dc.contributorUniversidade Estadual Paulista (UNESP)
dc.contributorInstituto Florestal
dc.contributorUniversidade de São Paulo (USP)
dc.date.accessioned2022-04-28T18:55:34Z
dc.date.accessioned2022-12-20T00:47:22Z
dc.date.available2022-04-28T18:55:34Z
dc.date.available2022-12-20T00:47:22Z
dc.date.created2022-04-28T18:55:34Z
dc.date.issued2007-07-01
dc.identifierScientia Agricola, v. 64, n. 4, p. 328-335, 2007.
dc.identifier0103-9016
dc.identifier1678-992X
dc.identifierhttp://hdl.handle.net/11449/219421
dc.identifier2-s2.0-34548690343
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5399550
dc.description.abstractInformation about the land cover of a region it is a key information for several purposes. This paper aimed to elaborate land-cover maps using digital satellite images obtained in 1997 from seven watersheds (Piracicaba, Moji-Guaçu, Alto Paranapanema, Turvo Aguapeí, Peixe, and São José dos Dourados) located in the State of São Paulo, southeastern Brazil. Additionaly, this study evaluated the relationship between land-cover and slopes of the terrain of the seven watersheds. A third objective was to estimate the percentage of riparian vegetation currently remaining along the streams in a 30-meter width buffer zone. Three research questions were posed: i) What is the dominant land-cover of these watersheds? ii) Is the riparian vegetation well preserved in the 30m width buffer zone? If not, iii) what is the dominant land-cover in these areas and what would be the cost of recovering such areas? Pasture was the predominant land-cover, occurring in approximately 50% of the entire study area, while sugar cane (Saccharum officinarum) (14%) constituted the second most frequent land-cover. Approximately 50% of the area of the seven basins is considered flat (40%) or smoothly rolling (10%). The terrain only becomes hillier in the Piracicaba and Alto Paranapanema basins, where a little less than 50% have slopes higher than 8%. The total riparian buffer strip zone occupied an area equivalent to approximately 6,200 km 2. From this total, only 25% is preserved. Pasture is the main land-cover of the riparian buffer strip zone.
dc.languageeng
dc.relationScientia Agricola
dc.sourceScopus
dc.subjectCatchments
dc.subjectGeoprocessing
dc.subjectLand management
dc.subjectLand planning
dc.subjectRivers
dc.titleHistorical land-cover/use in different slope and riparian buffer zones in watersheds of the State of São Paulo, Brazil
dc.typeArtículos de revistas


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