Tillering degree
The degree of tillering is a technical term from forestry. It relates to the bulk stock of a stand and is given in tenths of the full stocking. The value for full stocking is given by a forest yield table. The input variables are the age of the tree in years and the height of the tree in meters to determine the performance class . Since the determination of the wood supply requires several work steps, in practice the base area of the stand , which is easier to determine and is directly related to the supply, is usually used for the calculation .
If the actual wood supply corresponds to the wood supply to be expected according to the yield table (or the actual stand area of the area to be expected), the degree of tillering is 1.0 . After heavy thinning or damaging events, it is usually lower. In areas with thinning residues, it can reach values above 1.0.
BRD: In terms of tax law, the target / actual comparison of wood stocks or the floor area is permitted.
The "natural degree of forest cover" refers to the ratio of the current base area of a stand to the maximum base area in the unforested comparative stand.
From stocking is Bestockungsfaktor distinguished: The Bestockungsfaktor is the stocking is based, and this is capped at 1.0. Thus the tillage factor cannot exceed 1.0. For tillering degrees below 0.8, an increase in clearing in the order of magnitude of up to 10% can be included (increase of tillering factor by 5% to 10%). The tillering factor derived in this way can then be used in the forest assessment.
See also: Stand Density Index , Blumesche Formula
literature
- Horst Kramer, Alparslan Akça: Guide to forest measurement . 3rd, expanded edition. Sauerländer, Frankfurt am Main 1995, ISBN 3-7939-0830-5
- Guidelines for the measurement of usage rates (according to the decree of the Ministry of Finance Baden-Württemberg of May 12, 1956 S 2143 - 379)