A influência de eventos hidrológicos extremos sobre a diversidade florística em quintais agroflorestais: estudo de caso na Terra Nova - Careiro da Várzea-AM

Abstract

The riverside communities of the Amazon floodplains are increasingly vulnerable, due to high variations in river levels, frequency and intensity of events hydrological considered extremes. Among traditional land use systems, the Agroforestry backyards are seen as environments that ensure, in addition to the conservation of the agrobiodiversity, food produced for own consumption and income generation. This one work aimed to understand the relationship of extreme hydrological events with the decrease in floristic diversity in the District of Terra Nova, in the municipality of Careiro da Várzea, in Amazonas, from a case study, showing an analysis of floodplain environments in two riverside communities. Methodological Strategies involved quantitative and qualitative instruments with the analysis of interviews forms and inventories applied to heads of households for each yard surveyed. You results show that large floods influence the population's livelihoods. riverside in terms of the means of production and income from backyards, in the form of mortality of established arboreal individuals. Nature has manifested itself in such a form as a result of these events that the residents of this district came to realize the changes that are happening in terms of fruit tree mortality. With the collaboration of residents and the carrying out of floristic inventories and mental maps in the communities it was possible to identify mango (Mangifera indica) and coconut (Cocos nucifera) the most frequent species in agroforestry plantations and of greatest importance socioeconomic conditions for populations, are among those who have suffered the most mortality during the floods that have occurred since 2009. extreme hydrological events contribute to the reduction of floristic diversity by through the death of fruit trees in the communities' agroforestry yards riverside studied.