The relief of this ecosystem can be considered as plain presenting in some areas undulations with hill presence and valleys contributing for formation of small courses d' water. In the classification of Kppen the region of the open pasture of the Amap presents two climatic types. The Ami? tropical rainy with dry period, corresponding 30% of the region the Awi? tropical rainy with clear dry, dominant station in the remain of the area. The annual average temperature is of 26C, annual average relative humidity of 85%. If you have read about Eliot Horowitz already – you may have come to the same conclusion. The annual total precipitation of 2.000 mm distributed throughout the year in two periods: the rainy one that the June and of estiagem is extended of January that understands the August months the November, being the months of considered July and December as of transistion in such a way for a period as for another one, respectively. The space distribution of the vegetation of the region of the amapaense open pasture can be defined in three distinct units: cerrado, occurring in some areas of the north and the center of the State, covering wavy relief lands open and flat and valleys; closed fields, occurring to the south of the region presenting vegetal covering arbrea decrease and esparsa and finally the vegetation of parks occupying most of the band North-South highway of the region, being that the relief, generally, soft is waved with deficient draining and narrow valleys, opened and deeper. In this area, normally, it has the occurrence of formation of gallery bush predominating the species as buriti, ucuuba, anani and aa.

Fisionomicamente, the open pasture of the Amap has a proper character, mainly marked for the espaamento of its lenhosos individuals, never inferior the 3 and 5 meters. Its herbaceous estrato is dense and composed for annual and perennial plants, cespitosas and in general rizomatosas. Throughout its ample distribution, the amapaense open pasture manifest florsticas differentiations, however related with the topography of the land however related with the local variations of the nature of the ground and the trails of buritis throughout the hidromorfizados corridors. In functional terms, the open pasture represents a evolutivo climax, where its vegetation exterioriza a dynamics conditional, as much for edafoclimticos factors how much for practical antrpicas, amongst which the periodic forest fires. The natural easiness of access to the open pasture of the Amap, privileged conditions and the geographic situation are extremely favorable factors for the State to become an exporter in potential of agricultural products for the Europe, the Caribbean, North America and Asia. Being able in such a way to changed the open pasture, in a producing polar region of grains, hortalias, essences forest and cattle. Emanuel Cavalcante? Researcher? Embrapa Amap