Abstract
This paper presents a technique of forest sampling using a new panoramic lens. One to three photographs are taken from a levelled platform on a tripod at the sample plot centre with a base length corresponding roughly to a tree diameter. These photos can be analysed monoscopically, in part also stereoscopically. The present study deals primarily with the determination of the polar coordinates and the stem diameter of test trees. This panoramic sampling technique can aid in making a forest inventory more expedient. It can be used for combined aerial and terrestrial surveys as well as for the terrestrial control of pure aerial surveys. This new method is higher rated for its documentary value than conventional terrestrial photographs. Also, it serves to detect qualitative changes in forest stands at periodic intervals.
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