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NFI4
forest area
stand stability · degree of cover of assured regeneration
unit of reference: economic region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
stand stability
criticalless stablestabletotal
economic regiondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juraless than 1%0.0.0.21000.6570.850
1-4%0.0.1.7331.2412.926
5-9%0.21003.2243.5236.916
10-25%0.0.3.3246.3179.614
26-50%0.0.1.5354.1225.618
51-75%0.0.1.2413.1254.321
76-100%0.21000.6581.2412.032
total0.47111.71219.9932.07
Eastern Juraless than 1%0.0.0.0.0.21000.2100
1-4%0.0.0.0.0.6580.658
5-9%0.0.0.8500.0.0.850
10-25%0.0.0.7581.1441.735
26-50%0.0.0.0.0.6580.658
51-75%0.0.0.4710.6581.044
76-100%0.0.0.21000.21000.471
total0.0.2.1313.3245.419
Western Plateauless than 1%0.0.0.0.0.0.0.0.
1-4%0.0.0.0.0.21000.2100
5-9%0.0.0.21000.0.0.2100
10-25%0.0.0.8501.7352.528
26-50%0.0.0.8500.6581.437
51-75%0.0.0.21000.21000.570
76-100%0.0.0.0.0.21000.2100
total0.0.2.1312.9265.019
Central Plateauless than 1%0.0.0.21000.21000.471
1-4%0.0.0.6570.4711.044
5-9%0.0.0.21000.6580.850
10-25%0.21001.9311.4373.523
26-50%0.0.1.5351.7333.224
51-75%0.0.0.21000.4710.658
76-100%0.0.0.21000.0.0.2100
total0.21004.8194.6209.613
Eastern Plateauless than 1%0.0.0.21000.0.0.2100
1-4%0.0.0.0.0.0.0.0.
5-9%0.0.0.6570.21000.850
10-25%0.0.0.3710.7501.141
26-50%0.0.1.2410.21001.338
51-75%0.21001.4380.8502.429
76-100%0.0.0.21000.0.0.2100
total0.21003.9221.9316.018
Western Pre-Alpsless than 1%0.21001.1410.31001.636
1-4%0.21001.9311.3383.423
5-9%0.0.1.9321.6363.523
10-25%0.21005.7184.82010.713
26-50%0.0.1.5382.3303.823
51-75%0.0.1.3411.0452.330
76-100%0.0.0.0.0.6590.659
total0.55813.41111.91225.86
Central Pre-Alpsless than 1%0.21000.4710.6581.141
1-4%0.21003.1252.0325.419
5-9%0.8505.5192.8279.114
10-25%1.4389.7147.61618.710
26-50%0.21002.8275.3208.315
51-75%0.21002.4291.4384.022
76-100%0.7501.1450.4712.330
total3.72325.1820.2949.05
Eastern Pre-Alpsless than 1%0.5572.0291.9314.419
1-4%0.7583.5232.1306.317
5-9%0.0.1.5351.9313.423
10-25%0.6585.7183.82310.113
26-50%0.7583.4254.7208.815
51-75%0.21000.9500.8501.933
76-100%0.0.0.8500.7501.535
total2.72817.9915.81036.45
Northwestern Alpsless than 1%0.0.1.3370.4711.733
1-4%0.4712.8263.0256.217
5-9%0.0.4.2212.8267.116
10-25%0.4716.8174.32111.612
26-50%0.6581.8332.7275.219
51-75%0.6580.6571.0442.330
76-100%0.0.0.8490.8501.735
total2.13118.4915.11035.65
Central Alpsless than 1%0.21000.6570.4711.240
1-4%0.21000.9440.21001.336
5-9%0.0.1.7320.7482.425
10-25%0.6571.8311.9304.320
26-50%0.4712.8261.0454.220
51-75%0.21000.0.0.6570.850
76-100%0.0.0.0.0.0.0.0.
total1.5357.9144.81814.28
Northeastern Alpsless than 1%0.0.1.5350.9502.328
1-4%0.0.2.9251.4384.320
5-9%0.0.1.3410.7492.032
10-25%0.4713.0263.3236.616
26-50%0.4701.5350.7502.626
51-75%0.4701.8330.4722.527
76-100%0.21000.6580.0.0.849
total1.33712.4117.41521.17
Southwestern Alpsless than 1%0.9442.1302.8265.818
1-4%0.9459.6139.91420.49
5-9%1.3387.6168.31517.210
10-25%1.63513.21110.11324.98
26-50%2.6275.4192.92610.913
51-75%0.8500.4710.4711.635
76-100%0.0.0.0.0.0.0.0.
total8.21538.3634.4681.03
Southeastern Alpsless than 1%1.4386.7177.01715.011
1-4%0.4718.31510.41319.110
5-9%1.0456.3176.61713.911
10-25%1.2418.51511.81221.59
26-50%2.1303.8234.22210.114
51-75%0.21001.0451.0452.330
76-100%0.0.0.0.0.21000.2100
total6.31734.6741.3682.14
Southern Alpsless than 1%0.8507.4164.12112.312
1-4%1.83315.71114.01131.57
5-9%1.63517.21010.31329.18
10-25%3.02618.7109.91431.67
26-50%1.0457.3163.02611.313
51-75%0.6582.0310.8503.324
76-100%0.0.1.4380.21001.635
total8.81569.8442.16120.72
Switzerlandless than 1%4.22123.6919.21047.16
1-4%4.82051.1646.76102.64
5-9%5.02052.3639.9797.24
10-25%9.51480.3568.75158.53
26-50%7.91635.5733.9877.35
51-75%3.32413.81212.71329.88
76-100%1.2415.8194.52111.513
total35.97262.42225.73524.01
© WSL, Swiss National Forest Inventory, 11.07.2020 #845661/311992
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