Solos da Amazônia: problemas e perspectivas para o seu uso adequado (com ênfase ao Estado do Pará)

Abstract

Valuation of the use Natural Resources of the AmazSnia, and to give suggestions about reasonable ocupations. In this study the soils are classified into two categories: a) Dystrophic Soils - Yellow Latosol, Red Yellow Latosol, Red Latosol, Red Yellow Podzolic Soils, Concrecionary Lateritic Soils , Ground Water Laterite, Hydromorphic Podsol, Sand and Dystrophic Gleized Hidromorphic Soils; b) Eutrophic Soils - Dusk Red Latosol; Terra Roxa Estruturada, Eutrophic Red Yellow Podzolic Soils, Eutrophic Cambisol and Eutrophic Gleized Hidromorphic Soils. These soils are disposed in High and Médium Plateau. Planed Surfaces, Depressions, Fluvial Flood Plains and Fluvio-Marines Floods Plains,and the great number are covered by Ombrophilous Closed Forest and Woodland Forest, that provide a voluminous deal of comercisble wood about 760 millions of m3 designed for foreign market and 1.300 millions of for internal market. Data of soils, relief and forest were used to sugqest a better employment of Natural Resources, as to select six main areas for their more appropriate utilizations. The selection of the Edapho-Climatic Zones was made with the aid of the priority climatic map based on climatic point of view. Discussions were made about activities and cultures adapted to each area conditions.