HydroBASINS lev08 watershed · #2080520250
Bassin de l'Arroux
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 1 administrative regions : Saône-et-Loire
Sub-basin area
12,7km²
Upstream area
3 175,2km²
Discharge
34,83m³/s
Mean elev.
258m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Bourbince868 km²
- Bassin de l'Arroux505 km²
1 dept-equivalent regions (GADM L2)
- 12.7 km²100.0% of basin
3 communes (GADM L5)Available for FRA, RWA
- Digoin8.40 km²24% commune
- La Motte-Saint-Jean4.10 km²19% commune
- Rigny-sur-Arroux0.18 km²0% commune
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 l'Arroux : 22 espèces + 2 bulles famille, 38 interactions GloBI documentées sur 2 types (connectance 13.8%, 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°
10,9°C
Annual rain
739mm
Moisture idx (CMI)
-0,15
Runoff
324mm/an
PET
866mm
AET
620mm
Mean slope
2,3°
Water table
205cm
Forest
0%
Crops
14%
Urban
32%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)