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NFI4
forest area
groundwater protection zones (April 2013)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
groundwater protection zones (April 2013) %± %± %± %± %± %±
n/a75.21.492.90.894.60.793.30.684.71.389.30.4
groundwater protection zone S10.10.10.10.10.20.10.10.10.30.20.10.0
groundwater protection zone S25.50.72.90.51.70.42.50.45.60.83.30.2
groundwater protection zone S316.01.23.80.62.50.52.40.47.81.05.70.3
no groundwater protection zone, but rated as S20.60.20.30.21.00.31.70.31.60.51.10.1
no groundwater protection zone, but rated as S30.0.0.0.0.0.0.0.0.0.0.0.
area of contribution instead of protection zone S32.50.50.0.0.0.0.0.0.0.0.40.1
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 17.06.2020 #874847/341179
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