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Type: Artigo de periódico
Title: Heavy Metals And Micronutrients In Soils Under Dairy Grazing Right On Top Of The River Paranaíba Basin In The State Of Goiás, Brazil [metais Poluentes E Micronutrienes Em Solos, Sob Pecuária Leiteira Em Sistema De Pastejo Direto, No Alto Da Bacia Do Rio Paranaíba, Goiás, Brasil]
Author: Teixeira G.C.S.
De-Campos A.B.
Rocha C.
Alves S.M.F.
Goncalves A.C.
Abstract: In Brazil, the agricultural activity is among the most competitive sectors of national economy, in which milk production has a very significant contribution. Concern about environmental contamination by this activity is related to the fact that dairy cattle manure heavy metals present in the constitution; the creation of such animals in the grazing system directly questions the possibility of any contamination by these metals in the watery, area where these animals congregate at certain times of day for drinking water and where they defecate. This study aimed to evaluate the content of copper, iron, manganese, zinc, cadmium, lead and chromium in watery areas and in conservation areas (control) of 28 properties, grouped into six “otto-basins” forming the upper basin of the Paranaíba River in the State of Goiás. The simple soil samples were collected at three depths (0-10, 10-20 and 20-30 cm) obtained from such a composite sample for each depth in the areas watered and preserved. The analysis of PCA metals pollutants in soils watery areas analyzed did not indicate the occurrence of contamination in these environments when compared to the preserved area. Observed random distribution of average levels of metals in the three studied depths in all treatments, which complicates the definition of the potential for soil contamination by feces of dairy farming originated in watery areas, under rotational grazing.
Editor: Universidade Federal de Uberlandia
Rights: fechado
Identifier DOI: 
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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