Journal
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
Volume 23, Issue 7, Pages 538-544Publisher
UNIV FEDERAL CAMPINA GRANDE
DOI: 10.1590/1807-1929/agriambi.v23n7p538-544
Keywords
fractal geometry; fractal dimension; singularity spectrum; geostatistics; soil management
Categories
Funding
- Fundacao de Amparo a Pesquisa e ao Desenvolvimento Cientifico e Tecnologico do Maranhao [FAPEMA -UNIVERSAL-001160/17, BD-02105/17]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES, Brazil) [001]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq, Brazil) [429354/2016-9, 307619/2016-8, 103961/2018-6]
Ask authors/readers for more resources
Soil resistance to penetration (PR) is an indirect measure of the state of soil compaction. Thus, the objective of this study was to characterize PR in vertical profiles in an area cultivated with sugarcane using multifractal models for different relief units. The experiment was carried out in an Oxisol with a clay texture, with 6.85 ha in the municipality of Coelho Neto (Maranhao state, Brazil), where 60 sampling points were demarcated. The area was divided into four relief units (Type A > 74 m, Type B from 71 to 74 m, Type C from 68 to 71 m and Type D from 65 to 68 m). The PR was measured at the 60 sampling points using an impact penetrometer, and the PR determined in the 0-0.60 m depth layer every 0.01 m. The multifractal analysis was performed considering the scale property of each profile and typified the singularity and Renyi spectra estimated using the current method. Multifractal analysis allowed the identification of patterns at different scales and with high heterogeneity. The multifractal behavior was represented by the singularity spectrum (alpha), versus f(alpha), and the generalized dimension (Dq). The multifractal analysis allowed the differentiation between the profiles of the relief units (Types A, B, C and D), resulting in an important tool for studies of soil resistance to penetration.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available