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Open AccessArticle

Monitoring Soil Sealing in Guadarrama River Basin, Spain, and Its Potential Impact in Agricultural Areas

by Eugenia Pérez *,† and Pilar García
Department Regional Geographical Analysis and Physical Geography, Faculty of Geography and History, University Complutense of Madrid, Madrid 28040, Spain
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Yanbo Huang
Agriculture 2016, 6(1), 7;
Received: 15 September 2015 / Revised: 19 January 2016 / Accepted: 21 January 2016 / Published: 30 January 2016
(This article belongs to the Special Issue Remote sensing for crop production and management)
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 processing (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). View Full-Text
Keywords: soil sealing; impact; remote sensing; Madrid soil sealing; impact; remote sensing; Madrid
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MDPI and ACS Style

Pérez, E.; García, P. Monitoring Soil Sealing in Guadarrama River Basin, Spain, and Its Potential Impact in Agricultural Areas. Agriculture 2016, 6, 7.

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