estimativa da demanda de água nas áreas irrigadas da bacia do rio paracatu water demand by irrigation in paracatu basin

Clicks: 286
ID: 163724
2007
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Abstract
A irrigação apresentou expressivo crescimento na bacia do Paracatu na década de 1970, sendo que, como conseqüência da grande expansão da agricultura irrigada, sérios conflitos têm surgido em várias partes da bacia. Tendo em vista esses conflitos, o presente trabalho teve como objetivo analisar a demanda de água pela irrigação e sua sazonalidade para as condições climáticas da bacia do Paracatu. A demanda de água pela irrigação foi realizada com base nas condições climáticas e nas áreas irrigadas de cada cultura, sendo essas obtidas com base nos dados do censo agropecuário do Instituto Brasileiro de Geografia e Estatística. A vazão média anual retirada pela irrigação na bacia do Paracatu, em 1996, foi de 0,15 L s-1 ha-1, sendo a vazão média retirada no mês de maior demanda de 0,34 L s-1 ha-1. A quantidade média de água necessária para atender à demanda das culturas irrigadas na bacia do Paracatu foi de 0,35 L s-1 ha-1, sendo o valor correspondente ao mês de maior demanda evapotranspirométrica de 0,50 L s-1 ha-1.
Serious conflicts have occurred among the water sectors in the Paracatu Basin as a consequence of the intense growth of irrigation used in the 70's. The main objective of this paper was to analyze the water demand by irrigation in the Paracatu Basin considering the climatic changes observed during the year. The water demand by irrigation was calculated considering the climatic conditions of the region and the irrigated areas corresponding to each crop, which were obtained from the agricultural census made by the Brazilian Institute of Geography and Statistics. The annual average water withdrawal by irrigation in the Paracatu Basin conditions was 0.15 L s-1 ha-1 while the water withdrawal in the month with the maximum demand was 0.34 L s-1 ha-1 . The water amount necessary to assist the demand of the irrigated crops in the Paracatu Basin was 0.35 L s-1 ha-1 for the average and 0.50 L s-1 ha-1 for the month with the maximum demand.
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rodriguez2007engenhariaestimativa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Renata del G. Rodriguez;Fernando F. Pruski;Luciano F. de Novaes;Márcio M. Ramos;Demetrius D. da Silva;Alessandro de F. Teixeira
Journal bioorganic and medicinal chemistry letters
Year 2007
DOI
10.1590/S0100-69162007000100011
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162007000100011
Keywords
evapotranspiration water withdrawals by irrigationagriculture (general)

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