Table 1. Summary of characteristics of the study and reference forests (00) in each region. Country Forest Soil Order Soil Suborder Total BA (m2/ha) BA Trees (m2/ha) Primary Dominant BA No. Tree Species Mean Tree Density Mean Tree DBH (cm) Bolivia BO01 Inceptisols Udepts  18.41 15.22 Ficus sp. 3.15 72 180 24.5 Bolivia BO02 Inceptisols Udepts  27.78 25.72 Ficus sp. 3.98 56 295 24.8 Bolivia BO03 Inceptisols Udepts  34.29 31. 20 Ficus sp. 8.44 59 326 26.6 Bolivia BO04 Inceptisols Udepts  37.72 35.19 Hura crepitans 5.35 57 266 28.2 Bolivia BO00 Entisols Orthents  51.22 46.68 Oenocarpus sp. 4.90 146 210 30.7 Brazil BR01 Oxisols Udox 31.74 27.68 Cenostigma tocantinum 1.26 165 440 22.6 Brazil BR02 Ultisols Ustults 24.85 20.96 Guatteria poeppigiana 4.10 61 547 20.6 Brazil BR03 Oxisols Udox 36.77 28.60 Apeiba glabra 5.37 39 927 18.7 Brazil BR04 Oxisols Udox 34.34 30.93 Eschweilera coriacea 7.39 37 180 23.3 Brazil BR00 Inceptisols Aquepts  50.49 44.33 Tapirira sp. 3.84 203 950 21.8 Guatemala ME01 Inceptisols Udepts 19.67 19.02 Pinus oocarpa 10.00 7 247 27.0 Guatemala ME02 Inceptisols Udepts 26.96 23.93 Pinus oocarpa 11.11 20 415 23.0 Guatemala ME03 Inceptisols Udepts 20.63 18.25 Pinus oocarpa 11.89 6 272 26.0 Guatemala ME04 Inceptisols Udepts 27.43 23.04 Pinus oocarpa 9.08 24 344 25.0 Guatemala ME05 Inceptisols Ustepts  16.37 14.50 Pinus oocarpa 13.31 10 329 21.0 Guatemala ME06 Inceptisols Ustepts  41.53 37.51 Liquidambar styraciflua 10.78 24 778 21.0 Guatemala ME07 Inceptisols Udepts 24.57 24.07 Pinus oocarpa 21.13 17 336 26.0 Honduras ME08 Inceptisols Ustepts  10.13 9.24 Pinus oocarpa 8.50 6 210 20.0 Honduras ME09 Inceptisols Ustepts  15.04 13.15 Pinus oocarpa 12.05 9 260 22.0 Honduras ME10 Inceptisols Ustepts  25.63 21.16 Pinus oocarpa 15.86 14 599 19.0 Honduras ME11 Inceptisols Ustepts  11.72 9.22 Pinus oocarpa 8.42 11 254 19.0 Mexico ME12 Inceptisols Ustepts  28.01 24.08 Quercus sp. 4.10 20 562 22.7 Mexico ME13 Inceptisols Ustepts  24.44 22.25 Quercus sp. 7.24 20 475 23.3 Mexico ME14 Inceptisols Ustepts  37.10 32.47 Quercus sp. 9.50 24 591 23.4 Mexico ME00 Inceptisols Ustepts  46.07 42.05 Pinus pseudostrobus 20.70 24 510 30.1 Nepal NE01 Inceptisols Udepts 10.42 1.96 Shorea robusta 1.63 18 130 13.3 Nepal NE02 Inceptisols Udepts 27.57 17.81 Shorea robusta 12.48 36 330 20.4 Nepal NE03 Inceptisols Udepts 26.66 22.43 Shorea robusta 16.73 32 257 28.8 Nepal NE04 Inceptisols Udepts 29.94 24.04 Shorea robusta 10.49 35 347 24.2 Nepal NE05 Inceptisols Udepts 24.70 19.59 Shorea robusta 6.30 41 295 25.0 Nepal NE00 Entisols Fluvents 33.34 32.46 Shorea robusta 15.78 43 405 39.4 Uganda UG01 Oxisols Udox 19.85 16.55 Pseudospondia macocarpa 3.13 42 269 24.3 Uganda UG02 Oxisols Udox 17.95 16.95 Celtis mildbreadii 2.53 49 313 21.7 Uganda UG03 Oxisols Udox 29.59 27.34 Tabernmontana holstii 6.81 57 365 23.8 Uganda UG00 Oxisols Udox 36.05 34.48 Cedrella odorata 4.16 60 384 28.2 USA US01 Alfisols Udalfs 29.21 27.48 Quercus alba 7.07 22 307 29.3 USA US02 Alfisols Udalfs 26.02 25.01 Liriodendron tulipifera 6.87 25 368 26.2 USA US03 Alfisols Udalfs 30.04 28.15 Quercus alba 4.93 24 354 28.0 USA US04 Alfisols Udalfs 30.23 28.86 Liriodendron tulipifera 6.36 25 325 29.4 USA US05 Alfisols Udalfs 32.03 30.95 Liriodendron tulipifera 7.06 28 326 30.1 USA US06 Alfisols Udalfs 24.27 22.48 Acer saccharum 2.61 28 641 22.5 USA US00 Alfisols Udalfs 49.42 47.27 Fagus grandifolia 11.86 32 420 33.2