Resumo

PENGUE, Walter A.. Cuestiones económico-ambientales de las transformaciones agrícolas en las pampas. Prob. Des [online]. 2009, vol.40, n.157, pp.137-161. ISSN 0301-7036.

During the last two decades, Argentine agriculture has been transformed, definitively changing its agro-productive profile. The incorporation of direct sowing as a conservationist practice, together with its associated package of glyphosate herbicide and the cultivation of genetically-modified soy are the pillars on which this model is concentrated, intensifying both towards agriculture (agriculturalization) and stock-breeding (feedlot). The environmental problems are reflected in an important loss of nutrients, the rise in exports of virtual water, the appearance of new plagues, illnesses and resistant weeds and the deforestation of several eco-regions. Even areas of high population like the River Luján Basin are beginning to receive these impacts. The study is focused on an analysis of the evolution and situation of soil nutrients, as an indicator of the loss of environmental social and economic quality.

Palavras-chave : extraction of nutrients; Intensive agriculture; genetically-modified soy; glyphosate; feedlots; ecological debt; River Luján.

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