Home Sharing the science Assessment and mapping of desertification sensitivity in an insular sahelian mountain region – case study of the Ribeira Seca Watershed, Cape Verde

Assessment and mapping of desertification sensitivity in an insular sahelian mountain region – case study of the Ribeira Seca Watershed, Cape Verde Print

J. Tavares Cape Verde ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )

 

The aim of this study is to present the assessment and mapping of the environmental areas sensitive to desertification in an insular sahelian mountain region, in the catchment area of Ribeira Seca, island of Santiago, Cape Verde. Desertification is a threat for the global environment and it represents a serious ecological problem in Cape Verde. To fight both successfully, it requires an evaluation of its consequences and the building of cartography of the sensitivity for arid and semi-arid ecosystems. The model MEDALUS was the basis for this study with the use of six indicators of quality: climate, soil, vegetation, management, water runoff and social. Several sub-indicators were assigned to each indicator with weights variable between 1 (low) and 2 (high) according to the DESIRE Project (Research Theme 2). The geometric mean of each of the six indicators of quality was employed to produce the map of environmental sensitivity areas to desertification. The results of this study show that more than 50% of the watershed present obvious evidence of becoming a desertification area.

 

 

 

 
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Acknowledgement

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The DESIRE project was 
co-funded by the
European Commission,
Global Change and
Ecosystem.
Contract no: 037046 GOCE

DESIRE brought together the expertise of
26 international research institutes
and non-governmental organisations.

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