Results
Intensified plantation forestry applied to 50% of the spruce stands had increased the
extinction risk relatively strongly compared to the status quo scenario (i.e., no intensive
plantation forestry) for all species after 150 years (Fig. 2). For four of the five species,
most of the expected extinctions took place 50–150 years from the intensification of forestry.
The sun-exposure specialist was an exception, as most extinctions took place already
during the first 50 years.
Table 4 Mean volume of suitable Norway spruce dead wood (diameter[10 cm, age10 years) across the
landscape and change in annual growth of harvestable volume compared to the status quo (0% intensive
forestry) for scenarios assuming varying proportions of intensive plantation forestry over a period of
100 years
Intensive plantation
forestry (%)
Conventionally
managed (%)
Set aside (%) Dead wood in
managed forest
(m3/ha)
Dead wood
(m3/ha)
Change in
harvestable
volume (%)
0 95 5 2.08 2.32 0
5 87.86 7.14 2.08 2.32 ?2.9
10 80.72 9.28 2.08 2.32 ?5.7
25 59.3 15.7 2.08 2.32 ?14.3
50 23.6 26.4 2.08 2.32 ?28.6
More forest is set aside to keep mean dead wood volumes constant at the landscape-scale with an increasing
proportion of intensive plantation forestry (Scenario 3)
Biodivers Conserv (2011) 20:2867–2882 2875
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