Spectral characterisation of land surface composition to determine soil erosion within semiarid rainfed cultivated areas

Thomas Schmid*, Alicia Palacios-Orueta, Sabine Chabrillat, Eyal Bendor, Antonio Plaza, Manuel Rodriguez, Margarita Huesca, Marta Pelayo, Cristina Pascual, Paula Escribano, Victor Cicuendez

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

6 Scopus citations

Abstract

In a Mediterranean semiarid area in Central Spain, with dominant rainfed agriculture, hyperspectral airborne data, supported by field spectroscopy have been obtained, allowing a spectral identification of bare soil with the corresponding erosion stages. The definition of soil erosion stages is based on a spectral characterization supported by morphological, physical and chemical features of contrasted soil surfaces as a result of soil loss. Different soil erosion stages were defined within two bare-soil sites representing the soil variability of the area, and where such stages are spatially represented. The validation of selected image derived endmebers was a key step to carry out a partial unmixing for determining soil erosion stages. A preliminary spatial distribution of advanced and intermediate erosion stages was obtained for the most representative soil types.

Original languageEnglish
Pages7082-7085
Number of pages4
DOIs
StatePublished - 2012
Event2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, Germany
Duration: 22 Jul 201227 Jul 2012

Conference

Conference2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012
Country/TerritoryGermany
CityMunich
Period22/07/1227/07/12

Keywords

  • Soil erosion
  • hyperspectral data
  • rainfed agriculture
  • semiarid
  • unmixing

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