Growth (forestry)

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In forestry , growth stands for the annual, periodic, total or even average increase in the forest stock , which results from the growth of the trees . It is determined by the growth in height and thickness. The increase in solid wood , which is given in solid cubic meters per hectare (VFm / ha), is of particular forest importance .

Germany

According to the Third National Forest Inventory (2012) , an average of 121.6 million VFm of wood grew annually in German forests between 2002 and 2012 . The average annual increase was 10.9 VFm per hectare. The Douglas fir stands showed the highest growth rates with 18.9 VFm per hectare and year, followed by the fir stands with 16.3 VFm per hectare and year and the spruce stands with 15.3 VFm per hectare and year. In the case of deciduous trees, the beech stands achieved the highest growth rates with 10.3 VFm per hectare and year.

Tree species group Average annual growth (2002–2012) a Average annual growth per hectare (2002–2012) b
Book 18.3 million VFm / a 10.3 VFm / ha * a
Oak trees 9.4 million VFm / a 8.3 VFm / ha * a
ALN c 7.3 million VFm / a 6.4 VFm / ha * a
ALH d 6.6 million VFm / a 8.9 VFm / ha * a
Total deciduous trees 41.5 million VFm / a 8.7 VFm / ha * a
Spruce trees 45.7 million VFm / a 15.3 VFm / ha * a
Pine trees 24.2 million VFm / a 9.5 VFm / ha * a
Larches 3.4 million VFm / a 10.7 VFm / ha * a
Douglas firs 3.9 million VFm / a 18.9 VFm / ha * a
Fir trees 3.0 million VFm / a 16.3 VFm / ha * a
Total conifers 80.1 million VFm / a 12.8 VFm / ha * a
All tree species 121.6 million VFm / a 10.9 VFm / ha * a
a Storage cubic meters with bark (VFm) per year (a)
b Storage cubic meters with bark (VFm) per hectare (ha) and year (a) (calculated pure stand)
c Other deciduous trees with short lifespan (ALN): birch, service tree, alder, poplar , bird cherry, rowanberry, bird cherry, willow, wild fruit
d Other deciduous trees with a long lifespan (ALH): maple, ash, chestnut, linden, whitebeam, service tree, robinia, elm

literature

  • Horst Kramer and Alparslan Akça: Guide to forest measurement . 3rd, expanded edition. Sauerländer, Frankfurt am Main 1995, ISBN 3-7939-0830-5 .
  • Federal Ministry of Food and Agriculture (BMEL, Ed.): The Forest in Germany - Selected Results of the Third National Forest Inventory , Berlin 2014. Online version (PDF; 5 MB)

Individual evidence

  1. ↑ a b c Results database of the Third National Forest Inventory (2012) . Retrieved September 1, 2015.