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NFI4
forest area
rockfall SilvaProtect · degree of cover of assured regeneration
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juraless than 1%3.6230.0.0.8504.421
1-4%15.3110.4712.52818.210
5-9%18.7101.5355.41925.68
10-25%34.170.6589.01443.76
26-50%22.390.21005.41927.98
51-75%16.9100.8503.52321.29
76-100%9.7140.0.2.03211.713
total120.623.42328.67152.71
Eastern Juraless than 1%2.3300.0.0.21002.528
1-4%4.2210.0.0.6584.820
5-9%2.7270.0.0.8503.623
10-25%10.8130.31001.53712.511
26-50%8.5150.0.0.6589.114
51-75%5.1200.0.1.0446.118
76-100%8.3140.0.0.4718.714
total42.030.31005.11947.42
Western Plateauless than 1%2.3300.0.0.0.2.330
1-4%6.3170.0.0.21006.517
5-9%7.3160.0.0.21007.516
10-25%13.4110.0.2.52815.910
26-50%7.2150.0.1.4378.714
51-75%5.2190.0.0.5705.618
76-100%2.6270.0.0.21002.826
total44.330.0.5.01949.22
Central Plateauless than 1%4.8190.0.0.4715.219
1-4%6.0170.0.1.0447.016
5-9%4.9190.0.0.8505.718
10-25%12.6110.0.3.52316.110
26-50%13.8110.0.3.22417.09
51-75%11.9120.21000.47112.511
76-100%6.0170.0.0.21006.217
total60.020.21009.41369.71
Eastern Plateauless than 1%4.7200.0.0.21004.919
1-4%9.2140.0.0.0.9.214
5-9%10.4130.0.0.85011.212
10-25%26.380.0.1.14127.47
26-50%21.390.0.1.33822.68
51-75%15.8100.0.2.42918.210
76-100%15.2100.0.0.210015.410
total102.910.0.6.018108.91
Western Pre-Alpsless than 1%1.5350.0.1.6363.025
1-4%3.0260.0.3.4236.417
5-9%2.4300.0.3.5235.818
10-25%5.6190.210010.51316.210
26-50%2.7280.0.3.8236.517
51-75%3.0270.0.2.3305.319
76-100%0.21000.0.0.6590.851
total18.490.210025.6744.23
Central Pre-Alpsless than 1%1.9320.0.1.1413.025
1-4%8.7150.0.5.41914.111
5-9%10.4140.21008.91519.69
10-25%18.4100.0.18.71037.16
26-50%8.5150.21008.11616.910
51-75%4.8200.4713.7238.815
76-100%1.6350.0.2.3303.923
total54.450.85048.25103.42
Eastern Pre-Alpsless than 1%3.8220.0.4.4198.214
1-4%6.4170.0.6.31712.812
5-9%6.2180.0.3.4239.614
10-25%10.3130.21009.91320.49
26-50%6.4180.21008.61515.211
51-75%3.4250.0.1.9335.319
76-100%1.8330.21001.3383.424
total38.360.65835.8674.82
Northwestern Alpsless than 1%2.1310.0.1.7333.722
1-4%4.0220.6585.61810.213
5-9%4.4210.6586.41711.512
10-25%9.8141.43810.11321.48
26-50%3.0250.0.5.2198.215
51-75%1.7350.21002.1313.922
76-100%0.8500.6581.0452.529
total25.883.52432.1661.43
Central Alpsless than 1%0.21000.6580.6581.337
1-4%2.9250.4710.9444.320
5-9%2.0310.6561.9304.419
10-25%4.1211.0443.3238.413
26-50%2.8261.0453.2246.915
51-75%0.8500.21000.6571.635
76-100%0.0.0.0.0.0.0.0.
total12.7103.72210.51126.94
Northeastern Alpsless than 1%2.0300.4731.9314.320
1-4%2.1300.9453.3246.416
5-9%1.7350.3711.6363.723
10-25%3.3241.0455.7179.913
26-50%1.0450.21002.5273.622
51-75%1.0440.6591.9313.523
76-100%0.3710.0.0.8491.140
total11.4123.52317.7832.54
Southwestern Alpsless than 1%2.2300.21005.6188.115
1-4%8.9151.33719.1929.37
5-9%10.3142.03215.21127.68
10-25%11.4132.32922.6836.46
26-50%5.1201.2419.71416.011
51-75%1.7350.21001.4383.325
76-100%0.6580.0.0.0.0.658
total40.267.21673.73121.12
Southeastern Alpsless than 1%7.7160.47114.61122.79
1-4%17.7101.33817.81036.87
5-9%9.8140.65813.31223.79
10-25%20.991.83319.8942.46
26-50%7.9160.21009.91417.910
51-75%4.7200.0.2.3306.917
76-100%0.8500.0.0.21001.045
total69.544.42177.84151.62
Southern Alpsless than 1%5.1190.210012.11217.410
1-4%8.3153.52328.0839.96
5-9%7.7162.62726.5836.87
10-25%10.1143.22528.4841.76
26-50%4.7201.04510.31316.011
51-75%1.2410.21003.1254.521
76-100%0.4710.21001.4381.931
total37.5711.013109.73158.32
Switzerlandless than 1%44.271.83445.2691.34
1-4%103.148.41594.24205.73
5-9%98.948.41588.84196.13
10-25%191.1311.913146.53349.62
26-50%115.144.22273.05192.43
51-75%76.952.82727.09106.74
76-100%48.561.04510.51460.15
total677.9138.77485.311201.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #860589/326920
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