Shadow Analysis Field Measurements Related to Soil Surface Rougness

Tarquis Alfonso, Ana Maria; García Moreno, Rosario; Diaz Alvarez, Maria Cruz; Paz González, Antonio; Vidal Vazquez, Eva y Saa Requejo, Antonio (2010). Shadow Analysis Field Measurements Related to Soil Surface Rougness. En: "19th World Congress of Soil Science, Soil Solutions for a Changing World", 01/08/2010 - 06/08/2010, Brisbane, Australia.. ISBN 978-0-646-53783-2.

Descripción

Título: Shadow Analysis Field Measurements Related to Soil Surface Rougness
Autor/es:
  • Tarquis Alfonso, Ana Maria
  • García Moreno, Rosario
  • Diaz Alvarez, Maria Cruz
  • Paz González, Antonio
  • Vidal Vazquez, Eva
  • Saa Requejo, Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 19th World Congress of Soil Science, Soil Solutions for a Changing World
Fechas del Evento: 01/08/2010 - 06/08/2010
Lugar del Evento: Brisbane, Australia.
Título del Libro: DVD-ROM Proceedings of the 19th World Congress of Soil Science, Soil Solutions for a Changing World
Fecha: 2010
ISBN: 978-0-646-53783-2
Materias:
Palabras Clave Informales: Shadow analysis, soil surface roughness, chain method, pin meter, erosion
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

The present study aimed to fill the need for a reliable, low-cost and convenient method to measure soil surface roughness. Based on the interpretation of micro-topographic shadows, this procedure is primarily designed for use in the field. The principle underlying shadow analysis is the direct relationship between SSR 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 express field readings recorded by pin meter and chain set methods. The tests were conducted on 4-m 2 sandy clay loam plots divided into 1-m 2 subplots tilled with three different implements: chisel, tiller and roller. The highly significant correlation between the statistical indexes and shadow analysis results proved that both variability (CV) and dispersion (SD) are accommodated by the new method. The method also showed a good proportionality with the chain roughness (CR). The SSR obtained for the different methods is mainly related to the presence of aggregates. The shadow analysis simplifies the interpretation of soil surface roughness and shortens the time involved in field operations by a factor ranging from 4 to 20

Más información

ID de Registro: 8104
Identificador DC: http://oa.upm.es/8104/
Identificador OAI: oai:oa.upm.es:8104
Depositado por: Memoria Investigacion
Depositado el: 16 Sep 2011 11:25
Ultima Modificación: 20 Abr 2016 17:00
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