Erosion rates evaluated by the 137Cs technique and direct measurements on long-term runoff plots under tropical conditions

Correchel, Vládia; Bacchi, Osny Oliveira Santos; Maria, Isabella Clerice De; Dechen, Sônia Carmela Falci; Reichardt, Klaus

doi:10.1016/j.still.2005.02.021

Cited by 10 publications

(18 citation statements)

References 15 publications

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“…Andrello and Appoloni (2004) also reported encouraging results when using 137 Cs to estimate rates of soil loss from more clayey subtropical soils in southern Brazil. Other studies reported by Bacchi et al (2003Bacchi et al ( , 2011 and Correchel et al (2006) have further confirmed the validity of the approach. However, there have to date been few studies in South America that have attempted to use 137 Cs measurements to provide information to assist in establishing a catchment sediment budget.…”

Section: Introductionsupporting

confidence: 64%

Establishing a sediment budget for a small agricultural catchment in southern Brazil, to support the development of effective sediment management strategies

Minella

Walling

Merten

2014

Journal of Hydrology

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Section: Introductionsupporting

confidence: 64%

Establishing a sediment budget for a small agricultural catchment in southern Brazil, to support the development of effective sediment management strategies

Minella

Walling

Merten

2014

Journal of Hydrology

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“…Cs reference in the study area is that inventories measured in the Benguê watershed are one order of magnitude lower than those observed in the South and Southeast regions of Brazil (BACCHI et al, 2003;ANDRELLO et al, 2004;CORRECHEL et al, 2006) and two orders of magnitude lower than inventories in Europe (e.g. RODWAY-DYER & WALLING, 2010;PORTO & WALLING, 2012).…”

Section: Resultsmentioning

confidence: 87%

“…The soil types present in the study area with the main physical characteristics are presented in Table 1 ( BRASIL, 1981). (FRANCKE et al, 2008, MÜLLER et al, 2010 is a deterministic, semi-distributed, continuous simulation model of hydrological and sedimentological processes. To represent the spatial variability of the watershed characteristics (such as topography, soil type and vegetation cover) and the influence on runoff generation, the model adopts a hierarchical spatial discretization of the study area into five scale levels ):…”

Section: Figure 1 Location Map Of the Study Areamentioning

confidence: 99%

Uncertainties of the 137Cs technique for validation of soil redistribution modelling in a semiarid meso-scale watershed

Araújo

Andrello

2014

Eng. Agríc.

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Scarcity of long-term series of sediment-related variables has led watershed managers to apply mathematical models to simulate sediment fluxes. Due to the high efforts for installation and maintenance of sedimentological gauges, tracers have been pointed out as an alternative to validate soil redistribution modelling. In this study, the 137 Cs technique was used to assess the WASA-SED model performance at the Benguê watershed (933 km²), in the Brazilian semiarid. Qualitatively, good agreement was found among the 137 Cs technique and the WASA-SED model results. Nonetheless, quantitatively great differences, up to two orders of magnitude, were found between the two methods. Among the uncertainties inherent to the 137 Cs technique, definition of the reference inventory seems to be a major source of imprecision. In addition, estimations of water and sediment fluxes with mathematical models usually also present high uncertainty, contributing to the quantitative differences of the soil redistribution estimates with the two methods.

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“…A partir do ano 2000, esse grupo desenvolveu trabalhos em que incorporou ferramentas de geoprocessamento mescladas a modelos de predição ou estimativa de erosão (USLE, WEEP, 137 Cs) e à discussão de impactos ambientais. Esses trabalhos foram publicados, predominantemente, em periódicos de edição estrangeira (Sparovek et al, 2000Sparovek & Schnug, 2001a,b;Ranieri et al, 2002;Sparovek & De-Maria, 2003;Bacchi et al, 2003;Jong van-Lier et al, 2005;Correchel et al, 2006). As parcerias nesse conjunto incluíram principalmente a USP/Cena, que, por sua vez, fez parcerias com a UEL na publicação de artigos utilizando a técnica de 137 Cs (Schafer et al, 2001a;Andrello et al, 2001Andrello et al, , 2003Guimarães et al, 2003).…”

Section: Resultsunclassified

Bibliometria, história e geografia da pesquisa brasileira em erosão acelerada do solo

Barretto¹,

Barros

Sparovek

2008

Rev. Bras. Ciênc. Solo

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RESUMOHá poucos estudos sobre a história da ciência do solo e, no Brasil, essa matéria ainda não recebeu maior atenção por parte de sua comunidade científica. Este trabalho focaliza a formação histórica da pesquisa brasileira em erosão acelerada do solo a partir de uma análise bibliométrica e geográfica, com base numa ampla compilação de artigos científicos publicados sobre o tema por autores vinculados a instituições brasileiras. A metodologia envolveu o armazenamento, em um banco de dados dimensional, estruturado especificamente para esse objetivo, de informações espaciais e bibliométricas. Indicadores quantitativos foram calculados, e a geografia da pesquisa foi mapeada por meio de consultas SQL e ferramentas de geoprocessamento. Os resultados apontaram para gênese recente da pesquisa brasileira em erosão acelerada do solo e centralização da produção científica e formação de linhas em instituições e autores do Sul e Sudeste do Brasil. Ainda, a análise dos dados temáticos indicou predominância do enfoque da erosão a partir de uma perspectiva agrícola e grande ênfase na pesquisa dos fatores do modelo USLE de estimativa de erosão.Termos de indexação: geoprocessamento, erosão hídrica, banco de dados.(1) Parte da Dissertação de Mestrado apresentada pelo primeiro autor ao Programa

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Erosion rates evaluated by the 137Cs technique and direct measurements on long-term runoff plots under tropical conditions

Cited by 10 publications

References 15 publications

Establishing a sediment budget for a small agricultural catchment in southern Brazil, to support the development of effective sediment management strategies

Establishing a sediment budget for a small agricultural catchment in southern Brazil, to support the development of effective sediment management strategies

Uncertainties of the 137Cs technique for validation of soil redistribution modelling in a semiarid meso-scale watershed

Bibliometria, história e geografia da pesquisa brasileira em erosão acelerada do solo

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