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Record W2338825006 · doi:10.17271/1984324081320151148

AVALIAÇÃO DOS ATRIBUTOS FÍSICO-HÍDRICOS DOS SOLOS EM IGUARAÇU-PR: SUBSÍDIOS PARA O MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA

2015· article· pt· W2338825006 on OpenAlexaboutno aff
Francieli Sant’ana Marcatto, Angélica Hercoli, Hélio Silveira, Carlos Henrique da Graça

Bibliographic record

VenueRevista Científica ANAP Brasil · 2015
Typearticle
Languagept
FieldAgricultural and Biological Sciences
TopicSoil Management and Crop Yield
Canadian institutionsnot available
Fundersnot available
KeywordsOxisolHydric soilUltisolPenetrometerEnvironmental scienceSoil waterHydraulic conductivitySoil physicsSoil textureForestrySoil scienceGeography

Abstract

fetched live from OpenAlex

O conhecimento das propriedades físico-hídricas dos solos subsidia na tomada de decisão sobre a qual, a melhor estratégia para o bom uso e manejo dos solos de determinada área é considerar as particularidades de cada classe e adotar práticas conservacionistas de suporte. Desse modo, o objetivo desse trabalho é avaliar o comportamento físico-hídrico do Latossolo Vermelho e Argissolo Vermelho ambos de textura média, em diferentes tipos de uso da terra no município de Iguaraçu-PR. Foram realizadas coletas nos horizontes superficiais dos solos sob os usos de pastagem, culturas temporárias, cana-de-açúcar e floresta nativa. Para cada tipo de solo e uso foi determinada a densidade dos solos, porosidade total, resistência à penetração, velocidade de infiltração e condutividade hidráulica, de acordo com os critérios estabelecidos no manual de métodos de análise do solo (EMBRAPA, 1997). A permeabilidade foi determinada com o uso do permeâmetro de Guelph, com o método de uma carga hidráulica e a resistência à penetração com o penetrômetro Geotester Pocket. Pode-se concluir que as piores condições encontradas ocorreram no Argissolo sob pastagem e no Latossolo sob cana-de-açúcar, sendo necessárias práticas de manejo que minimizem os impactos, conciliando a exploração econômica do solo e a conservação de suas propriedades. PALAVRAS-CHAVE: Permeabilidade. Qualidade física. Latossolo e Argissolo. EVALUATION OF PHYSICAL-HYDRIC SOIL ATTRIBUTES IN IGUARAÇU-PR: SUBSIDIES FOR MANAGEMENT AND PRESERVATION OF WATER AND SOIL ABSTRACTThe knowledge of the physical-hydric proprieties of soil supports the decision making process in which the best soil management strategy in a given area is taking into account the particularities of each class and adopt conservationist support measures. Thus, the objective of this study is to evaluate the physical-hydric behavior of medium texture Red Oxisol and Red Ultisol under different uses in the city of Iguaraçu, Parana State, Brazil. Samplings were conducted on the surface horizon of soils under pasture, temporary crops, sugarcane crops and native forest. Each soil had its soil density, total porosity, resistance to penetration, infiltration rate and hydraulic conductivity determined in accordance with the established criteria from the soil analysis methods manual. The permeability was determined using a Guelph permeameter with the one hydraulic load method, and the resistance to penetration was measured using an impact penetrometer Geotester Pocket. The tests point to the conclusion that the worst conditions were found in Ultisol under pasture and in Oxisol under sugarcane, making necessary management practices to minimize the environmental impacts in order to conciliate the economic exploitation of soil and the conservation of its properties. KEYWORDS: Permeability. Physical quality. Oxisol and Ultisol. EVALUACIÓN DE LOS ATRIBUTOS FÍSICO-HÍDRICOS DE LOS SUELOS EN IGUARAÇU-PR: SUBSIDIOS PARA EL MANEJO Y CONSERVACIÓN DE SUELOS Y AGUAS RESUMENEl conocimiento de las propiedades físico-hídricas de los suelos subsidia la toma de decisiones en el que la mejor estrategia para el buen uso y manejo del suelo en un área determinada es considerar las particularidades de cada clase y adoptar prácticas de conservación. Así, el objetivo de este estudio es evaluar el comportamiento físico-hídrico del Oxisol y Ultisol ambos de textura media, en diferentes tipos de uso de la tierra en Iguaraçu-PR. Las muestras fueron recolectadas en los horizontes superficiales del suelo en el uso de pastos, cultivos temporales, caña de azúcar y el bosque nativo. Para cada tipo de suelo y su uso se determinó la densidad del suelo, la porosidad, la resistencia a la penetración, velocidad de infiltración y conductividad hidráulica, de acuerdo con los criterios establecidos en el manual de métodos de análise do solo (EMBRAPA, 1997). La permeabilidad se determinó usando el permeámetro de Guelph con el método de una carga hidráulica y la resistencia a la penetración con el penetrometro Geotester Pocket. Se puede concluir que las peores condiciones encontradas se produjeron en el Ultisol a pastos y Oxisol en la caña de azúcar, que requieren prácticas de manejo que minimicen los impactos, con la conciliación de la explotación económica del suelo y la preservación de sus propiedades. PALABRAS CLAVE: Permeabilidad. Calidad física. Oxisol y Ultisol.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.051
Threshold uncertainty score0.102

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.002
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.080
GPT teacher head0.284
Teacher spread0.204 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations2
Published2015
Admission routes1
Has abstractyes

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Same venueRevista Científica ANAP BrasilSame topicSoil Management and Crop YieldFrench-language works237,207