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      Conceitos sobre solos coesos e hardsetting Translated title: Concepts on "coesos" and hardsetting soils

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          Abstract

          Diferenças marcantes entre os graus de consistência do solo seco e úmido foram incorporadas ao sistema brasileiro de classificação de solos por meio da utilização do termo "coeso", o qual caracteriza solos que, quando secos, apresentam um incremento acentuado de resistência à penetração, e uma sensível redução dessa resistência, quando úmidos. Esse comportamento foi observado, há muito tempo, em solos da Austrália, tendo sido originalmente incorporado ao sistema australiano de classificação como "hardsetting". O objetivo deste trabalho foi mostrar as similaridades entre solos coesos e "hardsetting", com o entendimento de que essa conexão será útil nas pesquisas com solos coesos no Brasil.

          Translated abstract

          Remarkable differences on soil consistence between dry and moist soils were incorporated to the Brazilian soil classification system identifying this behavior as "coeso" which characterizes soils that have an accentuated increment of resistance when dry and become soft when moist. This behavior has been recognized for longer time in Australia and was incorporated to the Australian soil classification system using the term hardsetting. The objective of this paper was to demonstrate the similarities between hardsetting and "coeso" soils with the understanding that this connection may help the research on "coeso" soils of Brazil.

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          Most cited references46

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          Sistema brasileiro de classificação de Solos

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            Cone Index of Loamy Sands as Influenced by Pore Size Distribution and Effective Stress1

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              Two mechanisms for age-hardening of soil

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                Author and article information

                Journal
                sa
                Scientia Agricola
                Sci. agric. (Piracicaba, Braz.)
                São Paulo - Escola Superior de Agricultura "Luiz de Queiroz" (Piracicaba, SP, Brazil )
                1678-992X
                September 2002
                : 59
                : 3
                : 613-620
                Affiliations
                [02] Piracicaba SP orgnameESALQ orgdiv1USP orgdiv2Depto. de Solos e Nutrição de Plantas
                [01] PR orgnameUNIOESTE orgdiv1Depto. de Agronomia
                Article
                S0103-90162002000300030 S0103-9016(02)05900330
                7cc076df-f2f5-4e8a-9cec-eacfaccf4000

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 02 October 2001
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 64, Pages: 8
                Product

                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Revisão

                Low Coastal Plateau,horizontes endurecidos,Tabuleiros Costeiros,atributos de solos,soil consistence,soil strength,hard horizons,soils atributes,consistência do solo,resistência do solo

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