The "Horizontoscope": a fascinating device for silviculturist, especially in high mountains. Annex: Use of "horizontoscope" in the Albertville forest division (Savoie, France)
1995
Schuetz, J.P. (Ecole Polytechnique Federale de Zuerich (Suisse). Chaire de Sylviculture) | Brang, P.
English. The author synthetises the ways by which light can be measured in forest, and shows that they are not completely satisfactory. In the cases of high elevation stands, he shows that the number of hours of direct sunshine during the May-June period is a pertinent parameter with a simple device, the "horizontoscope", which is described. Examples of the use of horizontoscope aimed at designing regeneration felling in high elevation of Norway spruce stands are given
Show more [+] Less [-]French. L'auteur presente les methodes de mesure de la lumiere en foret et leurs imperfections. Dans le cas de la haute montagne, il montre que la croissance des jeunes semis peut etre predite a l'aide d'un parametre simple, la duree d'ensoleillement direct en mai-juin. Il presente l'horizontoscope, appareil permettant d'estimer simplement et avec precision cette duree. Les resultats de l'utilisation de l'horizontoscope pour l'ouverture de trouees de regeneration dans les pessieres de haute altitude sont commentees
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