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NFI4
forest area
urgency of next treatment (interview survey) · lower/higher altitudinal zones
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
urgency of next treatment (interview survey)lower/higher altitudinal zones1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
0-1 yearlowlands46.263.7243.7231.0451.0451.73557.26
high altitude areas8.2158.9154.5212.6282.4291.63528.18
total54.3612.6128.1153.6233.4243.22585.35
2-5 yearslowlands132.5313.61212.7122.2303.1243.524167.53
high altitude areas20.0919.41013.5125.81811.2135.91875.75
total152.4333.0726.288.11514.2119.314243.32
6-10 yearslowlands98.2421.4913.9112.1302.4297.916145.83
high altitude areas20.2931.4714.21111.31212.7126.11795.94
total118.4452.8528.0713.41115.11114.011241.83
11-20 yearslowlands35.379.4148.7144.0212.2308.01567.65
high altitude areas10.31332.6714.01114.91012.4126.81691.14
total45.6642.0622.7918.9914.61114.811158.73
> 20 yearslowlands29.987.0176.91712.31212.01237.76105.74
high altitude areas11.31339.0623.3842.8662.0444.06222.43
total41.2745.9630.2755.1574.0481.74328.12
totallowlands342.1155.1445.8521.6820.6858.74543.81
high altitude areas70.04131.3269.4477.43100.7364.44513.31
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 22.06.2020 #799049/265381
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