Pedological characterization and land use and occupation: influences on water quality in a watershed located in the zona da mata (MG)

Engenharia Agrícola

Luana C. R. Andrade¹  Eduardo A. G. Marques¹  Thaís De C. Felicori¹ 

[1] ,Universidade Federal de Viçosa Departamento de Engenharia Civil

关键词: soil characteristics;    water quality;    rural watershed;    características do solo;    qualidade da água;    bacia hidrográfica rural;   

DOI  :  10.1590/S0100-69162013000400021

来源: SciELO

【 摘 要 】

In order to verify the influence of class and use and occupation of land on water quality, it was performed the characterization and analyzes of land use and monitoring of seven springs inserted in a watershed located in the rural of Viçosa city - Minas Gerais (MG) state, in Brazil. Through soil analyzes, carried out in five different profiles, it was possible to identify three distinct pedological classes: Argisol, Cambisol and Latosol. Furthermore, the concentrations of Fe, Mn, Cu, Zn, Cr, Cd, Pb and Ni were identified in each of the horizons in the considered profiles. Water samples were collected and analyzed monthly, over eight months, twenty two parameters of water quality. Comparing the results of each survey, it was possible to identify a relation between water quality and land use in the round of the springs, considering color, BOD, DO, E. coli and Mn as the most affected parameters, influenced mainly by soil characteristics and the presence of a large percentage of pasture in the study area.

【 授权许可】

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