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NFI4b
stem number of dead wood
mechanical strength of wood (3 classes) · cavity by woodpecker
unit of reference: production region
unit: n/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
restriction: tree status = standing dead
grid: grid NFI4 2009-2013
state 2009/13
mechanical strength of wood (3 classes)
fresh / firm woodrotten woodmouldering / mull woodtotal
cavity by woodpecker n/ha± % n/ha± % n/ha± % n/ha± %
cavity present0.9130.6140.3191.89
cavity absent18.054.481.31223.74
total18.954.971.61125.54
© WSL, Swiss National Forest Inventory, 15.07.2015 #202409/188647
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