Resumo

ARTEAGA BARRUETA, Mayra; GARCES, Nelson; GURIDIS, Fernando  e  PINO, José A.. A review about the impact of humic substances on lixiviation of water- soil system (I). Rev Cie Téc Agr [online]. 2014, vol.23, n.3, pp.83-88. ISSN 2071-0054.

The literature review is aimed at the subject of the effect of humic substances application on the physical, physico- chemical and biological soil and leachate. It is aimed at, with regard to the search for integrative indicators that provide early detection of the status of soil-water system, evaluating potential impacts of natural materials with high organic humic nature primarily in this long- term use in production systems, specifically in agroecosystems with ferralitic composition floors. The following aspects, are referred as more sensitive indicators in the soil- water leaching evaluation: the content and characterization of soil organic matter and the dissolved in water and humic fractions, content of microorganisms and their biological activity, electrical conductivity, moisture soil cation and anion content, pH, base exchange capacity, sodium absorption ratio, biochemical oxygen demand, chemical oxygen demand, dissolved oxygen, all which can be integrated in a multidisciplinary procedure.

Palavras-chave : soil; leachate water; soil of organic matter; humic substances; dissolver organic matter.

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