Sandy soil spots in northwestern Paraná: approaches for identification and quantification
The predominance of sandy soils in the Northwest region of the state of Paraná, associated with the removal of natural vegetation, favored the development of patches of white sand on the surface without any aggregation. These spots are associated with the different types of land use existing in the...
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| Format: | Article |
| Language: | English |
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União da Geomorfologia Brasileira
2024-11-01
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| Series: | Revista Brasileira de Geomorfologia |
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| Online Access: | https://rbgeomorfologia.org.br/rbg/article/view/2614 |
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| author | Leonardo José Cordeiro Santos José Guilherme Oliveira Fabio Marcelo Breunig M´árcia Regina Calegari Elias Fernando Berra Jonez Fidalski |
| author_facet | Leonardo José Cordeiro Santos José Guilherme Oliveira Fabio Marcelo Breunig M´árcia Regina Calegari Elias Fernando Berra Jonez Fidalski |
| author_sort | Leonardo José Cordeiro Santos |
| collection | DOAJ |
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The predominance of sandy soils in the Northwest region of the state of Paraná, associated with the removal of natural vegetation, favored the development of patches of white sand on the surface without any aggregation. These spots are associated with the different types of land use existing in the region and the process of lateral soil transformation. As they constitute material without aggregation, they can be easily transported by wind and water and deposited in water bodies, causing severe environmental impacts. Thus, using thermal infrared satellite images, the objective of the present study was to map, determine the formation process of the spots and estimate the predominant particle size fractions. The model used and validated with field and laboratory information, allowed the identification of surfaces with patches of white sand present in the study region and estimating their percentage in different classes. After filtering the samples with vegetation cover during the product calculation period, an R² of 0.78 was obtained. The removal of natural vegetation has contributed to the formation and expansion of sandy patches and erosion in the northwest region of Paraná.
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| format | Article |
| id | doaj-art-287c666821474fbd8bb2ac91be0d1a1b |
| institution | OA Journals |
| issn | 1519-1540 2236-5664 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | União da Geomorfologia Brasileira |
| record_format | Article |
| series | Revista Brasileira de Geomorfologia |
| spelling | doaj-art-287c666821474fbd8bb2ac91be0d1a1b2025-08-20T02:13:59ZengUnião da Geomorfologia BrasileiraRevista Brasileira de Geomorfologia1519-15402236-56642024-11-0125410.20502/rbg.v25i4.2614Sandy soil spots in northwestern Paraná: approaches for identification and quantificationLeonardo José Cordeiro Santos0José Guilherme Oliveira1Fabio Marcelo Breunig2M´árcia Regina Calegari3Elias Fernando Berra4Jonez Fidalski5Universidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáUniversidade Estadual do Oeste do ParanáUniversidade Federal do ParanáInstituto de Desenvolvimento Rural do Paraná - IAPAR-EMATER The predominance of sandy soils in the Northwest region of the state of Paraná, associated with the removal of natural vegetation, favored the development of patches of white sand on the surface without any aggregation. These spots are associated with the different types of land use existing in the region and the process of lateral soil transformation. As they constitute material without aggregation, they can be easily transported by wind and water and deposited in water bodies, causing severe environmental impacts. Thus, using thermal infrared satellite images, the objective of the present study was to map, determine the formation process of the spots and estimate the predominant particle size fractions. The model used and validated with field and laboratory information, allowed the identification of surfaces with patches of white sand present in the study region and estimating their percentage in different classes. After filtering the samples with vegetation cover during the product calculation period, an R² of 0.78 was obtained. The removal of natural vegetation has contributed to the formation and expansion of sandy patches and erosion in the northwest region of Paraná. https://rbgeomorfologia.org.br/rbg/article/view/2614SandificationSandy PatchesPedogenic ProcessesSatellite ImagesErosion |
| spellingShingle | Leonardo José Cordeiro Santos José Guilherme Oliveira Fabio Marcelo Breunig M´árcia Regina Calegari Elias Fernando Berra Jonez Fidalski Sandy soil spots in northwestern Paraná: approaches for identification and quantification Revista Brasileira de Geomorfologia Sandification Sandy Patches Pedogenic Processes Satellite Images Erosion |
| title | Sandy soil spots in northwestern Paraná: approaches for identification and quantification |
| title_full | Sandy soil spots in northwestern Paraná: approaches for identification and quantification |
| title_fullStr | Sandy soil spots in northwestern Paraná: approaches for identification and quantification |
| title_full_unstemmed | Sandy soil spots in northwestern Paraná: approaches for identification and quantification |
| title_short | Sandy soil spots in northwestern Paraná: approaches for identification and quantification |
| title_sort | sandy soil spots in northwestern parana approaches for identification and quantification |
| topic | Sandification Sandy Patches Pedogenic Processes Satellite Images Erosion |
| url | https://rbgeomorfologia.org.br/rbg/article/view/2614 |
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