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	Provedor de dados Rev. Ciênc. Agron. (2) Autor Andrade,Eunice Maia de (2) Santos,Júlio César Neves dos (2) Araújo Neto,José Ribeiro de (1) Meireles,Ana Célia Maia (1) Mendonça,Luiz Alberto Ribeiro (1) Palácio,Helba Araújo Queiroz (1) Palácio,Helba Araújo de Queiroz (1) Rodrigues,Joseilson Oliveira (1) Mais... Palavra-chave Caatinga (1) Ephemeral creek (1) Reservoirs (1) Soil degradation (1) Soil erosion (1) Water quality (1) Water resources (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2014 (1) 2013 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sediment loss in semiarid small watershed due to the land use Rev. Ciênc. Agron. Rodrigues,Joseilson Oliveira; Andrade,Eunice Maia de; Palácio,Helba Araújo Queiroz; Mendonça,Luiz Alberto Ribeiro; Santos,Júlio César Neves dos. The aim of this study was to evaluate and compare the sedimentological behavior in two small rural watersheds in the semiarid Northeast of Brazil, examining the influence of human activity on the sediment yields. The studied area is sited in the Alto Jaguaribe basin, more precisely in the Iguatu County, Ceará State. The experimental area was composed of two small watersheds denominated B1 and B2. In watershed B1 a treatment (thinning) was applied, eliminating the plant species with diameters lower than 10 cm. The results showed that the Caatinga clearing practice did have an influence in changing the sediment yield during the first events. It was also found that the magnitude of previous events contributed to an increase in the sediment yields by the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Caatinga; Soil degradation; Soil erosion; Ephemeral creek. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000300010 Land use and trophic state dynamics in a tropical semi-arid reservoir Rev. Ciênc. Agron. Santos,Júlio César Neves dos; Andrade,Eunice Maia de; Araújo Neto,José Ribeiro de; Meireles,Ana Célia Maia; Palácio,Helba Araújo de Queiroz. Water body eutrophication process has been a serious problem around the world, especially in semiarid and arid region where main approach to storage water is reservoir. The aim of this work was to investigate the spatial and seasonal variability in water quality of a reservoir in a semi-arid tropical region with regards to its trophic state, and to identify the sources of nutrient input to the reservoir. Essa pesquisa foi realizada no reservatório Orós, segundo maior do estado do Ceará-Brasil. This research was developed in the Orós reservoir, the second one most important reservoir in Ceará State, Brazil. Samples were collected bimonthly during the period April 2008 to April 2010, from sex sampling points representing the outlet of tributaries, and one... Tipo: Info:eu-repo/semantics/article Palavras-chave: Water resources; Reservoirs; Water quality. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100005 Registros recuperados: 2 Primeira ... 1 ... Última

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