              max_gvf  mean_gvf std_gvf
          Global            global -180.0  180.0  -40.0   40.0  5875760   1.0 100.0                       29.5  26.2
 E-Sahara(LYBIA)            desert   23.0   24.0   28.0   29.0      841   3.0   5.0                        4.1   0.4
Great-Sandy(AUS)       semi-desert  125.0  126.0  -21.0  -20.0      841   5.0  15.0                       10.6   1.3
   Colorado(USA)            steppe -103.0 -102.0   36.0   37.0      841   3.0  45.0                       12.9   5.8
   Illinois(USA)             crops  -89.0  -88.0   39.0   40.0      841   1.0  25.0                        8.9   5.0
   Kentucky(USA) broad_leaf_forest  -85.0  -84.0   36.0   37.0      841   8.0  48.0                       20.5   7.2
     Oregon(USA) coniferous_forest -123.0 -122.0   43.0   44.0      841   1.0  61.0                       26.9  11.1
  Amazon(BRAZIL)   tropical_forest  -63.0  -62.0   -3.0   -2.0      812  27.0  95.0                       66.3  14.3