Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western Amazon
Studying particle size distribution is important to understand soil structure and formation processes. This research aimed to assess the fractal dimension of soil texture in Indian Dark Earth (IDE) areas in southern Amazonas state under different land uses, as follows: two areas in the municipality...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2020-08-01
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| Series: | Bioscience Journal |
| Subjects: | |
| Online Access: | http://www.seer.ufu.br/index.php/biosciencejournal/article/view/47894 |
| _version_ | 1818454815727943680 |
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| author | Half Weinberg Corrêa Jordão Milton César Costa Campos José Maurício da Cunha Ivanildo Amorim de Oliveira Laércio Santos Silva Elilson Gomes de Brito Filho Bruno Campos Mantovanelli Ludmila de Freitas Romário Pimenta Gomes |
| author_facet | Half Weinberg Corrêa Jordão Milton César Costa Campos José Maurício da Cunha Ivanildo Amorim de Oliveira Laércio Santos Silva Elilson Gomes de Brito Filho Bruno Campos Mantovanelli Ludmila de Freitas Romário Pimenta Gomes |
| author_sort | Half Weinberg Corrêa Jordão |
| collection | DOAJ |
| description | Studying particle size distribution is important to understand soil structure and formation processes. This research aimed to assess the fractal dimension of soil texture in Indian Dark Earth (IDE) areas in southern Amazonas state under different land uses, as follows: two areas in the municipality of Apuí, one growing cocoa and the other coffee; a grassland area in the municipality of Manicoré; and a forest area in the municipality of Novo Aripuanã. A sampling grid containing 88 collection points (intersecting points on the grid) was established in each area, measuring 80 x 42 m for the cocoa and coffee-growing sites, and 80 x 56 m and 60 x 42 m for the grassland and forest areas, respectively. Soil samples were collected in soil core and as clumps at a depth of 0.0-0.20m to determine the structural physical properties and texture of the soil. The following physical attributes were assessed: texture (PSD), bulk density (BD), macroporosity (Macro), microporosity (Micro), total porosity (TP) and aggregate stability (GMD and WMD). The fractal dimension (D) of the soil texture was determined, followed by analysis of variance and comparison of the means using Tukey’s test (p≤0.05). Pearson’s correlation was applied to assess the correlation between variables. There was a significant difference between the IDEs studied, with a higher D value in the cocoa-growing area in relation to the other sites. Additionally, the larger the clay fraction, the higher the D value. Fractal dimension (D) showed a positive correlation with sand, clay, BD, Macro, GMD and WMD, and a negative correlation with silt, micro, TP. Based on the D values obtained, the ADE cultivated with cocoa showed superior quality in relation to the other areas studied. |
| first_indexed | 2024-12-14T22:00:53Z |
| format | Article |
| id | doaj.art-a9871c3d2b3d4b9cbf7c7facb8fc95f8 |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-12-14T22:00:53Z |
| publishDate | 2020-08-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-a9871c3d2b3d4b9cbf7c7facb8fc95f82022-12-21T22:46:00ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632020-08-0136610.14393/BJ-v36n6a2020-4789447894Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western AmazonHalf Weinberg Corrêa JordãoMilton César Costa CamposJosé Maurício da CunhaIvanildo Amorim de OliveiraLaércio Santos SilvaElilson Gomes de Brito FilhoBruno Campos MantovanelliLudmila de FreitasRomário Pimenta GomesStudying particle size distribution is important to understand soil structure and formation processes. This research aimed to assess the fractal dimension of soil texture in Indian Dark Earth (IDE) areas in southern Amazonas state under different land uses, as follows: two areas in the municipality of Apuí, one growing cocoa and the other coffee; a grassland area in the municipality of Manicoré; and a forest area in the municipality of Novo Aripuanã. A sampling grid containing 88 collection points (intersecting points on the grid) was established in each area, measuring 80 x 42 m for the cocoa and coffee-growing sites, and 80 x 56 m and 60 x 42 m for the grassland and forest areas, respectively. Soil samples were collected in soil core and as clumps at a depth of 0.0-0.20m to determine the structural physical properties and texture of the soil. The following physical attributes were assessed: texture (PSD), bulk density (BD), macroporosity (Macro), microporosity (Micro), total porosity (TP) and aggregate stability (GMD and WMD). The fractal dimension (D) of the soil texture was determined, followed by analysis of variance and comparison of the means using Tukey’s test (p≤0.05). Pearson’s correlation was applied to assess the correlation between variables. There was a significant difference between the IDEs studied, with a higher D value in the cocoa-growing area in relation to the other sites. Additionally, the larger the clay fraction, the higher the D value. Fractal dimension (D) showed a positive correlation with sand, clay, BD, Macro, GMD and WMD, and a negative correlation with silt, micro, TP. Based on the D values obtained, the ADE cultivated with cocoa showed superior quality in relation to the other areas studied.http://www.seer.ufu.br/index.php/biosciencejournal/article/view/47894fractal dimension.soil physics.soil use. |
| spellingShingle | Half Weinberg Corrêa Jordão Milton César Costa Campos José Maurício da Cunha Ivanildo Amorim de Oliveira Laércio Santos Silva Elilson Gomes de Brito Filho Bruno Campos Mantovanelli Ludmila de Freitas Romário Pimenta Gomes Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western Amazon Bioscience Journal fractal dimension. soil physics. soil use. |
| title | Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western Amazon |
| title_full | Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western Amazon |
| title_fullStr | Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western Amazon |
| title_full_unstemmed | Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western Amazon |
| title_short | Fractal features of soil texture and physical attributes in indian dark earth under different uses in Western Amazon |
| title_sort | fractal features of soil texture and physical attributes in indian dark earth under different uses in western amazon |
| topic | fractal dimension. soil physics. soil use. |
| url | http://www.seer.ufu.br/index.php/biosciencejournal/article/view/47894 |
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