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Memorias de investigación
Artículos en revistas:
Effect of reservoir tillage on rainwater harvesting and soil erosion control under a developed rainfall simulator
Año:2013
Áreas de investigación
  • Agricultura,
  • Ingenierías
Datos
Descripción
Soil erosion is a serious environmental threat in the Mediterranean region due to torrential rainfalls, and it contributes to the degradation of agricultural land. Techniques such as rainwater harvesting may improve soilwater storage and increase agricultural productivity,which could result inmore effective land usage. Reservoir tillage is an effective systemof harvesting rainwater, but it has not been scientifically evaluated like other tillage systems. Its suitability for the conditions in Spain has not been determined. To investigate and quantifywater storage from reservoir tillage and how it could be adapted to improve infiltration of harvested rainwater, a laboratory-scale rainfall simulatorwas developed. Rainfall characteristics, including rainfall intensity, spatial uniformity and raindrop size, confirm that natural rainfall conditions are simulatedwith sufficient accuracy. The simulatorwas autocontrolled by a solenoid valve and three pressure nozzleswere used to spray water corresponding to five rainfall intensities ranging from 36 to 112 mm h?1 for 3 to 101-year return periodwith uniformity coefficients between 83 and 94%. In order to assess the reservoir tillage method under surface slopes of 0, 5, and 10%, three soil scooping devices with identical volume were used to make depressions in the following forms: a) truncated square pyramid, b) triangular prism, and c) truncated cone. These depressions were compared to a control soil surface with no depression. For the loam soil used in this study, results showthat reservoir tillage was able to reduce soil erosion and surface runoff and significantly increase infiltration. There was significant difference between the depressions and the control. Compared to the control, depression (a) reduced surface runoff by about 61% and the sediment yield concentration by about 79%.
Internacional
Si
JCR del ISI
Si
Título de la revista
Catena
ISSN
0341-8162
Factor de impacto JCR
1,889
Información de impacto
Datos JCR del año 2011
Volumen
DOI
Número de revista
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1
Hasta la página
10
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Participantes
  • Autor: Haytham Mohamed Salem Mohamed (UPM)
  • Autor: Constantino Valero Ubierna (UPM)
  • Autor: Miguel Angel Muñoz Garcia (UPM)
  • Autor: Maria Gil Rodriguez (UPM)
  • Autor: Pilar Barreiro Elorza (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: LPF-TAGRALIA: Técnicas Avanzadas en Agroalimentación
  • Grupo de Investigación: Hidráulica del riego
  • Departamento: Ingeniería Rural
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