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NFI3

forest area: urgency of next treatment (interview survey) · time of last treatment (classes of 10 years) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
urgency of next treatment (interview survey)time of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
0-1 yearless than 10 years ago34.677.0164.0210.9451.1410.47147.96
11-20 years ago9.6141.4350.4710.3710.5580.47112.612
21-30 years ago4.5200.5580.371..0.7500.4716.417
31-40 years ago0.7500.21000.2100..0.21000.5581.832
41-50 years ago0.21000.471..0.3710.2100..1.141
over 50 years ago1.4350.2100..0.9450.4710.21003.024
total51.069.8134.9192.4273.0241.83172.85
2-5 yearsless than 10 years ago119.0322.8812.8111.7315.4182.527164.23
11-20 years ago27.487.2164.1201.0413.2231.93044.96
21-30 years ago12.2123.3231.9300.3711.2381.14120.09
31-40 years ago2.0303.1241.0410.9450.7500.4718.015
41-50 years ago0.21000.5580.5580.3711.1410.4713.024
over 50 years ago1.3381.1410.7502.2281.8312.3289.314
total162.0337.9621.186.51613.3118.514249.42
6-10 yearsless than 10 years ago89.0427.3817.1103.9219.3132.626149.33
11-20 years ago17.7109.9135.9173.9216.3161.43545.16
21-30 years ago9.2147.4153.6222.0292.5271.43526.18
31-40 years ago2.3283.4231.2381.0411.8311.23811.013
41-50 years ago1.1411.8320.3712.0290.7500.7506.716
over 50 years ago1.4352.0301.2382.6262.3284.12113.511
total120.8351.8529.4715.51022.8811.512251.82
11-20 yearsless than 10 years ago28.3816.81011.4124.41911.4123.42375.75
11-20 years ago4.7206.0176.9152.9247.0150.55828.08
21-30 years ago5.4184.5203.5222.6263.5221.43520.99
31-40 years ago1.1412.7261.9301.5332.6261.23811.113
41-50 years ago1.3381.1411.4352.2281.1411.8318.814
over 50 years ago1.3381.8321.6334.4192.1295.81717.010
total42.0632.9726.7718.1927.7714.111161.43
> 20 yearsless than 10 years ago12.21217.51010.31312.31113.3119.01474.65
11-20 years ago11.01312.8126.5165.51711.9127.51555.26
21-30 years ago12.8127.8156.0177.71513.11112.11259.55
31-40 years ago7.6157.4155.5177.3155.9178.21442.06
41-50 years ago4.7206.1173.6227.0153.1239.11433.77
over 50 years ago7.21621.7915.61029.0728.7769.84172.03
total55.5573.3447.6568.8476.04115.72436.92
totalless than 10 years ago283.2291.4455.7523.2840.5617.89511.71
11-20 years ago70.3537.4623.8813.71128.9711.812185.83
21-30 years ago44.1623.5815.41012.61121.0916.410133.03
31-40 years ago13.71116.8109.91310.71211.21211.51273.85
41-50 years ago7.4169.9135.91711.9116.11711.91253.26
over 50 years ago12.61226.7819.1939.1635.2682.23214.82
total431.21205.71129.72111.32142.82151.621172.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 10.11.2014 #140861/127235
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