Estimation of the above earth biomass based on laserscanning and forest inventory data (Laser-Wood)


2009-08-01 – 2012-01-31

The Project ¿Laser-Wood - Estimation of the above earth biomass based on laserscanning and forest inventory data¿ aims at the development of methods for the generation of high resolution digital geodata regarding growing stock and biomass potential. The methods use laserscanning data in point and raster format as well as forest inventory data to derive long term strategic energy conclusions. The high resolution geodata are calculated via correlation analyses and semi-empirical algorithms implemented in an information system and provide further information like height of dominant trees, basal area or stem number. In sum this information are core requirements for future energy model regions.¿Laser-Wood¿ supports the development of such energy model regions by offering new climate friendly energy strategies. The estimation of growing stock and biomass potential in Austrian forests and related concepts of use lead to specific regional energy cascades with relevant material and energetic flows. The reduction of costs for the provision of energy resources, the mobilisation of wood in local forests and the optimisation of timber harvesting chains based on the project results are important advantages.For the calculation of the growing stock tree species specific models are developed, which allow a regionalisation of the existing forest inventory by the integration of large coverage laserscanning data. The derivation of the biomass potential uses allometric functions, which base on the forest parameters for tree crowns, heights and species extracted from laserscanning data.Beside the standard airborne laserscanning data, which are increasingly covering the provinces of Austria, ¿Laser-Wood¿ uses fullwave laserscanning data. Additionally to the geometry of each 3D point physical parameters are available, which describe the reflexion properties of the captured objects and facilitate a tree species differentiation.To be able to use the potential of point based forest parameter derivates a specific information system for laserscanning data has to be implemented, which allows the processing of large coverage and amounts of point data. Further on the database concepts need to be adapted for the analysis of fullwave laserscanning data and its attributes. This information system will be distributed between the project partners and the project users.In cooperation with the project partners Stand Montafon Forstfonds, Landesforstdirektion Tirol and Öbf-AG different options for the usage of the derived forest parameters are discussed regarding the exploitation. In Tyrol the project results will be integrated into a web-based forest database. This database comprises all forest enterprises, forest tending plans, fostering measures and is the virtual market place for wood trade. The project results are statistically implemented in the database and the derived raster datasets can be viewed in the associated Web-GIS Application. From the conception point of view for location studies of biomass power plants the decision makers currently relay on statistical information on a regional level. Via geospatial sharpening of the biomass potentials on a stand level a much more precise planning base can be delivered. Further on the information regarding accessibility, geographical obstacles (slope) can directly derived from the laserscanning data. They have to be analysed in combination with the economical, ecological frame conditions with respect to property and environmental restrictions.

Project manager

Project members

  • Lothar Eysn

Partners

  • Bundesforschungs- und Ausbildungszentrum für Wald, Naturgefahren und Landschaft
  • Stand Montafon Forstfonds
  • Laserdata GmbH
  • alpS - Zentrum für Naturgefahren- und Risikomanagement GmbH