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NFI4
forest area
indicator of groundwater protection zone (2013) · degree of mixture
unit of reference: protection forest region
unit: %
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
indicator of groundwater protection zone (2013)degree of mixture %± %± %± %± %± %± %±
no groundwater protection zonen/a0.70.22.40.51.50.52.50.62.20.50.90.31.50.2
pure conifer forest17.70.846.81.537.11.860.91.976.91.529.51.538.30.6
mixed conifer forest20.70.920.71.323.21.67.21.05.70.86.30.915.80.5
mixed broadleaf forest17.50.812.21.014.31.35.70.95.50.86.60.912.10.4
pure broadleaf forest28.01.012.91.017.31.411.61.36.10.941.51.721.60.5
total84.70.895.10.793.41.087.91.396.40.784.81.389.30.4
groundwater protection zonen/a0.20.10.40.20.10.10.0.0.30.20.10.10.20.1
pure conifer forest4.20.42.40.52.80.69.31.22.80.64.50.74.10.3
mixed conifer forest4.90.50.90.31.60.50.70.30.30.21.00.32.30.2
mixed broadleaf forest3.20.40.60.20.70.30.70.30.30.20.70.31.50.2
pure broadleaf forest2.80.40.70.31.30.41.50.50.0.8.91.02.60.2
total15.30.84.90.76.61.012.11.33.60.715.21.310.70.4
totaln/a0.90.22.80.51.60.52.50.62.40.61.00.31.70.2
pure conifer forest21.90.949.21.539.91.870.21.879.71.433.91.642.40.6
mixed conifer forest25.60.921.61.324.81.67.81.16.00.97.30.918.10.5
mixed broadleaf forest20.80.912.81.015.01.46.41.05.80.87.30.913.60.4
pure broadleaf forest30.81.013.61.118.61.513.11.36.10.950.41.624.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 17.06.2020 #874918/341250
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