Transformaciones agroproductivas e indicadores de sustentabilidad en lacuenca del río Quequén Grande (provincia de Buenos Aires, Argentina), durante los períodos 1988-1998 y 1998-2008

Abstract

The Pampas region has strong comparative advantage in agricultural production. Current production models include direct seeding increased use of agrochemicals and the advancement of agriculture has led to a strong fragmentation of natural grasslands. The aim of this study is to analyze the changes in agroproduction Basin of the River Quequén Grande (located in the Pampa Austral) and its consequences for the periods 1988-1998 and 1998-2008. The methodology used was based on the supervised classification of satellite imagery for selected years. The statistics obtained were correlated with estimates of the risk indicators of intervention of the habitat and pesticide pollution. Agriculturization process manifested with different intensity in the geomorphological environments, the unit of hills and mountain range was most affected in both periods, presenting high values of environmental risk.