HydroBASINS lev08 watershed · #2080520310
Bassin de la Loire
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 2 administrative regions : Allier, Saône-et-Loire
Sub-basin area
21,1km²
Upstream area
9 280,7km²
Discharge
87,54m³/s
Mean elev.
239m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Arconce662 km²
- Bassin de la Loire653 km²
2 dept-equivalent regions (GADM L2)
- 13.9 km²65.7% of basin
- 7.2 km²34.3% of basin
5 communes (GADM L5)Available for FRA, RWA
- Chassenard13.20 km²53% commune
- Digoin3.92 km²11% commune
- Varenne-Saint-Germain3.32 km²21% commune
- Saint-Léger-sur-Vouzance0.47 km²3% commune
- Molinet0.20 km²1% commune
2 intersecting protected areas
Val de Loire bocager
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.32 km² overlap
Val de Loire bocager
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.48 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 038 distinct species · 5 212 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 la Loire : 22 espèces + 2 bulles famille, 40 interactions GloBI documentées sur 2 types (connectance 14.5%, filtre Serrano α=0.2). Les 2 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,0°C
Annual rain
731mm
Moisture idx (CMI)
-0,16
Runoff
320mm/an
PET
875mm
AET
616mm
Mean slope
1,0°
Water table
83cm
Forest
0%
Crops
16%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)