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	Provedor de dados Rev. Ciênc. Agron. (2) Autor Andrade,Eunice Maia de (2) Guerreiro,Maria João Simas (2) Palácio,Helba Araújo de Queiroz (2) Brasil,José Bandeira (1) Medeiros,Pedro Henrique Augusto (1) Rodrigues,Rafael do Nascimento (1) Santos,Julio Cesar Neves dos (1) Mais... Palavra-chave Eco-hydrological processes (1) Hydrological and sedimentological behaviour (1) Rainfall patterns (1) Scale effect (1) Seasonally Dry Tropical Forest (1) Soil loss (1) Surface runoff (1) Thinning (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2017 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Land use impact on soil erosion at different scales in the Brazilian semi-arid Rev. Ciênc. Agron. Santos,Julio Cesar Neves dos; Andrade,Eunice Maia de; Medeiros,Pedro Henrique Augusto; Guerreiro,Maria João Simas; Palácio,Helba Araújo de Queiroz. ABSTRACT Erosion and sediment transport processes are strongly dependent on the spatial scale and land use. The objective of this study is to analyse the effects of slash and burn of vegetation followed by grass cultivation for grazing, on the hydrological and sedimentological behaviour at different spatial scales in a semiarid region in Brazil. Rainfall, runoff and soil loss were measured during three years (total of 116 rainfall-runoff events) at three spatial scales: 1 m2 and 20 m2 plots and 2.8 ha watershed. During the first year (2009) the native dry tropical forest/Caatinga vegetation was maintained, whereas on the following years (2010 and 2011) the original vegetation was cleared using slash and burn techniques to grow pasture (Andropogon gayanus... Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydrological and sedimentological behaviour; Soil loss; Scale effect. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000200251 Hydrological behaviour of vertisols in the Brazilian semi-arid region: the importance of rainfall of less than 30 mm Rev. Ciênc. Agron. Andrade,Eunice Maia de; Rodrigues,Rafael do Nascimento; Palácio,Helba Araújo de Queiroz; Brasil,José Bandeira; Guerreiro,Maria João Simas. ABSTRACT The greater probability of small rainfall events occurring in semi-arid regions, and the little understanding of their role in hydrological processes, has led to this investigation of surface runoff generated during these events in two adjacent micro basins in the Brazilian semi-arid region. The types of plant cover to be investigated were the Phytogeographical Caatinga Domain under regeneration for 35 years (CPDReg) and thinned CPD (CPDThin), which consisted of the elimination of trees with a diameter of <10 cm. Two historical series were considered, one of 40 years (1974-2013) with 2,259 events and the other consisting of 247 rainfall events of <30 mm from 2009 to 2013. The cumulative frequency distribution showed that the series of 247... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eco-hydrological processes; Seasonally Dry Tropical Forest; Thinning; Surface runoff; Rainfall patterns. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000200408 Registros recuperados: 2 Primeira ... 1 ... Última

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