The effect of forest characteristics on ALS-based inventory results
نویسندگان
چکیده
The management planning system of Finnish private forests is currently changing from mainly field inventory–based into one that makes use of airborne laser scanning (ALS) data, aerial photographs and a sample of field plots. In the traditional system every stand of the inventoried area is visited and some relascope sample plots measured within the stand. This is time consuming, expensive, and prone to error. In a study by Haara and Korhonen (2004) the tree species-specific relative mean volume RMSEs varied from 29% (Scots pine) to 65% (deciduous species trees), whereas the relative RMSE of stand mean total volume was 25%. Currently, the new ALS-based method is being tested in pilot projects. However, more should be known of its suitability in different types of forests.
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