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NFI4
forest area
processes in channels 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
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.4380.21001.0451.6351.24110.714
21-40%7.2165.5196.8177.2179.9145.11941.77
41-60%22.9920.4911.31312.41219.4108.61595.04
61-80%66.5531.8716.91011.11324.088.615159.03
over 80%269.3239.7627.288.41514.61114.011373.12
total371.3198.8462.4540.2669.5437.57679.61
inside perimeter0-20%0.21002.1311.0440.6580.4711.0455.319
21-40%0.0.5.3192.4283.9236.1183.92221.610
41-60%0.85011.2137.01615.21121.4911.11366.75
61-80%4.32130.6814.91125.3825.5827.88128.44
over 80%30.5851.4538.7625.4813.81167.94227.62
total35.87100.5364.0470.4367.24111.63449.62
outside perimeter0-20%0.0.0.4710.21000.0.0.0.0.0.0.658
21-40%0.21000.21000.4710.8501.0450.0.2.628
41-60%0.21001.0450.0.1.4383.0260.8506.418
61-80%3.8232.3301.2414.2214.9201.83318.210
over 80%16.7115.5196.1184.1205.9186.51744.96
total20.9109.4157.91510.51314.9119.11472.75
total0-20%5.5193.9221.4371.6352.0322.23016.611
21-40%7.41611.0139.61411.91317.0109.01465.95
41-60%23.9932.6718.31029.0843.9620.59168.13
61-80%74.6564.7533.0740.6654.4538.26305.52
over 80%316.5196.6372.0337.9634.4688.33645.71
total427.91208.71134.32121.12151.62158.321201.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #859564/325895
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