DETERMINATION OF SOIL ERODIBILITY BY MEANS OF TWO INDIRECT METHODS IN A WATERSHED IN THE SOUTHERN REGION OF THE STATE OF AMAZONAS, BRAZIL

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dc.contributor.authorDuarte, Miqueias Lima [UNESP]
dc.contributor.authorSilva Filho, Eliomar Pereira da
dc.contributor.authorMendes Brito, Wildson Benedito
dc.contributor.authorSilva, Tatiana Acacio da [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Rondonia
dc.contributor.institutionUniv Fed Amazonas
dc.date.accessioned2020-12-10T17:31:36Z
dc.date.available2020-12-10T17:31:36Z
dc.date.issued2020-04-01
dc.description.abstractWater erosion is one of the main problems facing agriculture worldwide. It is responsible for the transport of sediments that compromise the quality and quantity of water in rivers and reservoirs, as well as for the loss of nutrients and soil organic matter, thereby causing direct damage to agricultural production and the environment. This work evaluated the erodibility of soils in the Juma watershed, located in the southern region of the state of Amazonas, through two indirect methods and assessed the soil attributes of the area that most contribute to its erodibility. Eight soil classes were identified, from which representative collections were collected randomly, and soil physical and chemical analyses were performed. Then, multiple regression and spatialization analyses of the data were performed by kriging interpolation using the Geographic Information System (GIS). It was verified that the erodibility indices obtained by both methods were strongly influenced by textural extremes (sand and/or silt); however, the Denardin method presented more adequate results. These results indicate that there is a predominance of moderate soil erodibility in the study area, as well as high and very high erodibility around the main water courses associated with soils of alluvial origin.en
dc.description.affiliationUniv Estadual Paulista, Inst Ciencia & Tecnol, Av Tres Marco 511, BR-18087180 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Rondonia, Dept Geog, Campus BR 364,Km 9,5, BR-76801059 Porto Velho, Rondonia, Brazil
dc.description.affiliationUniv Fed Amazonas, Dept Engn Agr & Solos, Rua Vinte & Nove Agosto 786, BR-69800000 Humaita, Amazonas, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Ciencia & Tecnol, Av Tres Marco 511, BR-18087180 Sao Paulo, Brazil
dc.format.extent329-341
dc.identifierhttp://dx.doi.org/10.20502/rbg.v21i2.1533
dc.identifier.citationRevista Brasileira De Geomorfologia. Uberlandia, Brazil: Uniao Geomorfologia Brasileira, v. 21, n. 2, p. 329-341, 2020.
dc.identifier.doi10.20502/rbg.v21i2.1533
dc.identifier.issn1519-1540
dc.identifier.urihttp://hdl.handle.net/11449/195354
dc.identifier.wosWOS:000530904800007
dc.language.isopor
dc.publisherUniao Geomorfologia Brasileira
dc.relation.ispartofRevista Brasileira De Geomorfologia
dc.sourceWeb of Science
dc.subjectSoil Loss
dc.subjectSoil Conservation
dc.subjectMapping
dc.titleDETERMINATION OF SOIL ERODIBILITY BY MEANS OF TWO INDIRECT METHODS IN A WATERSHED IN THE SOUTHERN REGION OF THE STATE OF AMAZONAS, BRAZILen
dc.typeArtigo
dcterms.rightsHolderUniao Geomorfologia Brasileira
unesp.author.orcid0000-0001-8232-4655[1]

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