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NFI4
forest area
rockfall SilvaProtect · crown closure
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
rockfall SilvaProtectcrown closure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a3.3252.5290.6581.2411.0450.21008.815
crowded113.9420.31014.3115.4196.1187.017167.13
normal120.2320.11013.3122.8277.8165.419169.63
loose44.167.1174.3212.4298.1150.85066.95
open48.3611.5137.2165.71811.4134.12288.25
scattered14.9119.1145.61910.3149.9148.21558.06
grouped crowded3.8238.1164.6212.1308.4152.92630.08
grouped normal4.5216.4175.4191.6358.0162.23028.08
heterogeneous11.6137.6162.0312.8272.7271.24127.98
total364.5192.7457.4534.3763.5532.07644.51
inside perimetern/a0.21000.0.0.0.0.21000.21000.0.0.658
crowded1.9322.3302.2301.9310.0.4.32112.712
normal1.4380.9502.5280.5581.7332.9269.914
loose0.0.0.21000.6580.8500.4710.4712.429
open0.21000.21000.6581.6350.4710.6583.624
scattered0.0.0.0.0.6580.8500.4711.0452.827
grouped crowded0.0.0.4710.4710.21000.21000.8502.032
grouped normal0.21000.21000.21000.0.0.21000.6581.438
heterogeneous0.0.0.4710.21001.0450.21000.21002.032
total3.9224.5217.3167.0163.82310.81337.37
outside perimetern/a0.4713.5241.6351.6352.5291.43810.914
crowded18.51029.3821.0913.5117.71533.97123.84
normal17.61021.4915.21111.2129.91421.3996.64
loose6.4189.4145.8186.8168.7157.51644.66
open7.11716.0115.61916.21014.91113.01272.75
scattered1.2416.0184.8209.91411.1139.11442.27
grouped crowded0.21006.6174.2222.6286.8179.71430.18
grouped normal0.4713.2253.8222.9269.2147.61627.18
heterogeneous2.6288.8151.0457.8154.7203.82328.68
total54.36104.2362.8472.5375.64107.13476.61
totaln/a3.9235.9182.2303.1263.7231.63520.410
crowded134.4351.9537.5620.8913.81145.35303.62
normal139.2342.3631.0714.51119.4929.77276.12
loose50.5616.81110.7139.91317.3108.715113.84
open55.5627.7813.41223.5826.7817.710164.43
scattered16.01115.11111.01321.0921.5918.310103.04
grouped crowded4.02215.1119.3144.92015.41113.41262.16
grouped normal5.1209.8149.4144.52117.41010.31356.56
heterogeneous14.11216.8113.22511.6127.6165.11958.56
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #860209/326540
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