Unidades de paisagem e dinâmica temporal do uso e cobertura do solo na bacia hidrográfica do Rio das Pedras, Goiás, Brasil

The objective this paper was to evaluate the relationship of the physical environment with the vegetation cover, through landscape units. The study was developed in the Rio das Pedras watershed, in the state Goias state, based by an integrated landscape approach. For the definition of landscape units, geological characteristics were considered, geomorphological, pedological and morphometric features of the watershed. For the definition of landscape units, were considered the geological, geomorphological, pedological and morphometric characteristics of the watershed. In the temporal analysis of landuse and landcover, the years 1988, 1998, 2008 and 2018 were considered. In the most eroded geological units, flatter topographies were formed and, in the most resistant structures, reliefs with greater slope. These conditions influenced the dynamics of landuse, especially agriculture, activity that presented the greatest growth in the period, present in landscape units with flatter soils, such as Oxisols. Pasture is the activity that occupies the largest areas throughout the analyzed period, being present in all units, but showing reduction in occupied areas, being then replaced by mechanized agriculture. Cerrado (Brazilian Savana) coverage has not shown significant reduction in the thirty years, since in the first mapping the anthropized areas already represented 77% of the basin area, leaving only fragments of forest formation.