Discriminación visual y digital de suelos de baja calidad agrícola a partir de imágenes Landsat

Authors

  • Mª. A. Pérez González , Dpto. Análisis Geográfico Regional y Geografía Física, Fac. Geografía e Historia. Universidad Complutense de Madrid,
  • Mª. P. García Rodríguez , Dpto. Análisis Geográfico Regional y Geografía Física, Fac. Geografía e Historia. Universidad Complutense de Madrid

DOI:

https://doi.org/10.26754/ojs_geoph/geoph.2005461342

Keywords:

Soil quality, salinity, Landsat images, La Mancha, Spain

Abstract

This study is based on multitemporal Landsat's images in order to identify low agricultural quality soils in Castilla-La Mancha Autonomous Community. This low class, within soil quality indices, includes, among others, saline soils and floodable areas. These soils can be discriminated through TM and ETM satellite images, with field-work and laboratory support. For saline soils identification, different physical and chemical properties of surface samples have been analysed, correlating these data with Normalised Difference Vegetation Index (NDVi). This Index, used for different dates, has been quite useful in order to discriminate halophytic vegetation, despite recording lesser digital values than in cultivated land, mainly irrigated areas.

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How to Cite

Pérez González, M. A., & García Rodríguez, M. P. (2016). Discriminación visual y digital de suelos de baja calidad agrícola a partir de imágenes Landsat. Geographicalia, 46, 99-115. https://doi.org/10.26754/ojs_geoph/geoph.2005461342