Classification of pasture degradation levels in terms of hydric erosion risk in Quartzipsamments areas at Alto Taquari watershed (MS/MT, Brazil).

GALDINO, S.; MARINHO, M. de A.; SILVA, J. dos S. V. da

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	GALDINO, S.
dc.contributor.author	MARINHO, M. de A.
dc.contributor.author	SILVA, J. dos S. V. da
dc.date.accessioned	2017-12-19T23:19:40Z	-
dc.date.available	2017-12-19T23:19:40Z	-
dc.date.created	2013-09-26
dc.date.issued	2013
dc.identifier.citation	Geografia, Rio Claro, v. 38, p. 95-107, ago. 2013.
dc.identifier.uri	http://www.alice.cnptia.embrapa.br/alice/handle/doc/967218	-
dc.description	Pasture degradation is currently one of Brazil's agriculture main problems. Pasture areas grown on Quartzipsamments (RQ) at the Alto Taquari watershed (BAT) are important sources of sediments which intensify the Taquari river´s situation in Pantanal. The objective of this work was to assess the use of the Linear Spectral Mixture Model (LSMM) in the mapping and characterization of the current degradation level of pastures planted on RQ at BAT in terms of erosion risk. Using Landsat 5 satellite images of 2010 and employing the LSMM, we generated an image for exposed soil (ES), which was used along with field work to define three pasture degradation levels: low degradation level or not degraded (ES < 20%), medium degradation level (20% < ED > 45%) and high degradation level (ES > 45%). In 2010, the pastures grown on RQ at BAT encompassed a total of 851,204 ha, which corresponded to 66.3% of this soil class and to 30.1% of the watershed surface. The largest amount of pasture areas, around 57%, showed medium degradation level, about 9% showed high degradation level, and the remainder, around 34%, were pastures with low degradation level or not degraded.
dc.language.iso	eng	eng
dc.rights	openAccess	eng
dc.subject	Geotecnologia
dc.subject	Modelo Linear de Mistura Espectral
dc.subject	Bacia hidrográfica do alto Paraguai
dc.subject	Recuperação de pastagens degradadas
dc.subject	Degradação de pastagens
dc.subject	Geotechnology
dc.subject	Linear Spectral Mixture Model
dc.subject	Alto Paraguai watershed
dc.title	Classification of pasture degradation levels in terms of hydric erosion risk in Quartzipsamments areas at Alto Taquari watershed (MS/MT, Brazil).
dc.type	Artigo de periódico
dc.date.updated	2017-12-19T23:19:40Z	pt_BR
dc.subject.thesagro	Cerrado	pt_BR
dc.description.notes	Número Especial.
riaa.ainfo.id	967218
riaa.ainfo.lastupdate	2017-12-19
dc.contributor.institution	SÉRGIO GALDINO, CPAP; MARA DE ANDRADE MARINHO, Unicamp; JOÁO DOS SANTOS VILA DA SILVA, CNPTIA.
Aparece en las colecciones:	Artigo em periódico indexado (CNPTIA)

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