HydroBASINS lev08 watershed · #2080435550
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, Main-Kinzig-Kreis, Main-Spessart, Main-Tauber-Kreis, Würzburg
Sub-basin area
1 002,8km²
Upstream area
18 761km²
Discharge
135,41m³/s
Mean elev.
332m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Main11 km²
- Bassin de Main1 km²
5 dept-equivalent regions (GADM L2)
- 624.9 km²62.1% of basin
- 161.5 km²16.1% of basin
- 129.0 km²12.8% of basin
- 49.5 km²4.9% of basin
- 41.3 km²4.1% of basin
30 intersecting protected areas
Landscape Protection Area
482.73 km² overlap
Spessart
IUCN Not ReportedSpecial Protection Area (Birds Directive)
183.81 km² overlap
Hochspessart
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
106.73 km² overlap
Wertheim (4 Teilgebiete)
IUCN VLandscape Protection Area
11.79 km² overlap
Irtenberger und Guttenberger Wald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.07 km² overlap
Kembachtal
IUCN VLandscape Protection Area
7.44 km² overlap
Lohrbach- und Aubach-Tal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.56 km² overlap
Spessartwiesen
IUCN IVNature Reserve
3.43 km² overlap
Zellinger Gemeindewald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.32 km² overlap
21 more protected areassorted by overlap area
Maintalhänge zwischen Bürgstadt und Wertheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.90 km² overlap
Laubwälder um Würzburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.38 km² overlap
Unteres Taubertal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.72 km² overlap
Magerstandorte bei Marktheidenfeld und Triefenstein
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.68 km² overlap
Naturschutzgebiet 'Graureiherkolonie am Salzberg'
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.59 km² overlap
Nature Reserve
1.58 km² overlap
Nature Reserve
1.22 km² overlap
Naturwaldreservat Eichhall
IUCN IVNature Reserve
0.72 km² overlap
Hafenlohrtal
IUCN IVNature Reserve
0.72 km² overlap
Mäusberg, Rammersberg, Ständelberg und Umgebung
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.56 km² overlap
Nature Reserve
0.56 km² overlap
Romberg
IUCN IVNature Reserve
0.56 km² overlap
Naturschutzgebiet 'Romberg'
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.55 km² overlap
Wiesbütt-Moor mit angrenzenden Waldflächen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.49 km² overlap
Weihersgrund
IUCN IVNature Reserve
0.43 km² overlap
Nature Reserve
0.37 km² overlap
Leidenrain
IUCN IVNature Reserve
0.30 km² overlap
Ellenberg-Kapf
IUCN IVNature Reserve
0.20 km² overlap
Maintrockenhänge am Kallmuth
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.18 km² overlap
Kallmuth
IUCN IVNature Reserve
0.18 km² overlap
Lohrbach und Flörsbach bei Flörsbachtal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 601 distinct species · 212 483 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 141 interactions GloBI sur 6 types (connectance 22.4%, 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°
8,9°C
Annual rain
700mm
Moisture idx (CMI)
-0,11
Runoff
255mm/an
PET
783mm
AET
569mm
Mean slope
6,7°
Water table
370cm
Forest
48%
Crops
25%
Urban
4%
Protected
50%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)