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	Provedor de dados Anais da ABC (AABC) (3) AGRIAMBI (1) Autor Pires,Luiz F. (4) Reichardt,Klaus (3) Bacchi,Osny O.S. (2) Dias,Nivea M.P. (2) Auler,André C. (1) Bacchi,Osny O. Santos (1) Cooper,Miguel (1) Correchel,Vladia (1) Cássaro,Fabio A.M. (1) Filippe,Joseline (1) Pineda,Maria C. (1) Villanueva,Felipe C.A. (1) Mais... Palavra-chave Soil porosity (2) Soil structure (2) Analytical methods (1) C3 and C4 plants (1) Carbon (1) Compaction (1) Conventional tillage (1) Erosion (1) Micromorphology (1) No-tillage (1) Soil bulk density (1) Soil physics (1) Soil water content (1) Sugarcane (1) Wetting-drying cycles (1) Δ13C (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2017 (1) 2011 (1) 2009 (2) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Chemical migration during soil water retention curve evaluation Anais da ABC (AABC) Pires,Luiz F.; Villanueva,Felipe C.A.; Dias,Nivea M.P.; Bacchi,Osny O. Santos; Reichardt,Klaus. Wetting and drying (W-D) cycles can induce important elemental migrations in soils. The main purpose of this work was to study the possible existence of soil chemical elemental migrations in samples submitted to repeated W-D cycles during evaluations of soil water retention curve (SWRC). The experimental measurements were carried out by Atomic Absorption Spectrometry (AAS) for Ca2+, Mg2+ and K+ on samples of three different Brazilian tropical soils (Geric Ferralsol, Eutric Nitosol and Rhodic Ferralsol). Results demonstrate an increase in the electrical conductivity of the water extracted from the samples and significant losses of Ca2+, Mg2+ and K+ during the applications of up to nine W-D cycles. It was also observed differences in SWRC for all soils when... Tipo: Info:eu-repo/semantics/article Palavras-chave: Analytical methods; Soil structure; Wetting-drying cycles; Soil physics. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300028 Influence of physical attributes and pedotransfer function for predicting water retention in management systems AGRIAMBI Auler,André C.; Pires,Luiz F.; Pineda,Maria C.. ABSTRACT The aims of this study were to evaluate the effects of the soil structural physical attributes on the water retention and to develop pedotransfer functions (PTFs) for the estimation of the soil water content (θ) at different matric potentials of a Dystrophic Red Latosol (Hapludox) under conventional tillage (CT) and no-tillage (NT) soil management systems. The effects of long-term CT and NT (over 25 years) management on the soil bulk density (BD), total porosity (TP), macroporosity (Ma), microporosity (Mi) and water retention were investigated. The PTFs were developed to predict θ and used to evaluate the soil water retention curve only for the NT system. The NT system was characterized by smaller values of the soil BD and higher values of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: No-tillage; Conventional tillage; Soil porosity. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001100746 Pore system changes of damaged Brazilian oxisols and nitosols induced by wet-dry cycles as seen in 2-D micromorphologic image analysis Anais da ABC (AABC) Pires,Luiz F.; Reichardt,Klaus; Cooper,Miguel; Cássaro,Fabio A.M.; Dias,Nivea M.P.; Bacchi,Osny O.S.. Soil pore structure characterization using 2-D image analysis constitutes a simple method to obtain essential information related to soil porosity and pore size distribution (PSD). Such information is important to infer on soil quality, which is related to soil structure and transport processes inside the soil. Most of the time soils are submitted to wetting and drying cycles (W-D), which can cause important changes in soils with damaged structures. This report uses 2-D image analysis to evaluate possible modifications induced by W-D cycles on the structure of damaged soil samples. Samples of three tropical soils (Geric Ferralsol, GF; Eutric Nitosol, EN; and Rhodic Ferralsol, RF) were submitted to three treatments: 0WD, the control treatment in which... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil bulk density; Soil water content; Soil porosity; Micromorphology; Soil structure; Compaction. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000100016 Riparian forest potential to retain sediment and carbon evaluated by the 137Cs fallout and carbon isotopic ratio techniques Anais da ABC (AABC) Pires,Luiz F.; Bacchi,Osny O.S.; Correchel,Vladia; Reichardt,Klaus; Filippe,Joseline. Riparian forests can provide an important service for aquatic ecosystems by sequestering hillslopederived sediments. However, the width of a riparian buffer zone required to filter sediments is not yet wellunderstood. Here are used two complementary tracers to measure sediment retention. The 137Cs technique and the soil carbon isotopic ratios (δ13C) are utilized to investigate sediment deposition and erosion rates on a slope transect cultivated with sugarcane followed by a secondary riparian forest zone in Iracemápolis, State of São Paulo, Brazil. The 137Cs technique and the δ13C analysis showed that the width of a riparian vegetation in accordance to a Brazilian Environmental Law (Nº4.771/65) was not sufficient in trapping sediments coming from... Tipo: Info:eu-repo/semantics/article Palavras-chave: Erosion; Δ13C; Sugarcane; C3 and C4 plants; Carbon. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200013 Registros recuperados: 4 Primeira ... 1 ... Última

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