Trees are found in forests and outside the forest. Trees outside the forest are located in urban areas, on farms, and in natural plant formations that do not conform to the definition of forest (e.g. those in arid environments that do not meet minimum tree cover thresholds). Trees on farms (TonF) are dispersed in pastures or crop fields, in linear features (live fences, windbreaks, farm boundaries and internal divisions, on the sides of roads and watercourses), in patches or in regular plantation arrangements, solitary or in groups, with regular or variable density.