2011
DOI: 10.1590/s1415-43662011000300013
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Abstract: RESUMOMudanças no uso da terra muitas vezes potencializam a erosão hídrica acarretando perda de água, solo, nutriente e matéria orgânica dos sistemas agrícolas, razão por que se estimou a perda de solo na bacia hidrográfica do rio Colônia, na Bahia, nos últimos vinte e sete anos, utilizando-se o software SWAT (Soil and Water Assessment Tool). Para tal, procedeu-se à digitalização de mapas temáticos, interpretação de fotografias aéreas de 1975; classificação supervisionada de imagens de satélites de 2002 e prod… Show more

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Cited by 18 publications
(17 citation statements)
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“…Soil loss was estimated to be a mean of 47 t ha -1 y -1 for the 27 years between 1975-2002(Silva et al, 2011. Measurements of soil loss from forests and protected areas within the same catchment show total losses were 9-20 t ha -1 y -1 .…”
Section: In São Luís City (Maranhão State) Northmentioning
confidence: 99%
“…Soil loss was estimated to be a mean of 47 t ha -1 y -1 for the 27 years between 1975-2002(Silva et al, 2011. Measurements of soil loss from forests and protected areas within the same catchment show total losses were 9-20 t ha -1 y -1 .…”
Section: In São Luís City (Maranhão State) Northmentioning
confidence: 99%
“…Studies that aim to quantify the changes in land use and occupation and their impact on river basins have been carried out in several regions of Brazil (MACHADO et al, 2003;LELIS et al, 2012;SILVA et al, 2011;BLAINSKI et al, 2014) and around the world (PIKOUNIS et al, 2003;BEHERA;PANDA, 2006;BRACMORT et al, 2006;ARABI et al, 2006;GHAFFARI et al, 2010;BAKER;MILLER, 2013;CAN et al, 2015). In these studies, hydrological models have been widely used because they enable the simulation of hypothetical scenarios and the quantification of potential impacts resulting from changes in land use and human occupation on the hydro-sedimentological dynamic.…”
Section: Introductionmentioning
confidence: 99%
“…A significância das matas ciliares (APPs) para a proteção dos cursos d'água contra impactos de aportes de sedimentos, nutrientes e poluentes, é amplamente reconhecida na literatura (Bonnet et al, 2005;Chaves & Santos, 2009;Krupek & Felski, 2006;Silva et al, 2011b). Deve-se considerar, ainda, a proteção complementar proporcionada pelas florestas localizadas em áreas de encostas e interflúvios, podendo-se inferir que os fragmentos de vegetação também possuem fundamental importância ambiental (Bhagwat et al, 2005).…”
Section: Introductionunclassified