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NFI4
forest area
avalanches SilvaProtect · regeneration cover
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura< 1%2.0310.21000.21002.529
1-9%27.881.4385.81835.07
10-25%30.371.0459.31440.66
26-50%22.591.0454.82028.38
51-75%19.3100.21004.22123.78
76-100%16.7100.8502.92620.49
total118.624.62027.27150.51
Eastern Jura< 1%1.1450.0.0.21001.341
1-9%5.6180.0.0.8506.417
10-25%6.8170.0.1.5388.415
26-50%10.4130.0.0.65811.012
51-75%7.1160.0.0.0.7.116
76-100%11.4120.0.1.04412.411
total42.430.0.4.12246.62
Western Plateau< 1%1.0440.0.0.0.1.044
1-9%10.2130.0.0.47110.613
10-25%12.7110.0.1.73514.310
26-50%9.2140.0.1.83311.012
51-75%6.5170.0.0.9507.416
76-100%4.4200.0.0.21004.620
total44.130.0.5.01949.12
Central Plateau< 1%2.1300.0.0.0.2.130
1-9%9.7130.0.1.93111.612
10-25%12.9110.0.2.32815.310
26-50%13.0110.0.3.62216.610
51-75%11.5120.0.1.24112.711
76-100%10.4130.0.0.47010.812
total59.730.0.9.41369.11
Eastern Plateau< 1%3.5230.0.0.0.3.523
1-9%12.0120.0.0.47112.412
10-25%22.580.0.0.65823.18
26-50%19.690.0.1.73321.39
51-75%20.790.0.2.42923.08
76-100%23.880.0.0.47124.28
total102.110.0.5.519107.61
Western Pre-Alps< 1%1.3380.0.1.6362.826
1-9%3.7231.6334.91910.113
10-25%5.8182.1317.01614.910
26-50%3.1250.6593.7237.416
51-75%3.2260.0.2.6285.918
76-100%0.4700.21001.5382.132
total17.694.52021.3843.33
Central Pre-Alps< 1%1.4380.21000.7502.329
1-9%15.2112.2309.91427.28
10-25%18.9101.83315.31135.96
26-50%9.0140.75810.11419.79
51-75%4.3210.4713.6248.315
76-100%2.4290.4713.1266.018
total51.255.61842.6599.42
Eastern Pre-Alps< 1%1.8330.7502.4274.919
1-9%10.8130.6588.31419.69
10-25%11.0130.21009.31420.59
26-50%5.8180.6587.91514.411
51-75%4.4210.4703.7238.515
76-100%2.3300.21001.9314.521
total36.162.72633.5672.32
Northwestern Alps< 1%0.6580.8500.3701.733
1-9%7.5163.6238.81419.89
10-25%8.3152.9267.41618.69
26-50%4.7201.5384.52110.613
51-75%1.4381.0442.4284.920
76-100%1.2410.6581.3413.126
total23.7810.41324.8758.93
Central Alps< 1%0.0.0.4710.4710.850
1-9%4.0211.7321.5347.314
10-25%4.1211.5352.6278.213
26-50%2.8260.9443.0256.716
51-75%0.8500.6580.4681.833
76-100%0.4710.0.0.21000.658
total12.1115.2188.11325.44
Northeastern Alps< 1%0.8511.3410.9442.925
1-9%4.1211.5384.2219.812
10-25%1.7332.4273.5237.615
26-50%1.2410.21002.9244.320
51-75%1.1400.8501.3373.223
76-100%0.5580.4720.9441.931
total9.5136.61613.81029.85
Southwestern Alps< 1%0.8501.1413.3245.319
1-9%17.21011.91224.0853.15
10-25%9.8148.21517.21035.16
26-50%4.1222.3298.71515.211
51-75%1.9330.0.2.6284.421
76-100%0.6580.21000.0.0.850
total34.3723.7855.84113.82
Southeastern Alps< 1%5.1203.2256.41714.611
1-9%23.596.71725.7855.95
10-25%18.6105.11915.91139.66
26-50%9.2142.3298.71520.39
51-75%5.3191.4383.42410.214
76-100%1.8330.21000.21002.330
total63.5519.01060.35142.82
Southern Alps< 1%2.9261.4386.71710.913
1-9%13.9126.61752.6573.14
10-25%9.1143.02527.4839.56
26-50%4.6212.23012.91219.710
51-75%1.2410.0.3.5234.720
76-100%0.4710.21001.4381.931
total32.0713.411104.53150.02
Switzerland< 1%24.499.31523.1956.76
1-9%165.0337.87149.33352.12
10-25%172.7328.28120.94321.82
26-50%119.3412.41374.95206.63
51-75%88.844.82032.38125.84
76-100%76.953.22515.51195.64
total646.9195.74415.921158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #862258/328589
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