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NFI4
number of forest plots
processes in channels SilvaProtect · area of largest gap (aerial photo, 5 classes)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
processes in channels SilvaProtectarea of largest gap (aerial photo, 5 classes) %± %± %± %± %± %± %±
n/ano gap38.31.123.21.927.02.414.92.514.31.729.83.030.40.8
small gap37.61.131.32.133.22.627.73.230.22.324.72.934.00.8
medium gap11.50.720.71.815.82.023.03.021.72.121.42.715.70.6
large gap11.20.724.01.922.52.333.93.432.62.323.62.818.70.6
very large gap1.40.30.80.41.60.70.50.51.30.60.40.41.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
inside perimeterno gap38.13.622.11.927.22.514.31.911.91.831.61.923.80.9
small gap42.63.736.12.235.52.733.52.525.42.432.92.033.71.0
medium gap8.82.120.11.814.42.021.72.222.12.214.91.517.60.8
large gap9.92.220.31.821.42.328.52.437.42.619.91.623.30.9
very large gap0.60.61.40.51.50.72.00.73.11.00.70.31.50.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno gap40.34.844.97.432.27.418.45.322.54.849.67.534.42.5
small gap34.84.727.26.734.87.639.36.724.95.141.47.333.32.5
medium gap18.13.812.54.822.86.79.54.124.35.06.63.716.51.9
large gap6.82.513.25.010.34.930.76.425.65.02.42.314.71.9
very large gap0.0.2.32.20.0.2.12.12.71.90.0.1.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno gap38.41.023.61.327.41.714.91.414.01.232.11.628.20.6
small gap37.91.033.41.534.31.832.01.927.71.631.21.633.90.6
medium gap11.60.720.11.315.61.421.11.722.11.516.21.316.50.5
large gap10.90.721.71.321.31.530.51.933.91.619.91.320.20.5
very large gap1.20.21.20.31.50.51.50.52.20.50.60.31.30.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 10.07.2020 #875905/342237
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