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Monitoring soil sealing in Guadarrama River basin, Spain, and its potential impact in agricultural areas
Monitoreo de sellado del suelo en la cuenca del río Guadarrama, España, y su impacto potencial en áreas agrícolas

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Pérez González, Mª Eugenia and García Rodríguez, María del Pilar (2016) Monitoring soil sealing in Guadarrama River basin, Spain, and its potential impact in agricultural areas. Agriculture, 6 (1). pp. 1-11. ISSN 2077-0472

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Abstract

This study analyzes soil sealing and its repercussions in the loss of fertile soils, which are more appropriate for agriculture use. Also, soil sealing increases flood risk. The main objective is to estimate soil loss by sealing in the Guadarrama River Basin (Madrid, Spain) between 1961 and 2011. The combination of digital rocessing (Normalized Difference Vegetation Index (NDVI), principal
components and convolution filters) of satellite imagery with the digital terrain model helps to detect risk areas and allows quick updating of sealed soil mapping. The supervised classifications of the images were used to estimate the actual soil loss by sealing (9% in 2011) in the Guadarrama River Basin and the types and agrologic classes that have been lost. Soil loss occurs to a greater extent in highly permeable soils (sands) and in the most fertile soils. The main sealed soil associations are luvisols (alfisols), regosols (entisols) and cambisols (inceptisols).


Item Type:Article
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Revista en Open Access

Uncontrolled Keywords:Soil sealing, Impact, Remote sensing, Madrid
Palabras clave (otros idiomas):Sellado de suelos, Impacto, Teledetección, Madrid
Subjects:Humanities > Geography > Cartography
Humanities > Geography > Physical geography
Humanities > Geography > Geographical information systems
ID Code:35885
Deposited On:23 Feb 2016 13:00
Last Modified:03 Aug 2016 10:53

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