Uso de indicadores hidrológicos para classificação de trechos de estradas florestais quanto ao escoamento superficial

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dc.contributor.authorDe Barros Ferraz, Silvio Frosini [UNESP]
dc.contributor.authorMarson, Júlio César
dc.contributor.authorFontana, Carolina Rodrigues
dc.contributor.authorDe Paula Lima, Walter
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:22:34Z
dc.date.available2014-05-27T11:22:34Z
dc.date.issued2007-09-01
dc.description.abstractForest roads are frequently pointed as source of environmental problems related to erosion and they also influence harvest cost due to maintenance operations. Roads not well designed are sources of hydrological problems on catchments and the current attention to sustainability of forest exploration projects point out to the need of diagnostics tools for guiding the redesign of the road system. At this study, runoff hydrological indicators for forest road segments were assessed in order to identify critical points of erosion and water concentration on soils. A road network of a forest production area was divided into 252 road segments that were used as observations of four variables: mean terrain slope, main segment slope, LS factor and topographic index. The data analysis was based on descriptive statistics for outliers' identification, principal component analysis and for variability study between variables and between observations, and cluster analysis for similar segments groups' identification. The results allowed classifying roads segments into five mains road types: road on the ridge, on the valley, on the slopes, on the slopes but in a contour line and on the steepest slope. The indicators were able to highlight the most critical segments that differ of others and are potential sources of erosion and water accumulation problems on forest roads. The principal component analysis showed two main variability sources related to terrain topographic characteristics and also road design, showing that indicators represent well those elements. The methodology seems to be appropriated for identification of critical road segments that need to be redesigned and also for road network planning at new forest exploration projects.en
dc.description.affiliationDepartamento de Ecologia Instituto de Biociências Universidade Estadual Paulista, Avenida 24A, 1.51.5, Rio Claro, SP - 13506-900
dc.description.affiliationEscola Superior de Agricultura Luiz de Queiroz Universidade de São Paulo, Caixa Postal. 9, Piracicaba, SP - 13400-970
dc.description.affiliationDepartamento de Ciências Florestais Escola Superior de Agricultura Luiz de Queiroz Universidade de São Paulo, Caixa Postal 9, Piracicaba, SP - 13400-970
dc.description.affiliationUnespDepartamento de Ecologia Instituto de Biociências Universidade Estadual Paulista, Avenida 24A, 1.51.5, Rio Claro, SP - 13506-900
dc.format.extent39-49
dc.identifierhttp://www.ipef.br/publicacoes/scientia/nr75/cap04.pdf
dc.identifier.citationScientia Forestalis/Forest Sciences, n. 75, p. 39-49, 2007.
dc.identifier.file2-s2.0-36749062928.pdf
dc.identifier.issn1413-9324
dc.identifier.scopus2-s2.0-36749062928
dc.identifier.urihttp://hdl.handle.net/11449/69863
dc.identifier.wosWOS:000208714600004
dc.language.isopor
dc.relation.ispartofScientia Forestalis/Forest Sciences
dc.relation.ispartofjcr0.500
dc.relation.ispartofsjr0,495
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectErosion
dc.subjectGeographic information system
dc.subjectHydrological modeling
dc.subjectForest road
dc.subjectHydrological indicators
dc.subjectRoad network
dc.subjectRunoff assessment
dc.subjectGeographic information systems
dc.subjectHydrology
dc.subjectPrincipal component analysis
dc.subjectRoads and streets
dc.subjectForestry
dc.subjectForests
dc.subjectGIS
dc.subjectRoads
dc.titleUso de indicadores hidrológicos para classificação de trechos de estradas florestais quanto ao escoamento superficialpt
dc.title.alternativeUsing hydrological indicators for runoff assessment on forest road segmentsen
dc.typeArtigo
unesp.author.orcid0000-0003-1808-5420[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Ecologia - IBRC