HydroBASINS lev08 watershed · #2080467560
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 3 administrative regions : Aichach-Friedberg, Augsburg, Augsburg (Kreisfreie Stadt)
Sub-basin area
77,5km²
Upstream area
4 043,5km²
Discharge
90,04m³/s
Mean elev.
465m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Lech1294 km²
- Bassin de Wertach1269 km²
3 dept-equivalent regions (GADM L2)
- 29.2 km²37.6% of basin
- 28.3 km²36.4% of basin
- 20.3 km²26.1% of basin
8 intersecting protected areas
Landscape Protection Area
2.12 km² overlap
Lechauen nördlich Augsburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.35 km² overlap
Friedberger Lechleite
IUCN VLandscape Protection Area
1.21 km² overlap
Landscape Protection Area
1.14 km² overlap
Höh-, Hörgelau- und Schwarzgraben, Lechbrenne nördlich Augsburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.42 km² overlap
Lechaue westlich Todtenweis
IUCN IVNature Reserve
0.40 km² overlap
LSG "Wolfzahnau"
IUCN VLandscape Protection Area
0.22 km² overlap
Firnhaberauheide
IUCN IVNature Reserve
0.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 424 distinct species · 9 701 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 135 interactions GloBI sur 6 types (connectance 15.7%, filtre Serrano α=0.2). 14 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°
8,5°C
Annual rain
822mm
Moisture idx (CMI)
0,06
Runoff
360mm/an
PET
769mm
AET
643mm
Mean slope
0,5°
Water table
33cm
Forest
1%
Crops
46%
Urban
75%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)