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NFI5
forest area
protection forest against hillslope debris flows/landslides (2022) · type of next treatment
regional demarcation: protection forest region
unit: 1000 ha
evaluation area: accessible forest without shrub forest NFI1-NFI5
grid: 1.4 km grid, subgrids 1-5
state 2018/26
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern Alps Southeastern AlpsSouthern AlpsSwitzerland
protection forest against hillslope debris flows/landslides (2022)type of next treatment1000 ha±%1000 ha±%1000 ha±%1000 ha±%1000 ha±%1000 ha±%1000 ha±%
n/an/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
possible intervention in >20 years0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending0.0.0.0.0.0.0.0.0.0.0.0.0.0.
thinning0.0.0.0.0.0.0.0.0.0.0.0.0.0.
secondary felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.
final felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.
selection felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.
thinning of mountain forest0.0.0.0.0.0.0.0.0.0.0.0.0.0.
coppice cut0.0.0.0.0.0.0.0.0.0.0.0.0.0.
conversion0.0.0.0.0.0.0.0.0.0.0.0.0.0.
transformation0.0.0.0.0.0.0.0.0.0.0.0.0.0.
sanitary felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.
thinning of continuous cover forest0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending of forest edge0.0.0.0.0.0.0.0.0.0.0.0.0.0.
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments0.0.0.0.0.0.0.0.0.0.0.0.0.0.
single tree harvesting0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tree removal to maintain infrastructre safety0.0.0.0.0.0.0.0.0.0.0.0.0.0.
total0.0.0.0.0.0.0.0.0.0.0.0.0.0.
insiden/a4.5275.7253.53210.3184.2299.01937.110
possible intervention in >20 years0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending1.8451.8452.2410.0.1.1571.1587.921
thinning3.5310.6713.2331.4500.7710.41009.819
secondary felling0.7711.5501.4500.31001.0581.5506.524
final felling0.31000.0.0.0.0.0.0.0.0.41000.771
selection felling3.2330.6710.0.0.0.0.0.0.0.3.830
thinning of mountain forest3.2334.4282.73514.2156.8237.82139.19
coppice cut0.0.0.0.0.0.0.41000.0.1.9442.340
conversion0.0.0.0.0.0.0.0.0.0.0.0.0.0.
transformation0.0.0.0.0.0.0.0.0.0.0.0.0.0.
sanitary felling0.31000.41000.31000.41000.0.0.0.1.450
thinning of continuous cover forest0.7711.4503.1330.0.0.0.0.0.5.126
tending of forest edge0.0.0.0.0.7710.0.0.41000.0.1.157
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments0.0.0.0.0.41000.41000.0.1.1581.845
single tree harvesting0.0.0.0.0.0.0.0.0.0.0.41000.4100
tree removal to maintain infrastructre safety1.4500.41000.31000.0.0.7710.31003.234
total19.61316.91417.71427.31114.91523.911120.35
outsiden/a59.2750.8830.21136.3952.6865.86294.83
possible intervention in >20 years0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending52.0716.41511.3181.1586.6230.0.87.26
thinning113.4519.41313.4161.8454.2291.450153.74
secondary felling23.0129.6198.0212.0412.0411.15845.78
final felling12.9162.0411.4500.31001.0580.0.17.714
selection felling25.61111.6171.7450.41000.0.0.0.39.29
thinning of mountain forest4.92738.3915.91522.71232.71019.613134.05
coppice cut0.7710.41000.0.0.0.0.0.2.2413.333
conversion0.7711.1580.41000.0.0.0.0.0.2.141
transformation0.7710.41000.0.0.0.0.7710.0.1.845
sanitary felling25.4113.2342.4380.31000.7711.94534.010
thinning of continuous cover forest49.987.12211.2180.0.1.8450.0.70.07
tending of forest edge5.1263.7311.6501.1580.7710.0.12.317
planting2.5380.7710.0.0.0.0.0.0.0.3.233
agrosilvicultural treatments7.6222.5381.5501.8450.31001.05814.816
single tree harvesting3.1330.7710.41000.0.0.0.0.7714.927
tree removal to maintain infrastructre safety4.2291.2580.7710.41001.1583.13310.618
total390.81169.24100.0568.17104.4596.84929.21
totaln/a63.7756.5833.71046.5856.7774.85331.93
possible intervention in >20 years0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending53.8718.21413.4161.1587.6211.15895.26
thinning116.9520.01316.6143.2334.9271.845163.44
secondary felling23.71211.1189.4192.4383.0332.73852.28
final felling13.3162.0411.4500.31001.0580.410018.513
selection felling28.81012.2171.7450.41000.0.0.0.43.09
thinning of mountain forest8.02142.8818.61336.9939.5927.310173.14
coppice cut0.7710.41000.0.0.41000.0.4.1305.626
conversion0.7711.1580.41000.0.0.0.0.0.2.141
transformation0.7710.41000.0.0.0.0.7710.0.1.845
sanitary felling25.8113.6322.7360.7710.7711.94535.410
thinning of continuous cover forest50.688.52014.3150.0.1.8450.0.75.16
tending of forest edge5.1263.7312.4411.1581.1580.0.13.416
planting2.5380.7710.0.0.0.0.0.0.0.3.233
agrosilvicultural treatments7.6222.5381.8452.1410.31002.14116.615
single tree harvesting3.1330.7710.41000.0.0.0.1.1585.326
tree removal to maintain infrastructre safety5.6251.6501.0580.41001.7453.43113.816
total410.31186.13117.8595.45119.25120.731049.51
© WSL, Swiss National Forest Inventory, 05.03.2024 #1271242/452992

Table citation

Abegg, M.; Ahles, P.; Allgaier Leuch, B.; Cioldi, F.; Didion, M.; Düggelin, C.; Fischer, C.; Herold, A.; Meile, R.; Rohner, B.; Rösler, E.; Speich, S.; Temperli, C.; Traub, B.,
2023: Swiss national forest inventory - Result table No. 1271242. Birmensdorf, Swiss Federal Research Institute WSL

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