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NFI4
forest area
time of last treatment (classes of 10 years) · site quality
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
time of last treatment (classes of 10 years)site quality1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/alow0.0.0.0.0.0.0.0.0.0.0.0.0.0.
moderate0.0.0.0.0.0.0.0.0.0.0.0.0.0.
good0.21000.0.0.0.0.0.0.0.0.0.0.2100
very good0.21000.0.0.0.0.0.0.0.0.0.0.2100
total0.4710.0.0.0.0.0.0.0.0.0.0.471
less than 10 years agolow13.01211.0134.0222.6284.1220.65835.37
moderate17.21022.997.31621.5922.695.51997.04
good83.8439.4727.880.8506.01811.413169.23
very good161.7311.4138.5150.6580.0.0.2100182.43
total275.8284.7447.6525.5832.6717.710484.02
11-20 years agolow5.7187.4163.8231.4383.2250.0.21.410
moderate5.91810.4146.91711.91220.193.32458.56
good27.2818.61015.6110.8505.5196.11873.85
very good37.175.8192.4290.5570.0.0.47146.36
total75.9542.2628.7814.51128.889.914200.03
21-30 years agolow3.0264.6212.6282.2305.0200.65817.910
moderate3.1269.5142.6286.81613.3126.01841.27
good9.7146.7177.0160.8503.2255.12032.68
very good13.4121.3412.2300.0.0.0.0.210017.111
total29.2822.0914.4119.71421.5911.913108.84
31-40 years agolow3.4242.5291.6352.0324.2221.24114.712
moderate3.1264.8202.3296.8179.7145.91832.68
good6.7175.1204.3210.6582.4296.01825.19
very good3.5231.1451.6350.21000.0.0.0.6.418
total16.81113.4129.8149.61416.21113.11278.85
41-50 years agolow1.6352.5281.8333.0262.4290.85012.113
moderate0.8505.5191.6356.3176.0186.71726.98
good3.4243.2253.0260.4711.0445.91816.911
very good3.5230.8500.6580.4710.0.0.0.5.419
total9.21412.1127.01610.1149.41413.41261.26
over 50 years agolow5.8189.8147.41613.91215.0116.41758.26
moderate2.0319.6145.91829.9716.41141.96105.74
good4.5216.7176.2180.5572.82635.0755.85
very good3.2250.8500.6580.21000.0.0.6575.419
total15.51127.0820.1944.5634.2784.04225.33
totallow32.4837.8721.1925.1833.779.514159.63
moderate32.1762.7526.6883.1388.1369.44362.02
good135.6379.7463.843.82221.1969.64373.52
very good222.7221.2916.0101.8310.0.1.538263.22
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 22.06.2020 #802790/269122
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