Balanço de nutrientes e sua inclusão no produto interno bruto do Brasil ajustado pela depreciação do solo agrícola

Abstract

The Brazilian economic growth has raised the discussion about the impact of cropping in agricultural soils. The productive flow could be degrading the stock of soil resources, whichmay lead to reduction in the national natural capita. This study aimed to measure the impactof production on the depletion of Brazilian agricultural land in 2010, answering if economicgrowth is sustained by the nutritive depreciation of agricultural land. The EnvironmentallyAdjusted Social Accounting Matrix was used to estimate the Environmentally Adjusted GrossDomestic Product (EGDP), based on the Integrated Economic and Environmental AccountsSystem of 2012. The Nutrient Balance provided the physical and monetary balances used toadjust the GDP. Since the land is a immobilized capital for cultivation, the maintenance costsare internalized by the rural producers, as a consequence, the EGDP found reveals that theGDP underestimates Brazilian production, since in 2010 there was an increase of R$ 4 millionin the stock of N, P and K in the national agricultural soil. Brazilian economic growth, therefore, does not compromise soil fertility.