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Historical land-cover/use in different slope and riparian buffer zones in watersheds of the state of São Paulo, Brazil 63
Silva,Alexandre Marco da; Nalon,Marco Aurélio; Kronka,Francisco José do Nascimento; Alvares,Clayton Alcarde; Camargo,Plinio Barbosa de; Martinelli,Luiz Antonio.
Information 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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Land planning; Land management; Geoprocessing; Catchments; Rivers.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400003
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Height-diameter relationships of tropical Atlantic moist forest trees in southeastern Brazil 63
Scaranello,Marcos Augusto da Silva; Alves,Luciana Ferreira; Vieira,Simone Aparecida; Camargo,Plinio Barbosa de; Joly,Carlos Alfredo; Martinelli,Luiz Antônio.
Site-specific height-diameter models may be used to improve biomass estimates for forest inventories where only diameter at breast height (DBH) measurements are available. In this study, we fit height-diameter models for vegetation types of a tropical Atlantic forest using field measurements of height across plots along an altitudinal gradient. To fit height-diameter models, we sampled trees by DBH class and measured tree height within 13 one-hectare permanent plots established at four altitude classes. To select the best model we tested the performance of 11 height-diameter models using the Akaike Information Criterion (AIC). The Weibull and Chapman-Richards height-diameter models performed better than other models, and regional site-specific models...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tree height; Elevation.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100005
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