HydroBASINS lev08 watershed · #2080495300
Bassin de Lech
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 6 administrative regions across 2 countries : Bludenz, Bregenz, Imst, Landeck, Oberallgäu +1
Sub-basin area
1 009km²
Upstream area
1 009,2km²
Discharge
28,73m³/s
Mean elev.
1 736m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 756.3 km²74.7% of basin
- Bludenz115.3 km²11.4% of basin
- 72.6 km²7.2% of basin
- 48.6 km²4.8% of basin
- Bregenz17.9 km²1.8% of basin
- 1.1 km²0.1% of basin
18 intersecting protected areas
Tiroler Lech
IUCN Not ReportedSpecial Protection Area (Birds Directive)
34.73 km² overlap
Tiroler Lech
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
34.73 km² overlap
Tiroler Lech
IUCN VNature Park
34.71 km² overlap
Nature Reserve
34.71 km² overlap
Ruhegebiet Muttekopf
IUCN IVRest Area
24.72 km² overlap
Vilsalpsee
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.86 km² overlap
Vilsalpsee
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.86 km² overlap
Naturschutzgebiet Vilsalpsee
IUCN IVNature Reserve
2.86 km² overlap
Allgäuer Hochalpen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.51 km² overlap
9 more protected areassorted by overlap area
Naturschutzgebiet Allgäuer Hochalpen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.51 km² overlap
Allgäuer Hochalpen
IUCN IVNature Reserve
1.51 km² overlap
Landscape Protection Area
1.22 km² overlap
Biosphere Park
1.19 km² overlap
Widdersteinmähder
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.54 km² overlap
Schöneberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.47 km² overlap
Gipslöcher
IUCN IVNature Reserve
0.37 km² overlap
Gadental
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.30 km² overlap
Gadental
IUCN IVNature Reserve
0.29 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 664 distinct species · 117 028 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Lech : 14 espèces reliées par 40 interactions GloBI sur 5 types (connectance 15.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
2,5°C
Annual rain
1 156mm
Moisture idx (CMI)
0,51
Runoff
849mm/an
PET
548mm
AET
543mm
Mean slope
26,7°
Water table
862cm
Forest
71%
Crops
0%
Urban
1%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)