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NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%3.9233.2251.6351.0452.6281.24113.612
21-40%6.4186.7175.2198.6157.5165.31939.87
41-60%15.51113.9127.6168.01613.9126.61765.65
61-80%34.1720.3913.7128.11518.4108.215102.94
over 80%310.4150.7630.779.51422.7912.212436.21
total370.3194.9458.8535.3765.1533.67658.11
inside perimeter0-20%0.0.0.8500.21000.21000.21000.4711.833
21-40%0.0.1.0450.4711.0451.2410.8504.421
41-60%0.21002.0321.4384.3213.2251.63512.612
61-80%0.8504.0223.2255.6187.9153.82225.39
over 80%3.72312.8129.41412.6126.8167.21652.56
total4.72020.6914.61123.7819.4913.81196.84
outside perimeter0-20%0.0.2.3302.0311.0451.2412.1318.515
21-40%0.21002.1311.8333.0266.8173.52317.411
41-60%1.2418.2155.3198.31513.8128.51545.46
61-80%4.92020.0109.51414.91117.81019.5986.55
over 80%46.1657.6538.4628.6721.4972.74264.82
total52.4690.1457.0555.8461.15106.33422.72
total0-20%3.9236.3173.8222.2304.0223.62323.99
21-40%6.6179.8147.41612.61215.6119.51461.66
41-60%16.81124.1914.31120.7931.0716.710123.64
61-80%39.8744.3626.4828.6744.2631.67214.83
over 80%360.21121.1378.6350.7550.9592.23753.61
total427.31205.61130.42114.82145.62153.721177.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #863464/329795
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