Service Communautaire d'Information sur la Recherche et le Développement - CORDIS

WP(9) Potentials of energy wood - Spatial analysis

- Woody biomass is an energy source used regularly in some industries, mainly in the paper and pulp industry, using chips, sawdust and black liquor produced.

- A test region in south Portugal was identified, including regions Baixo Alentejo and Alentejo Litoral, representing about 1 385 thousand hectares.

- A GIS-based data base was developed based on military maps, statistical information, land use maps, chemical analysis, field trials and an evaluation of operational costs.

- A survey was made over the residues produced in agriculture and the main species producing woody biomass were identified.

- The wood chains identified were the logs and small branches produced in prunnings, mainly in the olive trees and vines.

- The main wood chain in Portugal is forestry, where about 1 173 dry ktonnes are produced every year, but only 16% is effectively used for energetic purposes.
- The results show that the production of residues in the perennial crops is around 677 dry tonnes per year, but only 11% is used for energetic purposes.
- The total potential biomass production in the region Baixo Alentejo and Alentejo is around 0,78 dry Mtonnes per year, including biomass residues produced in forestry and in perennial crops.

Key innovative features of the results:
- GIS technology is today available for broad audience. There are different distributors of software and there are also open source software available.
- Spatially distributed data is still exclusive and in many cases not distributed for free. High licence fees are the main barrier to increase the use of GIS for analysis.

Current status:
- Counties presenting larger potential are located in the coastal areas, mainly because of residues produced in cork oak and eucalyptus stands. County of Odemira presents larger potential, where the available potential is above 2000 TJ/year.
- Nevertheless, some inner counties present also large available biomass production potential, mainly because of pruning of olive trees and vines in vine yards.
- The results show that the total potential of biomass residues inside the region Baixo Alentejo Alentejo Litoral is around 13 562 TJ per year.
- If we take in consideration that a part of it has is used firewood, we can conclude that 7 436 TJ per year are available for other energy applications.

Expected benefits:
- Over the last ten years, the Geographical Information Systems (GIS) have been largely improved, allowing more accurate analysis.
- Using GIS technology considerable improvements have been reached in biomass potential estimations and in optimisation of the logistics chain.

Dissemination of results from this work package has been carried out by: 1) Publishing the results at Echaine web-page, 2) Partners presentations at two by Echaine consortium organised international workshops (Bulgaria and Russia), 3) Partners presentations at national and international seminars and work shops, 4) Scientific papers.

Informations connexes

Reported by

Rua Pedro Soares
7801-902 BEJA
See on map