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ID persistente do conjunto de dados
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doi:10.60502/SoilData/P6R332 |
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Data de Publicação
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2024-12-14 |
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Título
| Training Field Soil Data for Mapping of Soil Particle Size Distribution (0–30 cm) in Brazil (MapBiomas Soil Collection 2, Beta Version) |
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Autor
| MapBiomas (MapBiomas) |
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Entre em contato
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Use o botão de e-mail acima para entrar em contato.
MapBiomas (MapBiomas) [en] |
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Descrição
| Collection of 11,633 georeferenced points with data from 19,965 soil layers used to train regression models for mapping soil particle size distribution (0–30 cm) in Brazil. These data supported the development of clay, silt, and sand content maps in Collection 2 of the MapBiomas Soil project (beta version). Each record includes spatial coordinates, the midpoint depth of the soil layer, and additive log-ratios—log(clay/sand) and log(silt/sand)—for the 0–30 cm soil layer. (2024-12-06)
Detailed description: Soil data were collected from 262 studies published in the Brazilian soil data repository SoilData (https://soildata.mapbiomas.org). After analysis, a total of 182 studies was selected for the spatial modeling of soil particle size distribution (clay, silt, and sand). These studies represent 11,633 points distributed across Brazil, totaling 19,965 soil layers up to 40 cm in depth. For each layer, the percentage proportions of clay, silt, and sand were transformed into additive log-ratios—log(clay/sand) and log(silt/sand)—a mathematical representation that enhances the stability of the modeling process.
The dataset includes the following columns:
- point_id: An alphanumeric code that identifies the source dataset ("ctb" followed by four numbers, such as ctb0003) and the ID of the soil profile, observation, or sampling point (event) in that dataset.
- latitude and longitude: Decimal geographic coordinates in the WGS84 coordinate reference system (EPSG:4326).
- depth: The midpoint depth of the soil layer sampled in the field.
- log_clay_sand and log_silt_sand: Additive log-ratios for clay-to-sand and silt-to-sand fractions, respectively.
The code used to process the data is available at https://github.com/Laboratorio-de-Pedometria/mapbiomas-soc. (2024-12-06) |
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Assunto
| Ciências Agrárias; Ciências da Terra e do meio ambiente |
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Palavra-chave
| Particle size distribution
Topsoil
Brazilian biomes |
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Idioma
| English; Portuguese |
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Colaborador
| Líder do projeto : Ferreira, Laerte
Líder do projeto : Samuel-Rosa, Alessandro
Líder do projeto : Horst, Taciara Zborowski
Líder do projeto : Shimbo, Julia
Líder do projeto : Rosa, Marcos
Gerenciador de dados : Anjos, Marcos Alexandre dos
Curador de dados : Huf dos Reis, Aline Mari
Coletor de dados : Kerber, Débora Liriel
Coletor de dados : Peruzzi, Vitor
Coletor de dados : Serena, Gabriele Vitória Silva
Coletor de dados : Pretto, Ana Caroline
Coletor de dados : Pontes, David Oliveira
Coletor de dados : Silva, Luciana da Luz
Coletor de dados : Cardoso, Marcos Vinícius Souza
Coletor de dados : Cardoso, Maria Eduarda Ferreira
Curador de dados : Alencastro, Mary Evelyn Santos
Curador de dados : Sobucki, Lisiane
Coletor de dados : Parizzi, Talita
Coletor de dados : Capoane, Viviane
Coletor de dados : Souza, Deórgia
Coletor de dados : Tornquist, Carlos Gustavo
Coletor de dados : Rocha, Anderson Sandro da
Gerenciador de dados : Oliveira, Sergio
Gerenciador de dados : Munsberg, Glauco
Líder do projeto : Azevedo, Tasso |
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Data de Distribuição
| 2024-12-06 |
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Depositante
| Samuel-Rosa, Alessandro |
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Data do depósito
| 2024-12-06 |
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Período coberto
| Start Date: 1958 ; End Date: 2023 |
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Data de Coleta
| Start Date: 1958 ; End Date: 2023 |
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Tipo de dados
| survey data; geo-referenced data; raw data; compiled data |
