As transformações sazonais da paisagem na Ilha do Careiro e suas consequências socioambientais

Abstract

The monitoring of soil cover changes allows the identification of the dynamics of the phenomena occurring in the landscape and their possible socio environmental implications for resident human populations. The present work had the objectives: (1) Quantify changes in the landscape of a floodplain area of the Amazon River, Careiro da Várzea Island, in the transition between high water and low water seasons; (2) Analyze the consequences of this seasonal dynamics in the ways of life of its inhabitants. For calculations of variations in soil cover, we used two Landsat images, TM and OLI sensors representing the seasons. The soil cover classes were exposed soil, water, wetlands and forest. The results presented great differences in the values of the classes of soil coverage between the seasons. Between the high water season and the beginning of the low water season there is a 6% reduction in the water mirror area of the lakes. The Amazonian rural communities developed adaptive strategies for the different seasonal periods, intensifying the productive activities during the terrestrial phase of the ecosystem, which allows their adaptation to the amphibian character of the landscapes of the floodplain regions of central Amazonia. Keywords: Amazonian floodplain. Riverine communities. Adaptability. Remote sensing