HydroBASINS lev08 watershed · #2080428750
Bassin de Nassach
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 : Haßberge, Rhön-Grabfeld, Schweinfurt
Sub-basin area
166km²
Upstream area
166,1km²
Discharge
1,12m³/s
Mean elev.
308m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 156.4 km²93.9% of basin
- 10.1 km²6.1% of basin
- 0.1 km²0.0% of basin
12 intersecting protected areas
Landscape Protection Area
33.03 km² overlap
Haßbergetrauf und Bundorfer Wald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
12.70 km² overlap
Haßbergetrauf von Königsberg bis Stadtlauringen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.41 km² overlap
Bundorfer Wald und Quellbäche der Baunach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.02 km² overlap
Nature Reserve
1.31 km² overlap
Geißleraue und Aurachwiesen bei Ostheim
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.24 km² overlap
Hohe Wann
IUCN IVNature Reserve
1.24 km² overlap
Haßbergetrauf von Zeil am Main bis Königsberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.24 km² overlap
Urlesbachtal
IUCN IVNature Reserve
0.24 km² overlap
3 more protected areassorted by overlap area
Naturschutzgebiet 'Urlesbachtal'
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.24 km² overlap
Landscape Protection Area
0.08 km² overlap
Mausohrkolonien in den Haßbergen und im Itz-Baunach-Hügelland
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 363 distinct species · 63 655 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Nassach : 21 espèces reliées par 58 interactions GloBI sur 3 types (connectance 19.3%, filtre Serrano α=0.2). 4 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°
8,3°C
Annual rain
628mm
Moisture idx (CMI)
-0,20
Runoff
212mm/an
PET
790mm
AET
529mm
Mean slope
3,3°
Water table
224cm
Forest
7%
Crops
51%
Urban
5%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)