Estudo do Comportamento do Fluxo de Água Na Zona Saturada da Reserva Biológica do Cuieiras, Amazônia Central

Abstract

Information on the behavior of underground flow from high to low altitudes in the Amazon region, in natural environments, as to velocity and base flow, is still incipient and does not reflect its current relevance related to water dynamics at different topographic levels. The behavior of water in the saturated soil zone, the groundwater flow from estimates of hydraulic conductivity in slope and shallow areas, under seasonal and interannual scale from 2003 to 2017, in the Cuieiras Biological Reserve in the Central Amazon to the north was analyzed. From the city of Manaus. Through piezometers distributed on site, the average values of hydraulic conductivity were estimated. High heterogeneity was observed with a minimum and maximum variation of 30mm / h and 511mm / h; higher flow velocity in locations with high conductivity and lower velocity in areas with low saturated soil hydraulic conductivity. At the level the level oscillated at a frequency of 0.10m to 0.60m; on the slope from 3m to 5m and on the plateau from 23m to 42m deep. In the basal flow, the shoal was slower and varied from 1.00 ± 4.20E-6m3/s. It is considered important that this result be explored to characterize complementary studies involving the transferability, transport of solutes, and underground and free aquifer recharge according to the topographic sequences of the region.