Fractal parameters of pore space from CT images of soils under contrasting management practices

Muñoz Ortega, Francisco Javier; San Jose Martinez, Fernando y Caniego Monreal, Francisco (2014). Fractal parameters of pore space from CT images of soils under contrasting management practices. "Fractals-Complex Geometry Patterns And Scaling in Nature And Society", v. 22 (n. 3); pp.. ISSN 0218-348X. https://doi.org/10.1142/S0218348X14400118.

Descripción

Título: Fractal parameters of pore space from CT images of soils under contrasting management practices
Autor/es:
  • Muñoz Ortega, Francisco Javier
  • San Jose Martinez, Fernando
  • Caniego Monreal, Francisco
Tipo de Documento: Artículo
Título de Revista/Publicación: Fractals-Complex Geometry Patterns And Scaling in Nature And Society
Fecha: Septiembre 2014
Volumen: 22
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Matemática Aplicada a la Ingeniería Agronómica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Soil structure plays an important role in flow and transport phenomena, and a quantitative characterization of the spatial heterogeneity of the pore space geometry is beneficial for prediction of soil physical properties. Morphological features such as pore-size distribution, pore space volume or pore?solid surface can be altered by different soil management practices. Irregularity of these features and their changes can be described using fractal geometry. In this study, we focus primarily on the characterization of soil pore space as a 3D geometrical shape by fractal analysis and on the ability of fractal dimensions to differentiate between two a priori different soil structures. We analyze X-ray computed tomography (CT) images of soils samples from two nearby areas with contrasting management practices. Within these two different soil systems, samples were collected from three depths. Fractal dimensions of the pore-size distributions were different depending on soil use and averaged values also differed at each depth. Fractal dimensions of the volume and surface of the pore space were lower in the tilled soil than in the natural soil but their standard deviations were higher in the former as compared to the latter. Also, it was observed that soil use was a factor that had a statistically significant effect on fractal parameters. Fractal parameters provide useful complementary information about changes in soil structure due to changes in soil management. Read More: http://www.worldscientific.com/doi/abs/10.1142/S0218348X14400118?queryID=%24%7BresultBean.queryID%7D&

Más información

ID de Registro: 35639
Identificador DC: http://oa.upm.es/35639/
Identificador OAI: oai:oa.upm.es:35639
Identificador DOI: 10.1142/S0218348X14400118
URL Oficial: http://www.worldscientific.com/doi/abs/10.1142/S0218348X14400118
Depositado por: Memoria Investigacion
Depositado el: 24 Jun 2015 17:19
Ultima Modificación: 30 Sep 2015 22:56
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