HydroBASINS lev08 watershed · #2080461650
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 4 administrative regions : Aichach-Friedberg, Augsburg, Augsburg (Kreisfreie Stadt), Donau-Ries
Sub-basin area
281,9km²
Upstream area
4 677,9km²
Discharge
97,26m³/s
Mean elev.
453m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Schmutter353 km²
- Bassin de Lech78 km²
4 dept-equivalent regions (GADM L2)
- 148.7 km²52.6% of basin
- 66.8 km²23.6% of basin
- 66.8 km²23.6% of basin
- 0.4 km²0.1% of basin
13 intersecting protected areas
Donauauen zwischen Lechmündung und Ingolstadt
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.78 km² overlap
Lech-Donau-Winkel
IUCN VWetland of International Importance (Ramsar Site)
3.78 km² overlap
Donau mit Jura-Hängen zwischen Leitheim und Neuburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.56 km² overlap
Lechauen nördlich Augsburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.62 km² overlap
Landscape Protection Area
1.57 km² overlap
Friedberger Lechleite
IUCN VLandscape Protection Area
1.14 km² overlap
Lechauen bei Thierhaupten
IUCN IVNature Reserve
1.05 km² overlap
Lechaue westlich Todtenweis
IUCN IVNature Reserve
1.01 km² overlap
Nature Reserve
1.00 km² overlap
4 more protected areassorted by overlap area
Lechleite zwischen Friedberg und Thierhaupten
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.90 km² overlap
Höh-, Hörgelau- und Schwarzgraben, Lechbrenne nördlich Augsburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.26 km² overlap
Landscape Protection Area
0.23 km² overlap
Landscape Protection Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 668 distinct species · 67 362 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 : 22 espèces reliées par 70 interactions GloBI sur 4 types (connectance 17.2%, filtre Serrano α=0.2). 7 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°
8,4°C
Annual rain
799mm
Moisture idx (CMI)
0,03
Runoff
328mm/an
PET
772mm
AET
633mm
Mean slope
1,7°
Water table
99cm
Forest
19%
Crops
48%
Urban
11%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)