Home Mação, Portugal Desertification risk assessment maps

Desertification risk assessment maps Print

Source: extracted from Karavitis, C., Kosmas, C. et al. (submitted article) An expert system towards assessing desertification risk using indicators. Environmental Management

 

The main processes or causes in the Mação study site are:
  • forest fires and
  • water erosion in agricultural areas.

 

For these processes, the Desertification Risk Assessment Tool needed data to calculate 431 indicators in 31 map units. Using data from the WOCAT QM database, the required indicators were estimated and imported to the Assessment Tool.

 

The procedure was applied to all the map units in the study site and the DRI values calculated are shown in Table 1.

 

Table 1: Desertification risk calculation per map unit

 

The DRI values were mapped for each of the 31 polygons (Map 1)

 

Map 1: Desertification risk index (DRI) 

Map 2: Degree of land degradation (as assessed using the WOCAT mapping method)

 

The DRI map was compared with the WOCAT QM of the same area (Map 2). It can be seen that the rate of degradation and the land conservation measures seen in the WOCAT map correspond closely to the DRI values, with the highest values of DRI coinciding with agronomic (vegetation soil cover) measures and the erosion due to water loss of the top soil.

 

More details ... about the use of the Desertification Risk Assessment Tool to calculate the Desertification Risk Index (DRI)
»Using the Desertification Risk Assessment Tool

 

 
fig_8.jpg.jpg

Acknowledgement

fp6 logo 3 50 x 43
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.

This website does not necessarily
represent the opinion of the
European Commission. The European
Commission is not responsible for
any use that might be made of the
information contained herein.

Citing website content

For the terms under which the content 
of this website may be used see 
»Disclaimer, copyright and privacy

When referenceing page contents
please cite as Brandt, C. J. (ed). 
2012. "page title". DESIRE Project 
Harmonised Information System.
DESIRE Consortium.  
www.desire-his.eu. 

If citing a deliverable use the authors'
names, date and title as given on the 
cover page and add "available at 
www.desire-his.eu".

Follow us