Influência da cobertura vegetal de inverno e da adubação orgânica e, ou, mineral sobre as propriedades físicas de uma Terra Roxa Estruturada

Andreola, F.; Costa, Liovando Marciano da; Olszevski, Nelci

doi:10.1590/s0100-06832000000400017

Cited by 45 publications

(43 citation statements)

References 8 publications

(13 reference statements)

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“…De modo geral, o solo mantido em estado natural, sob vegetação nativa, apresenta características físicas como estrutura, permeabilidade, densidade e porosidade do solo adequadas ao desenvolvimento normal das plantas (Andreola et al, 2000). Na medida em que se intensifica o uso agrícola os atributos físico-hídricos do solo sofrem alterações, geralmente adversas ao crescimento vegetal, que ficam mais nítidas quando os sistemas de uso são comparados com o estado do solo ainda sob vegetação natural (Santos, 2010, Santos et al, 2011a.…”

Section: Estrutura Do Solounclassified

Uso e manejo do solo e seus impactos sobre a qualidade física

Stefanoski¹,

Santos²,

Marchão

et al. 2013

Rev. bras. eng. agríc. ambient.

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RESUMOO uso racional do solo tem sido objeto de estudo e discussões em função da busca de alternativas tecnológicas que possibilitem o manejo correto do solo e, consequentemente, uma agricultura sustentável. Objetivou-se, com este trabalho, levantar dados sobre a qualidade físico-hídrica e sua relação com os impactos gerados pelo manejo do solo por meio de uma revisão bibliográfica, contribuindo para melhor conhecimento das informações disponíveis na literatura. O uso de indicadores de qualidade física do solo permite designar práticas adequadas de manejo do solo. Uma análise crítica dos indicadores de qualidade física do solo revela que o índice proposto por Reynolds et al. (2002) possui limitações quanto ao uso, o intervalo hídrico ótimo apresenta bons resultados e o índice S necessita de mais trabalhos com o uso de h (tensão de água no solo) como variável independente. Assim, os indicadores de qualidade física do solo são úteis para avaliação do estado de conservação do solo possibilitando a gestão segura dos recursos naturais; todavia, os indicadores existentes apresentam, como inconvenientes, a elevada complexidade de execução e os custos de obtenção, o que configura oportunidade para o desenvolvimento de novos indicadores de qualidade física do solo.Palavras-chave: sistemas de manejo, compactação, estrutura do solo, indicadores de qualidade física Soil use and management and its impact on physical quality ABSTRACT The rational use of the soil has been the subject of study and discussion due to search for technological alternatives that allow the adequate management of the soil and consequently, a sustainable agriculture. The objective of this study was to collect data about the hydro-physical quality and its relation to the impacts caused by soil management through a literature review, contributing to better understanding of existing information in the literature. The use of indicators of physical quality of soil permit the designation of most appropriate soil management practices, especially those exposed to intensive agriculture. A critical analysis of indicators of soil quality show that the index proposed by Reynolds et al. (2002) has limitations about its use, the optimal hydric interval presents good results, and the S index needs more works with the use of h (soil-water suction) as the independent variable. Thus, the indicators of physical quality of soil are useful for evaluating the state of soil conservation, to making possible the secure management of natural resources, however, the existing indicators present very high complexity of the implementation and acquisition costs, which configures opportunity for the development of new indicators of physical quality of soil.

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Section: Estrutura Do Solounclassified

Uso e manejo do solo e seus impactos sobre a qualidade física

Stefanoski¹,

Santos²,

Marchão

et al. 2013

Rev. bras. eng. agríc. ambient.

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“…The following 10 papers were selected from the Brazilian Journal of Soil Science as described above: Andreola et al, 2000;Beutler et al, 2001;Stone & Silveira, 2001;Oliveira et al, 2001;Lima & Andrade, 2001;Albuquerque & Reinert, 2001;Souza et al, 2001;Marques et al, 2002;Pedrotti et al, 2003;Ghini et al, 2003;Pott & De Maria, 2003) and the three older ones: Scardua, 1972;Freire, 1975;Primavesi et al, 1984. The results are presented in table 5 together with the overall average and ME.…”

Section: Model Testing With Other Published Datamentioning

confidence: 99%

“…Soil macro and microporosity have been used in important studies on soil aeration, soil water dynamics and soil compaction (Scardua, 1972;Freire, 1975;Primavesi et al,1984) with a notable intensification in this decade in studies on soil management (Andreola et al, 2000;Beutler et al, 2001;Stone & Silveira, 2001;Oliveira et al, 2001;Lima & Andrade, 2001;Albuquerque & Reinert, 2001;Souza et al, 2001;Marques et al, 2002;Pedrotti et al, 2003;Ghini et al, 2003;Pott & De Maria, 2003). Macroporosity, particularly, is considered an excellent indicator of soil degradation, due to its relation with compaction.…”

Section: Introductionmentioning

confidence: 99%

Method to estimate soil macroporosity and microporosity based on sand content and bulk density

Stolf

Thurler

Bacchi

et al. 2011

Rev. Bras. Ciênc. Solo

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SUMMARYMacroporosity is often used in the determination of soil compaction. Reduced macroporosity can lead to poor drainage, low root aeration and soil degradation. The aim of this study was to develop and test different models to estimate macro and microporosity efficiently, using multiple regression. Ten soils were selected within a large range of textures: sand (Sa) 0.07-0.84; silt 0.03-0.24; clay 0.13-0.78 kg kg -1 and subjected to three compaction levels (three bulk densities, BD). granulométricas -areia: 0,07-0,84; silte: 0,03-0,24; e argila: 0,13-0,78 macro = 0,465 Ds + 0,212 areia; micro = 0,337 + 0,294 areia; Pt = 1,082

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“…Soil in its natural state, under natural vegetation, provides physical conditions that can favor the growth of native species (Andreola et al, 2000). In contrast, the physical properties of cropped soils are altered (Neves et al, 2007), leading to soil degradation (Bertol et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Use of Scaled Semivariograms in the Planning Sample of Soil Physical Properties in Southern Amazonas, Brazil

Aquino¹,

Campos

Marques³

et al. 2015

Rev. Bras. Ciênc. Solo

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There is a great lack of information from soil surveys in the southern part of the State of Amazonas, Brazil. The use of tools such as geostatistics may improve environmental planning, use and management. In this study, we aimed to use scaled semivariograms in sample design of soil physical properties of some environments in Amazonas. We selected five areas located in the south of the state of Amazonas, Brazil, with varied soil uses, such as forest, archaeological dark earth (ADE), pasture, sugarcane cropping, and agroforestry. Regular mesh grids were set up in these areas with 64 sample points spaced at 10 m from each other. At these points, we determined the particle size composition, soil resistance to penetration, moisture, soil bulk density and particle density, macroporosity, microporosity, total porosity, and aggregate stability in water at a depth of 0.00-0.20 m. Descriptive and geostatistical analyses were performed. The sample density requirements were lower in the pasture area but higher in the forest. We concluded that managed-environments had differences in their soil physical properties compared to the natural forest; notably, the soil in the ADE environment is physically improved in relation to the others. The physical properties evaluated showed a structure of spatial dependence with a slight variability of the forest compared to the others. The use of the range parameter of the semivariogram analysis proved to be effective in determining an ideal sample density.

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Influência da cobertura vegetal de inverno e da adubação orgânica e, ou, mineral sobre as propriedades físicas de uma Terra Roxa Estruturada

Cited by 45 publications

References 8 publications

Uso e manejo do solo e seus impactos sobre a qualidade física

Uso e manejo do solo e seus impactos sobre a qualidade física

Method to estimate soil macroporosity and microporosity based on sand content and bulk density

Use of Scaled Semivariograms in the Planning Sample of Soil Physical Properties in Southern Amazonas, Brazil

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