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Memorias de investigación
Ponencias en congresos:
Shadow analysis: a method for measuring soil surface roughness
Año:2009
Áreas de investigación
  • Química,
  • Agricultura
Datos
Descripción
Erosion potential and the effects of tillage can be evaluated from quantitative descriptions of soil surface roughness. The present study therefore aimed to fill the need for a reliable, low-cost and convenient method to measure that parameter. Based on the interpretation of micro-topographic shadows, this new procedure is primarily designed for use in the field after tillage. The principle underlying shadow analysis is the direct relationship between soil surface roughness and the shadows cast by soil structures under fixed sunlight conditions. The results obtained with this method were compared to the statistical indexes used to interpret field readings recorded by a pin meter. The tests were conducted on 4-m2 sandy loam and sandy clay loam plots divided into 1-m2 subplots tilled with three different tools: chisel, tiller and roller. The highly significant correlation between the statistical indexes and shadow analysis results obtained in the laboratory as well as in the field for all the soil-tool combinations proved that both variability (CV) and dispersion (SD) are accommodated by the new method. This procedure simplifies the interpretation of soil surface roughness and shortens the time involved in field operations by a factor ranging from 12 to 20.
Internacional
Si
Nombre congreso
EGU General Assembly 2009
Tipo de participación
960
Lugar del congreso
Viena
Revisores
Si
ISBN o ISSN
1029-7006
DOI
Fecha inicio congreso
19/04/2009
Fecha fin congreso
24/04/2009
Desde la página
1
Hasta la página
1
Título de las actas
Geophysical Research Abstracts
Esta actividad pertenece a memorias de investigación
Participantes
  • Participante: A. Paz (Universidad de la Coruña)
  • Autor: Antonio Saa Requejo (UPM)
  • Autor: M. Cruz Diaz Alvarez (UPM)
  • Autor: Ana Maria Tarquis Alfonso (UPM)
  • Autor: Rosario García Moreno (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Valorización de Recursos
  • Grupo de Investigación: Grupo de Automatización en Señal y Comunicaciones (GASC)
  • Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM)
  • Departamento: Edafología
  • Departamento: Matemática Aplicada a la Ingeniería Agronómica
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