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	Provedor de dados Rev. Bras. Ciênc. Solo (7) Autor Bohnen,H. (7) Silva,L. S. (3) Abichequer,A. D. (2) Anghinoni,I. (1) Meurer,E. J. (1) Nava,G. (1) Sousa,R. O. (1) Mais... Palavra-chave Eficiência (2) Percolação (2) Absorção (1) Adsorção de fósforo (1) Alterações químicas (1) Aproveitamento de nutrientes (1) Aveia preta (1) Casa de vegetação (1) Cascas (1) Colmo + folhas (1) Decomposição (1) Fósforo (1) Genótipos (1) Grãos (1) Incubação (1) Minerais (1) Nutrição vegetal (1) Oriza sativa (1) Oxirredução (1) Raízes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (7) Ano 2003 (1) 2002 (2) 2001 (3) 1998 (1) País Brazil (7) Idioma Português (7)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 27 Primeira ... 1 2 ... Última Pedotransfer functions to estimate proctor test parameters under different tillage systems Rev. Bras. Ciênc. Solo Álvarez,Carina Rosa; Micucci,Federico Guillermo; Bustingorri,Carolina; Taboada,Miguel Angel. The Proctor test is time-consuming and requires sampling of several kilograms of soil. Proctor test parameters were predicted in Mollisols, Entisols and Vertisols of the Pampean region of Argentina under different management systems. They were estimated from a minimum number of readily available soil properties (soil texture, total organic C) and management (training data set; n = 73). The results were used to generate a soil compaction susceptibility model, which was subsequently validated using a second group of independent data (test data set; n = 24). Soil maximum bulk density was estimated as follows: Maximum bulk density (Mg m-3) = 1.4756 - 0.00599 total organic C (g kg-1) + 0.0000275 sand (g kg-1) + 0.0539 management. Management was equal to 0 for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil organic carbon; Soil compaction; Soil texture. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000600002 USLE/RUSLE K-factors allocated through a linear mixed model for Uruguayan soils Ciencia e Investigación Agraria Beretta-Blanco,Andrés; Carrasco-Letelier,Leonidas. Soil erosion by rainfall is a process that demands management, both for the prevention of excessive soil erosion and for the protection of the quality of freshwater bodies. Erosion coefficients (K-factors) of the universal soil loss equation (USLE)/revised USLE (RUSLE) model were assigned to 99 mapped Uruguayan soil types at 1:1,000,000 scale. This work developed a linear mixed model (LMM) with 79 soils with assigned K-factors, in which the following variables were considered: soil taxonomy, chemical composition, and parent material. The developed LMM had an R²=0.86, in which the soil taxonomy (p<0.0001), parent material (p=0.0174), clay (p=0.0005) and sand (p=0.017) contents had significant statistical effects. The prediction capacity of this model was... Tipo: Journal article Palavras-chave: Soil classification; Parent material; Soil texture; Soil chemistry. Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000100011 Influence of soil physical characteristics on growth of Pinus taeda growth PFB - Pesquisa Florestal Brasileira Bognola, Itamar Antonio; Dedecek, Renato Antonio; Lavoranti, Osmir José; Higa, Antonio Rioyei. Foi estudado o rendimento de Pinus taeda L. em função de propriedades físico-hídricas do solo. O trabalho foi baseado em um mapeamento detalhado de solos, na escala 1:10.000, em duas áreas da empresa Battistella Florestal, localizadas nos estados de Santa Catarina e Paraná. Os dados dendrométricos utilizados foram coletados em parcelas de inventário florestal contínuo (PIFCs), em um povoamento com área de 2.252 ha. Foram selecionados 28 PIFC’s com árvores de crescimentos diferentes, separadas em dois grupos com idades de 12 e 13/14 anos. Os sítios com árvores de maior idade e de solos com maior teor de argila, em média, apresentaram maior incremento médio anual das árvores. Houve correlações positivas entre o volume de madeira das árvores, a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Macroporosidade; Porosidade de aeração; Textura do solo; Volume de madeira. Soil macroporosity; Aeration porosity; Soil texture; Wood volume.. Ano: 2010 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/90 Growth and physiology of maize under water salinity and nitrogen fertilization in two soils AGRIAMBI Braz,Régis dos S.; Lacerda,Claudivan F. de; Assis Júnior,Raimundo N. de; Ferreira,Jorge F. da S.; Oliveira,Adriana C. de; Ribeiro,Aureliano de A.. ABSTRACT The nitrogen fertilization, in general, minimizes the effects of salinity on plants, but the mitigating action depends on plant species, cultivar, soil texture and plant age, among other factors. The objective of this study was to evaluate the effects of irrigation water salinity and nitrogen fertilization on maize physiology and growth (Zea mays) in soils with different textures. The experiment was carried out in a greenhouse in Fortaleza City, CE, Brazil, in PVC soil columns (100 x 20 cm). The design was completely randomized using the factorial 2 x 2 x 4, referring to two soils, an Ultisol and a Quartzipsamment, nitrogen doses of 105 and 210 kg ha-1, under irrigation with saline water of 0.5, 2.0, 4.0 and 6.0 dS m-1, with four repetitions. With... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Leaf gas exchange; Soil texture. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001200907 The effect of different soil properties on arbuscular mycorrhizal colonization of peanuts, sorghum and maize Acta Botanica Carrenho,Rosilaine; Trufem,Sandra Farto Botelho; Bononi,Vera Lúcia Ramos; Silva,Eraldo Schunk. Arbuscular mycorrhizal fungi (AMF) are important for plant growth since they increase mineral influx. However, symbiosis efficiency is affected by many environmental factors. This study evaluated the effects of different treatments (+/- phosphorus; +/- liming; +/- organic matter; field, sandy or clayey soil textures) on root colonization (RC) of peanuts, sorghum and maize. The combination of these resulted in seventy-two treatments. The 2×2×2×3×3 factorial experiment was laid out in a randomized design. All data were subjected to variance analysis and the means were compared (Tukey at P<0.05). Three months after seed germination, roots were collected to evaluate the percentage of RC. Results showed that soil texture and liming were the most important... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycorrhiza; Liming; Soil texture; Organic matter; Phosphorus. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062007000300018 Satellite Spectral Data on the Quantification of Soil Particle Size from Different Geographic Regions Rev. Bras. Ciênc. Solo Demattê,José Alexandre Melo; Guimarães,Clécia Cristina Barbosa; Fongaro,Caio Troula; Vidoy,Emmily Larissa Felipe; Sayão,Veridiana Maria; Dotto,André Carnieletto; Santos,Natasha Valadares dos. ABSTRACT: The study of soils, including their physical and chemical properties, is essential for agricultural management. Soil quality must be maintained to ensure sustainable production of food and conservation of natural resources. In this context, soil mapping is important to provide spatial information, which can be performed using remote sensing (RS) techniques. Modeling through use of satellite data is uncertain regarding the amplitude of replicability of the models. The aim of this study was to develop a quantification model for soil texture based on reflectance information from a continuum of bare soils, obtained by overlapping multi-temporal satellite images, and apply this model to an unknown region to evaluate its applicability. Spectral data... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil texture; Remote sensing; Bare soil mask; Multiple linear regression; Digital soil mapping. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100310 Correcting field determination of elemental contents in soils via portable X-ray fluorescence spectrometry Ciência e Agrotecnologia Dijair,Thaís Santos Branco; Silva,Fernanda Magno; Teixeira,Anita Fernanda dos Santos; Silva,Sérgio Henrique Godinho; Guilherme,Luiz Roberto Guimarães; Curi,Nilton. ABSTRACT Portable X-ray fluorescence (pXRF) spectrometry has been useful worldwide for determining soil elemental content under both field and laboratory conditions. However, the field results are influenced by several factors, including soil moisture (M), soil texture (T) and soil organic matter (SOM). Thus, the objective of this work was to create linear mathematical models for conversion of Al2O3, CaO, Fe, K2O, SiO2, V, Ti and Zr contents obtained by pXRF directly in field to those obtained under laboratory conditions, i.e., in air-dried fine earth (ADFE), using M, T and SOM as auxiliary variables, since they influence pXRF results. pXRF analyses in field were performed on 12 soil profiles with different parent materials. From them, 59 samples were... Tipo: Info:eu-repo/semantics/article Palavras-chave: PXRF; Soil moisture; Soil texture; Soil organic matter; Prediction models. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100211 Potential of Spectroradiometry to Classify Soil Clay Content Rev. Bras. Ciênc. Solo Dotto,André Carnieletto; Dalmolin,Ricardo Simão Diniz; Caten,Alexandre ten; Moura-Bueno,Jean Michel. ABSTRACT Diffuse reflectance spectroscopy (DRS) is a fast and cheap alternative for soil clay, but needs further investigation to assess the scope of application. The purpose of the study was to develop a linear regression model to predict clay content from DRS data, to classify the soils into three textural classes, similar to those defined by a regulation of the Brazilian Ministry of Agriculture, Livestock and Food Supply. The DRS data of 412 soil samples, from the 0.0-0.5 m layer, from different locations in the state of Rio Grande do Sul, Brazil, were measured at wavelengths of 350 to 2,500 nm in the laboratory. The fitting of the linear regression model developed to predict soil clay content from the DRS data was based on a R2 value of 0.74 and 0.75,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil texture; Diffuse reflectance of the soil; Proximal soil sensing. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100301 Performance of a reciprocal shaker in mechanical dispersion of soil samples for particle-size analysis Rev. Bras. Ciênc. Solo Dourado,Thayse Aparecida; Silva,Laura Fernanda Simões da; Marinho,Mara de Andrade. The dispersion of the samples in soil particle-size analysis is a fundamental step, which is commonly achieved with a combination of chemical agents and mechanical agitation. The purpose of this study was to evaluate the efficiency of a low-speed reciprocal shaker for the mechanical dispersion of soil samples of different textural classes. The particle size of 61 soil samples was analyzed in four replications, using the pipette method to determine the clay fraction and sieving to determine coarse, fine and total sand fractions. The silt content was obtained by difference. To evaluate the performance, the results of the reciprocal shaker (RSh) were compared with data of the same soil samples available in reports of the Proficiency testing for Soil Analysis... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil texture; Pipette method; Mechanical dispersion; Accuracy analysis. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400008 EXACT EQUATIONS FOR SOIL PARTICLE-SIZE ANALYSIS BY GAMMA-RAY ATTENUATION Scientia Agricola Elias,Elimoel Abraão; Bacchi,Osny Oliveira Santos; Reichardt,Klaus. Soil particle-size analysis by gamma-ray attenuation was first suggested in 1992 and improved in 1997 by diminishing the measurement time and adapting it for automation. It is here demonstrated that when the mass attenuation coefficient <FONT FACE="Symbol">m</font>w and the density Dw are replaced by <FONT FACE="Symbol">m</font>s and Ds (where the subscripts w and s stand for water and solution) in the approximate equations used to estimate the concentration of suspended particles, they become exact. The demonstration is based by treating the dispersant and water solution as one single medium, instead of treating them as two media. In this way, six variables are reduced to only three. Physical considerations suggest that the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Granulometry; Soil mechanical analysis; Soil texture; Gamma attenuation. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161999000100014 Carbon balance and crop residue management in dynamic equilibrium under a no-till system in Campos Gerais Rev. Bras. Ciênc. Solo Ferreira,Ademir de Oliveira; Sá,João Carlos de Moraes; Harms,Mônica Gabrielle; Miara,Simone; Briedis,Clever; Quadros Netto,Caio; Santos,Josiane Burkner dos; Canalli,Lutécia Beatriz. The adoption of no-tillage systems (NT) and the maintenance of crop residues on the soil surface result in the long-term increase of carbon (C) in the system, promoting C sequestration and reducing C-CO2 emissions to the atmosphere. The purpose of this study was to evaluate the C sequestration rate and the minimum amount of crop residues required to maintain the dynamic C equilibrium (dC/dt = 0) of two soils (Typic Hapludox) with different textural classes. The experiment was arranged in a 2 x 2 x 2 randomized block factorial design. The following factors were analyzed: (a) two soil types: Typic Hapludox (Oxisol) with medium texture (LVTM) and Oxisol with clay texture (LVTA), (b) two sampling layers (0-5 and 5-20 cm), and (c) two sampling periods (P1 -... Tipo: Info:eu-repo/semantics/article Palavras-chave: C sequestration rate; Soil texture; Subtropical soils. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000500022 Availability of soil water under tillage systems, mulch management and citrus rootstocks Rev. Bras. Ciênc. Solo Fidalski,Jonez; Auler,Pedro Antonio Martins; Beraldo,José Marcos Garrido; Marur,Celso Jamil; Faria,Rogério Teixeira de; Barbosa,Graziela Moraes de Cesare. The increased availability of soil water is important for the management of non-irrigated orange orchards. The objective of this study was to evaluate the availability of soil water in a Haplorthox (Rhodic Ferralsol) under different tillage systems used for orchard plantation, mulch management and rootstocks in a "Pêra" orange orchard in northwest Paraná, Brazil. An experiment in a split-split-plot design was established in 2002, in an area cultivated with Brachiaria brizantha grass in which three tillage systems (no tillage, conventional tillage and strip-tillage) were used for orchard plantation. This grass was mowed twice a year between the rows, representing two mulch managements in the split plots (no mulching and mulching in the plant rows). The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria brizantha; No tillage; Soil management; Soil texture; Time domain reflectometry. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000300033 Qualidade física de solos influenciada pelo uso e manejo na região de Guaraí-TO. Infoteca-e FILIZOLA, H. F.; FONTANA, A.; DONAGEMMA, G. K.; SOUZA, M. D. de; BORTOLON, E. S. O.; BORTOLON, L.. Resumo: As terras onde predominam solos arenosos distribuem-se em extensas áreas em todas as regiões do Brasil, sendo muito utilizadas em áreas de intensificação da agricultura. O uso desses solos nos sistemas agrícolas tem efeito sobre suas características e atributos. Com o objetivo de avaliar as consequências desse uso sobre algumas das suas propriedades físicas foi selecionada uma área localizada em uma propriedade agrícola no município de Guaraí (TO). Em amostras de solos coletadas em 18 trincheiras foram avaliadas a textura, a estabilidade dos agregados, o grau de floculação das argilas, a porosidade, a densidade, a condutividade hidráulica saturada (K s ), a infiltração e a retenção da água no solo. Os solos avaliados não apresentam nenhum dos... Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Solo arenoso; Física do solo; Uso da terra; Textura do solo; Condutividade hidráulica; Porosidade; Retenção de água no solo; Sandy soils; Soil physical properties; Aggregate stability; Soil texture; Soil density; Hydraulic conductivity; Soil water retention; Soil permeability. Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1081400 Qualidade física de solos influenciada pelo uso e manejo na região de Guaraí-TO. Infoteca-e FILIZOLA, H. F.; FONTANA, A.; DONAGEMMA, G. K.; SOUZA, M. D. de; BORTOLON, E. S. O.; BORTOLON, L.. Resumo: As terras onde predominam solos arenosos distribuem-se em extensas áreas em todas as regiões do Brasil, sendo muito utilizadas em áreas de intensificação da agricultura. O uso desses solos nos sistemas agrícolas tem efeito sobre suas características e atributos. Com o objetivo de avaliar as consequências desse uso sobre algumas das suas propriedades físicas foi selecionada uma área localizada em uma propriedade agrícola no município de Guaraí (TO). Em amostras de solos coletadas em 18 trincheiras foram avaliadas a textura, a estabilidade dos agregados, o grau de floculação das argilas, a porosidade, a densidade, a condutividade hidráulica saturada (K s ), a infiltração e a retenção da água no solo. Os solos avaliados não apresentam nenhum dos... Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Solo arenoso; Física do solo; Uso da terra; Textura do solo; Condutividade hidráulica; Porosidade; Retenção de água no solo; Sandy soils; Soil physical properties; Aggregate stability; Soil texture; Soil density; Hydraulic conductivity; Soil water retention; Soil permeability. Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1075224 Diagnóstico de atributos físico-hídricos dos solos de textura arenosa em áreas de intensificação agrícola no bioma Cerrado. Infoteca-e FILIZOLA, H. F.; FONTANA, A.; DONAGEMMA, G. K.; VIANA, J. H. M.; LUIZ, A. J. B.; SOUZA, M. D. de. Resumo - As terras onde predominam solos de textura arenosa e franco-arenosa são, em geral, consideradas marginais em relação à sua aptidão agrícola. Isso se dá, em geral, devido à restrita capacidade de retenção de água e de nutrientes nesses solos, o que interfere diretamente na sua capacidade produtiva. O objetivo deste estudo foi avaliar as propriedades físico-hídricas de solos arenosos em áreas de cerrado, agricultura e pecuária em três estados brasileiros (Tocantins, Minas Gerais e Mato Grosso). Os resultados indicam uma concentração da distribuição granulométrica nas faixas da areia fina e da média, porém com diferenças entre os solos avaliados. Todos os solos avaliados têm também outras características em comum, como o elevado índice de... Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Mato Grosso; Minas Gerais; Tocantins; Solo Arenoso; Granulometria; Textura do Solo; Cerrado; Sandy soils; Sandy loam soils; Soil texture; Cerrado soils. Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112863 Control of ALS- and EPSPS-Resistant Amaranthus palmeri by Alternative Herbicides Applied in PRE- and POST-Emergence Planta Daninha GONÇALVES NETTO,A.; NICOLAI,M.; CARVALHO,S.J.P.; MALARDO,M.R.; LÓPEZ-OVEJERO,R.F.; CHRISTOFFOLETI,P.J.. ABSTRACT: The emergence of resistant biotypes of the Amaranthus palmeri species in cotton production areas of the state of Mato Grosso, Brazil, generated the need for correct identification of this species and information on viable herbicidal tools for their management. Thus, greenhouse experiments were conducted to evaluate the efficacy of alternative herbicides applied to A. palmeri in pre and post emergence. A randomized block design with four replications was used. The efficacy of herbicides applied in pre emergence was evaluate in two experiments, one in a clayey and other in a sandy soil; 9 herbicide treatments (8 with herbicide application and a control without application) were applied on each soil. Subsequently, two experiments with different... Tipo: Info:eu-repo/semantics/article Palavras-chave: Caruru; Weed control; Resistance; Phenology; Soil texture. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100193 Distribución espacial de nematodos agalladores (Meloidogyne spp.), y su relación con factores edáficos en la Vega de Metztitlán, Hidalgo, México Colegio de Postgraduados Hernández Flores, Benjamín. México ocupa el onceavo lugar a nivel mundial como productor de jitomate (Lycopersicon esculentum Mill.), con una producción de 2.15 millones de toneladas (1.7% del total mundial), sin embargo es el segundo comercializador del producto en el mundo con aproximadamente 895,126 toneladas métricas, solo después de España que exporta 1,023,028 toneladas métricas. En México, el jitomate es una de las hortalizas de mayor importancia por el valor de su producción y superficie cultivada. Según cifras del SIAP-SAGARPA la superficie total cosechada durante el año de 2004 fue de 71,502.3 hectáreas y una producción total de 2.3 millones de toneladas, con un valor de la producción de 14,375.6 millones de pesos. En México los principales productores son: Sinaloa, Baja... Tipo: Tesis Palavras-chave: M. incognita; M. arenaria; M. javanica; M. hapla; Textura de suelos; Materia orgánica; PH; Conductividad eléctrica; Meloidogyne spp.; Distribución espacial; Maestría; Fitopatología; Soil texture; Organic matter; Electrical conductivity; Spatial distribution. Ano: 2007 URL: http://hdl.handle.net/10521/1584 Potassium leaching in different soils as a function of irrigation depths AGRIAMBI Mendes,Walter da C.; Alves Júnior,José; Cunha,Paulo C. R. da; Silva,Anderson R. da; Evangelista,Adão W. P.; Casaroli,Derblai. ABSTRACT Potassium (K) can be easily lost by the leaching process. The objective of this study was to quantify K leaching in clayey and sandy soils under increasing irrigation depths. The experiment was conducted in 2014, in a protected environment, after extraction of undisturbed soil columns, with diameter of 144 mm and height of 300 mm. The columns were arranged in a randomized complete block in a factorial design with three replicates, corresponding to eight treatments: two soil types and four water depths, equivalent to 50, 100, 150 and 200% of the amount of water necessary to bring the soil moisture to field capacity. Potassium chloride, with 58% of K2O, was used as K source. Water replacement in the columns was performed every three days, for a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertilization; Soil texture; Nutrient loss; Water management. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001100972 Use of Sunflower and Soybean as Bioindicators to Detect Atrazine Residues in Soils Planta Daninha NOVAIS,J.; MENDES,K.F.; INOUE,M.H.; MACIEL,C.D.G.; HELVIG,E.O.; STANIESKI,C.M.. ABSTRACT: Atrazine is selective for maize, sugarcane and sorghum and may interfere with successor crops such as sunflower and soybean. Despite this problem, there are few studies about the residual effect of this herbicide in these crops. Thus, the objective of the research was to evaluate the residual effect of atrazine through bioavailability of the herbicide in sandy and clayey soils, using soybean and sunflower as bioindicators. The design was completely randomized with four replications and a 2 × 7 + 1 factorial scheme, that is, two doses (2,000 and 2,500 g ha-1), seven application times (0, 15, 30, 45, 60, 75 and 90 days between application (DBA) of herbicide and bioindicator sowing) and one control without application. Dry mass and chlorophyll... Tipo: Info:eu-repo/semantics/article Palavras-chave: Residual effect; Herbicide; Bioassay method; Soil texture. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100160 Ant species distribution along a topographic gradient in a "terra-firme" forest reserve in Central Amazonia PAB Oliveira,Pollyana Yvonica de; Souza,Jorge Luiz Pereira de; Baccaro,Fabricio Beggiato; Franklin,Elizabeth. In Amazonia, topographical variations in soil and forest structure within "terra-firme" ecosystems are important factors correlated with terrestrial invertebrates' distribution. The objective of this work was to assess the effects of soil clay content and slope on ant species distribution over a 25 km² grid covering the natural topographic continuum. Using three complementary sampling methods (sardine baits, pitfall traps and litter samples extracted in Winkler sacks), 300 subsamples of each method were taken in 30 plots distributed over a wet tropical forest in the Ducke Reserve (Manaus, AM, Brazil). An amount of 26,814 individuals from 11 subfamilies, 54 genera, 85 species and 152 morphospecies was recorded (Pheidole represented 37% of all... Tipo: Info:eu-repo/semantics/article Palavras-chave: Beta diversity; Environmental gradient; Formicidae; Soil texture; Tropical forest. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800008 Registros recuperados: 27 Primeira ... 1 2 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco