O AMBIENTE GEOLÓGICO-PEDOLÓGICO DAS PLANÃCIES INUNDÃVEIS DO MARANHÃO E SUA FRAGILIDADE ÀS AÇÕES ANTRÓPICAS

Abstract

O The present study aimed to characterize the physical the lowland, with great economic potential for the state. This approach is based on geological, geomorphological, pedological, hydrological, climate and slope description. All belonging to the microregion of Maranhão Lowlands, which corresponds to north middle region of Maranhão, divided into 21 municipalities, having a significant part of the population of Maranhão. The Maranhão geological formation is structured according to the main, by the Training and Mudslides Itapecuru tidal Marine. The soils in the region are predominantly formed the Plinthosols, Epiaquic Tiomórfico, red-yellow Podzolic, Solonetz Solodizado. As a result two main geomorphological features were presented : the higher areas of marshland, as sublitorânea surface presents training Itapecuru yielding soils of red - yellow podzolic type and lower areas such as floodplains presents alúvio - Pleistocene colluvial as training, yielding soil type Solonetz – Solodizadosn.

 

 

Index Terms - Low lands, Geology, Geomorphology and Pedology.