HydroBASINS lev08 watershed · #2080426450
Bassin de Main
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 5 administrative regions : Aschaffenburg, Aschaffenburg (Kreisfreie Stadt), Darmstadt-Dieburg, Main-Kinzig-Kreis, Offenbach
Sub-basin area
366,3km²
Upstream area
23 406,7km²
Discharge
174,99m³/s
Mean elev.
218m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Main569 km²
- Bassin de Gersprenz499 km²
5 dept-equivalent regions (GADM L2)
- 253.6 km²69.0% of basin
- 67.6 km²18.4% of basin
- 42.3 km²11.5% of basin
- 3.5 km²1.0% of basin
- 0.4 km²0.1% of basin
30 intersecting protected areas
Landscape Protection Area
140.69 km² overlap
Landkreis Offenbach
IUCN VLandscape Protection Area
30.49 km² overlap
Landscape Protection Area
23.96 km² overlap
Sandkiefernwälder in der östlichen Untermainebene
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.93 km² overlap
Stadt Hanau
IUCN VLandscape Protection Area
10.68 km² overlap
Hessische Mainauen
IUCN VLandscape Protection Area
7.23 km² overlap
Landscape Protection Area
2.46 km² overlap
Sendefunkstelle Mainflingen/Zellhausen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.65 km² overlap
Hochbruch von Hausen
IUCN IVNature Reserve
1.11 km² overlap
21 more protected areassorted by overlap area
Alzenauer Sande
IUCN IVNature Reserve
0.95 km² overlap
Naturschutzgebiet 'Alzenauer Sande'
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.95 km² overlap
Bong'sche Grube und Mainflinger Mainufer
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.95 km² overlap
Nature Reserve
0.95 km² overlap
Landscape Protection Area
0.86 km² overlap
Nature Reserve
0.82 km² overlap
US-Militärgelände bei Großauheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.72 km² overlap
NSG Schwarzbruch und NSG Pechgraben bei Seligenstadt
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.68 km² overlap
NSG Schifflache bei Großauheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.61 km² overlap
Schifflache bei Großauheim
IUCN IVNature Reserve
0.61 km² overlap
Nature Reserve
0.58 km² overlap
Nature Reserve
0.51 km² overlap
Mainwiesen
IUCN VLandscape Protection Area
0.51 km² overlap
Nature Reserve
0.43 km² overlap
Landkreis Dieburg
IUCN VLandscape Protection Area
0.43 km² overlap
Nature Reserve
0.42 km² overlap
Kortenbach bei Froschhausen
IUCN IVNature Reserve
0.41 km² overlap
Nature Reserve
0.34 km² overlap
Nature Reserve
0.34 km² overlap
Landscape Protection Area
0.33 km² overlap
Speckgraben bei Mainflingen
IUCN IVNature Reserve
0.32 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 500 distinct species · 102 950 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Main : 25 espèces reliées par 150 interactions GloBI sur 5 types (connectance 21.3%, filtre Serrano α=0.2). 13 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°
9,4°C
Annual rain
678mm
Moisture idx (CMI)
-0,15
Runoff
272mm/an
PET
797mm
AET
560mm
Mean slope
4,4°
Water table
271cm
Forest
41%
Crops
19%
Urban
39%
Protected
58%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)