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NFI3
forest area
rockfall SilvaProtect · degree of cover (aerial photo, 5 classes)
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
state2004/06
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3400.0.0.0.1.340
21-40%2.7270.0.0.21002.926
41-60%7.9150.21001.0459.114
61-80%17.2100.21003.72321.19
over 80%89.433.02523.68116.02
total118.623.42328.47150.51
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%38.640.31005.11944.02
total41.230.31005.11946.62
Western Plateau0-20%0.8490.0.0.0.0.849
21-40%0.8490.0.0.0.0.849
41-60%2.9260.0.0.0.2.926
61-80%3.7230.0.0.7584.321
over 80%35.940.0.4.32140.24
total44.130.0.5.01949.12
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.0450.0.0.21001.240
61-80%5.3190.0.0.5585.818
over 80%51.830.21008.51460.52
total59.730.21009.21369.11
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%5.5180.0.0.5586.117
over 80%91.320.0.5.51996.82
total101.610.0.6.018107.61
Western Pre-Alps0-20%0.6700.0.1.0491.639
21-40%0.6700.0.0.6701.148
41-60%3.3260.0.4.4217.715
61-80%3.9220.21005.0199.114
over 80%9.2130.0.14.61023.86
total17.690.210025.6743.33
Central Pre-Alps0-20%0.6580.0.0.6571.140
21-40%2.7260.0.1.2413.822
41-60%5.5180.21002.0307.715
61-80%10.9130.21008.81419.99
over 80%31.670.47134.8666.83
total51.250.85047.4599.42
Eastern Pre-Alps0-20%1.0450.0.0.7571.735
21-40%1.6350.0.0.9492.529
41-60%3.5240.0.3.0266.517
61-80%8.0150.0.5.21913.211
over 80%21.980.65825.9748.54
total36.160.65835.6672.32
Northwestern Alps0-20%1.4380.21001.4373.025
21-40%3.2250.0.1.4374.720
41-60%4.8200.21003.3248.315
61-80%5.0200.6588.71414.311
over 80%9.3142.42816.9928.76
total23.783.52431.7658.93
Central Alps0-20%0.6580.0.0.6581.241
21-40%2.1300.0.0.0.2.130
41-60%2.0300.6580.6573.224
61-80%2.7250.6582.4285.717
over 80%4.6182.1306.41513.28
total12.1113.3249.91125.44
Northeastern Alps0-20%0.0.0.0.0.9430.943
21-40%1.4380.0.1.2412.627
41-60%1.7330.4702.1304.120
61-80%2.7270.5583.6236.816
over 80%3.7212.4289.41215.48
total9.5133.32417.0829.85
Southwestern Alps0-20%1.0450.4710.8502.230
21-40%8.2150.0.4.02212.213
41-60%7.8161.53811.21320.59
61-80%7.9161.93118.6928.47
over 80%9.3143.22437.9650.55
total34.377.01672.53113.82
Southeastern Alps0-20%2.4290.0.1.4383.823
21-40%7.3160.21007.91615.411
41-60%13.9120.0.16.81030.87
61-80%17.8102.23023.4843.46
over 80%22.191.43826.1849.55
total63.553.82375.64142.82
Southern Alps0-20%1.0450.21002.2303.424
21-40%5.1190.6583.7229.314
41-60%6.0180.6588.91415.511
61-80%8.2152.62820.4931.27
over 80%11.7136.81771.9490.43
total32.0710.813107.13150.02
Switzerland0-20%12.4130.8509.61422.89
21-40%38.870.85020.91060.66
41-60%63.153.62453.56120.24
61-80%100.448.915101.44210.73
over 80%430.5123.09290.92744.31
total645.2137.17476.311158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #861530/327861
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