DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 5-6/1973 str. 19 <-- 19 --> PDF |
17. Stellin g wer f D. A. (1966.)´- Practica? application of aerial photographs in forestry and other vegetation studies, ITC Publications B 36, Delft, 23 str. 18. Stellin g wer f D. A. (1969): Kodak Ektachrome Infrared Aero Film for forestry purposes, ITC Publications B 54, Delft, 17 str. 19. Wea r J. F., Pop e R. B., Or r P. W, (1966.): Aerial photographic techniques for est´mating damage by insects in western forests, Pacific Northw. For. and Range Exp. Sta., Portland Ore., 79 str. Summary PRESENT POSSIBILITIES IN APPLYING PHOTO-INTERPRETATION IN FOREST PROTECTION Development of the technology of aerial photography-cameras, films (notably in colour) — has made possible a more intensive application of methods of photo- interpretation in forest protection, particularly in establishing and inventorying damage to forest vegetation through the action of various different abiotic and biotic factors. The author contributes a survey of recent works in individual parts of the world (U. S. A., Central Europe, U. S. S. R.) which confirm the purpose and economy of this appl´cation. Under European conditions photo-interpretation is bound to find its application notably in the event of overpopulation of individual insects pests and diseases. In industrially developed areas aerial photographs have been applied with success to establish and inventory damages to the forest vegetation brought on by the action of poisonous waste gases from industrial plants. Photo-interpretation comes especially into evidence in the vast coniferous forests of the Northern Hemisphere, as well as in the tropics. In the introductory part are surveyed structure and properties of colour films, particularly falsecolour films, as well as the characteristics of the spectral reflectance and the mode of image formation of the healthy and damaged forest trees and stands. |