Spatial variability of soil physical-hydric attributes under bovine trampling in agreste of Pernambuco State, Brazil

Batista, Pedro Henrique Dias; Almeida, Gledson Luiz Pontes de; Pandorfi, Héliton; Tavares, Uilka Elisa; Melo, Airon Aparecido Silva de; Guiselini, Cristiane

doi:10.4025/actasciagron.v41i1.39594

Cited by 6 publications

(3 citation statements)

References 39 publications

(52 reference statements)

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“…The results of the factor analysis and remote sensing obtained are confirmed by Batista et al (2019) in a study of the spatial variability of the soil physical attributes, in the same area of the present research. The authors observed that after 21 days of grazing, the physical attributes of the analyzed soil were altered by the action of animal trampling, mainly in the eastern region of the paddock, where according to the NDVI maps ( Figures 3A and B), this region had the highest values (0.27 -0.30) for the period before grazing and the vegetation in this area was highly reduced (0.12 -0.15), which may indicate a preferred grazing area.…”

Section: Resultssupporting

confidence: 85%

Hydro-physical properties of soil and pasture vegetation coverage under animal trampling

Batista

Almeida

Silva

et al. 2020

Rev. bras. eng. agríc. ambient.

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Soil compaction and pasture degradation are often due to the pressure exerted by the animals’ hooves. In this sense, this study aimed to verify possible changes in the soil and changes in the pasture vegetation coverage due to animal trampling. Thus, a study was carried out on a farm in the ‘Agreste’ region of Pernambuco, Brazil. Soil samples were collected before and after the grazing period, with 36 points regularly distributed in an area of 40 × 40 m managed under continuous grazing, with a stocking rate of 12 AU ha-1. At each point, density, total porosity, humidity, and penetration resistance of the soil at a depth of 0-0.10 m, as well as hydraulic conductivity and organic matter in the soil surface, were determined. Before and after grazing, images from the Sentinel-2A satellite were also obtained to observe the response pattern of pasture vegetation over time using the Normalized Difference Vegetation Index (NDVI) and Pasture Vegetation Coverage (PVC). The physical-hydric attributes of the soil were subjected to factor analysis. NDVI and PVC maps were evaluated for spatial variability. After the grazing period, there was a change in the attributes of the soil under study due to the animal trampling. Remote sensing (NDVI and PVC) highlighted patterns of variation, such as the reduction of pasture and possible areas of preference for the animals.

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Section: Resultssupporting

confidence: 85%

Hydro-physical properties of soil and pasture vegetation coverage under animal trampling

Batista

Almeida

Silva

et al. 2020

Rev. bras. eng. agríc. ambient.

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“…suggest that for clayey soils, density values in the range of 1.40 to 1.60 kg.dm -3 may limit root growth of crops, while for sandy soils, this range varies between 1.60 to 1.80 kg.dm -3 . According to Batista et al (2019), soil bulk density is one of the physical properties that characterizes soil compaction status. Therefore, it was possible to characterize the spatial distribution behavior of soil density in the area of this study and its compaction influence on sugarcane yield.…”

Section: Resultsmentioning

confidence: 99%

Spatial dependence of sugarcane yield according to the altitude and soil physical attributes in a transect

Souza,

Silva,

Paz-González

et al. 2023

Rev. Caatinga

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Soil management carried out in areas with sugarcane production causes changes in the soil physical attributes, and geostatistics makes it possible to study the behavior of the spatial distribution of these variations. This study aimed to evaluate the behavior of the spatial distribution of sugarcane yield averages according to the altitude and soil physical attributes along a transect in Goiana, Pernambuco, Brazil. Sugarcane yield averages, altitudes, and soil physical attributes, such as soil bulk density, total porosity, micro and macro porosity, sand (total, coarse, and fine), silt, and clay, in the 0.00-0.20 and 0.20-0.40 m soil layers were determined at 20 m intervals along the transect characterized by a toposequence of Ultisols and Spodosols. Exploratory data analysis was performed with the aid of descriptive statistics. The analysis of spatial dependence was performed using geostatistics. Pairs of semivariances were obtained using the GS+ software. The development and adjustment of the semivariograms were performed using the GEOEAS geostatistical tool. The highest contents of the finest soil particles were found in the lowest sections of the transect, in the 0.20-0.40 m soil layers. The highest amount of macropores was observed in the subsurface soil layer. The areas with the lowest amount of micropores showed the lowest average sugarcane yield, around 32.00 t.ha-1. The geostatistical model that best fitted the data set was the spherical model.

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“…A dependência espacial foi classificada como forte, pois, nos dois povoamentos avaliados, o valor do efeito pepita foi inferior a 25% do valor do patamar (Batista, 2018). Para a variável QS, as problemáticas fitossanitárias encontradas no estudo, independente das áreas, se distribuíram de forma agregada.…”

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Qualidade de povoamentos de Mogno africano na Amazônia Oriental

Gonçalves,

Sousa,

Mariano

et al. 2023

Rev. Agro. Amb.

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Khaya grandifoliola (mogno africano) é uma espécie com grande potencial de mercado devido ao elevado valor agregado de sua madeira, rápido crescimento e resistência a pragas. O objetivo do estudo foi mapear variáveis dendrométricas, fitotécnicas e sanitárias de povoamentos distintos de mogno africano e indicar as características e potencialidades da produção nestas áreas. O estudo foi realizado no município de Curionópolis, Pará (áreas com monocultivo de mogno africano, consórcios de mogno africano com milho e mamão). As avaliações consistiram na análise de correlação entre o diâmetro e altura das plantas e análises geoestatísticas da sanidade, qualidade de copa, ramificações, qualidade de fuste e de sobrevivência. A correlação entre altura e diâmetro apresentou maiores valores para o consórcio com milho, indicando adaptabilidade do mogno africano. As áreas de estudo apresentaram forte dependência espacial das variáveis analisadas. Os plantios apresentaram menor incidência de pragas e ramos quando consorciados. Logo, os plantios de mogno africano apresentaram resultados favoráveis após sua implantação na região da Amazônia Oriental, essencialmente quando consorciados.

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Spatial variability of soil physical-hydric attributes under bovine trampling in agreste of Pernambuco State, Brazil

Cited by 6 publications

References 39 publications

Hydro-physical properties of soil and pasture vegetation coverage under animal trampling

Hydro-physical properties of soil and pasture vegetation coverage under animal trampling

Spatial dependence of sugarcane yield according to the altitude and soil physical attributes in a transect

Qualidade de povoamentos de Mogno africano na Amazônia Oriental

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