Publication: An evaluation of the MEDALUS ESA index (environmental
sensitivity to land degradation), from regional to plot scale
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Date
2020-04-03
Authors
Lavado Contador, J. F ; Schnabel, S ; Gómez Gutiérrez, A.
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Grupo de Investigación GeoAmbiental, Universidad de Extremadura
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Publisher
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DOI
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info:eu-repo/semantics/other
Description
Abstract
An assessment of the sensitivity to land degradation have been carried out for the region of
Extremadura, SW Spain, by means of the modelling approach developed in the European
Commission funded MEDALUS project (Mediterranean Desertification and Land Use) which
identifies such areas on the basis of an index (ESA index) that incorporates data on
environmental quality (climate, vegetation, soil) as well as on anthropogenic factors
(management). Two maps of environmental sensitivity to degradation with different legend
resolution (4 and 8 classes of sensitivity) have been made.
The results of the model were validated at different spatial scales, i.e.; regional and farm
scales. True field data on degradation-related variables at the different spatial scales have
been used in order to undertake the validation procedures. Selected farms covering different
physiographical and socioeconomic characteristics were used to gather data at farm scale.
Data gathered from the National Inventory of Soil Erosion was also used to validate the
model at the regional scale.
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Este ítem está sujeto a una licencia Creative Commons. http://creativecommons.org/licenses/by-nc-nd/4.0/