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INT-BILAT-BILAT-ordningen

Kina - Measuring foliar mass and crown density using airborne laser scanning as a measure of forest health

Tildelt: kr 0,15 mill.

The project shall initiate a research co-operation on remote of forest health between leading forest research institutes in Norway (Norwegian forest research institute, Skogforsk and University of life sciences, UMB/INA) and China (Chinese academy of Fore stry, CAF). The idea is to use airborne laser-scanning with high spatial resolution, to locate single trees, and estimate the mass and density of foliage in the forest canopy layer as a forest health variable. We believe that this has good chances of succ ess, and to our knowledge the idea is genuinely new, and needs to be tested. Foliar mass and density correspond with ground-based visual assessments of defoliation, which has been a major forest health variable in forest monitoring programmes in Europe an d North America. The range of applications from laser-scanning is increasing quickly at present, however, in forestry the main application has so far mainly been related to timber volume estimation. Also, we will approach satellite data for an eventual up -scaling of the laser derived data. Both in Norway and China satellite SAR data are available for forest areas. Skogforsk and CAF have co-operated for five years as participants in the IMPACTS project (http://www.impacts.net.cn/). The project we are appl ying for now is a further development of our co-operation. A new project will benefit largely from the existing networks, monitoring areas and data already generated in the IMPACTS project. IMPACTS have run for the period 2000-2004, and an application for a three year prolongation is under consideration. IMPACTS is a bi-lateral project between Norway and China. The university UMB has a leading role internationally on airborne laser-scanning for forestry applications.

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INT-BILAT-BILAT-ordningen

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