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NFI4
forest area
indicator of groundwater protection zone (2013)
unit of reference: protection forest region
unit: %
unit of evaluation: 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) %± %± %± %± %± %± %±
no groundwater protection zone84.80.894.90.793.00.988.01.296.50.686.11.189.60.4
groundwater protection zone15.20.85.10.77.00.912.01.23.50.613.91.110.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 17.06.2020 #875310/341642
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