Dinâmica do nitrato e cloreto no solo e a qualidade das águas subterrâneas do distrito de irrigação Baixo Acaraú, CE Dynamics of nitrate and chloride in the soil and groundwater quality of the irrigation district Baixo Acaraú, CE

作者： Lindbergue Araújo Crisóstomo , Eunice Maia de Andrade , Ana Célia , Artigo Científico , Maia Meireles

DOI:

关键词: Groundwater 、 Environmental science 、 Irrigation 、 Irrigation district 、 Water content 、 Water table 、 Soil horizon 、 Nitrate 、 Moisture 、 Hydrology

摘要: This work was developed aiming to investigate how water in irrigation systems alters the dynamics of chloride and nitrate soil profile its impacts on ground district Baixo Acarau - DIBAU, Ceara, Brazil. In investigating ions moisture profile, samples were collected every 50 cm depth from surface area capillary fringe watertable. Samples during rainy season (May/11) dry (Sep/11) both areas: A1 A2. To identify concentration table, monitoring done monthly for 12 months (to Aug/10 Jul/11) two wells inserted irrigated fields uncultivated areas. assess whether variations gravimetric content Cl NO 3 showed significant differences between periods, we used Student t test at 5%. The (A1), 62% higher than those recorded (A2) seasons. increase is worrying as these certain year (Nov/10) (Mar/11 June/11) significantly exceeded maximum acceptable human consumption by Ordinance No 518/2004 Ministry Health Resolution 357/05 CONAMA.

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Dinâmica do nitrato e cloreto no solo e a qualidade das águas subterrâneas do distrito de irrigação Baixo Acaraú, CE Dynamics of nitrate and chloride in the soil and groundwater quality of the irrigation district Baixo Acaraú, CE

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Dinâmica do nitrato e cloreto no solo e a qualidade das águas subterrâneas do distrito de irrigação Baixo Acaraú, CE Dynamics of nitrate and chloride in the soil and groundwater quality of the irrigation district Baixo Acaraú, CE

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