°Landschaft |
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NAM |
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XUNITE |
XAUGM8495 |
XDIM8495 |
XAUGM7283 |
XDIM7283 |
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Arbres isolés
et groupes d'arbres |
Nombre |
15600 |
-4182 |
6130 |
-5400 |
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Haies |
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m |
191000 |
-35000 |
54100 |
-20800 |
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Arbres fruitiers |
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Nombre |
34132 |
-133803 |
32770 |
-87550 |
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Mise sous
terre de cours d'eau |
m |
85000 |
-85000 |
167000 |
0 |
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Correction/
endiguement de cours d'eau |
m |
27000 |
0 |
25000 |
0 |
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Berges et digues |
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m |
75000 |
-37000 |
# |
# |
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Legende: |
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XAUGM |
Zunahme/ Augmentation |
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XDIM |
Abnahme/ Diminution |
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XUNITE |
Einheit/ Unité de mesure |
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Utilisation du
sol en hectares |
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NAM |
1979/85 |
1992/97 |
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**Total Suisse |
4128476 |
4128476 |
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*Surfaces boisées |
1254612 |
1271645 |
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forêt (sans la forêt buissonnante) |
1086940 |
1102156 |
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Forêt buissonnante |
57345 |
60514 |
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autres surfaces boisées |
110327 |
108975 |
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*Surfaces agricoles utiles |
1573293 |
1525119 |
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arboriculture fruitière, viticulture, horitculture |
70937 |
60952 |
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prés, terres arables et pâturages |
946695 |
926366 |
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alpages |
555661 |
537801 |
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*Surfaces d'habitat et d'infrastructure |
246409 |
279095 |
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Aires de bâtiment et aires industrielles |
1.14 |
28.58 |
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Surfaces d'infrastructure spéciale |
16961 |
16133 |
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Espaces verst et lieux de détente |
13578 |
15860 |
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Surfaces de transport |
81498 |
89331 |
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*Surfaces improductives |
1054162 |
1052617 |
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Lacs |
142274 |
142235 |
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Cours d'eau |
31569 |
31732 |
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végétation improductive |
261312 |
263051 |
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surfaces sans végétation |
619007 |
615599 |
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Accroissement des surfaces
protégées |
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NAM |
XGF |
XSGF |
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1961 |
0.4 |
0 |
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1977 |
0.4 |
4.14 |
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1983 |
0.4 |
12.89 |
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1991 |
0.44 |
13.08 |
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1992 |
0.7 |
15.5 |
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1994 |
0.92 |
15.43 |
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1996 |
1.1 |
19.65 |
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1998 |
1.14 |
21.15 |
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2000 |
1.15 |
21.14 |
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2001 |
1.55 |
21.05 |
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