HydroBASINS lev08 watershed · #2080520560
Bassin de la Saône
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 : Ain, Saône-et-Loire
Sub-basin area
62,8km²
Upstream area
24 925,1km²
Discharge
455,22m³/s
Mean elev.
196m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Seille2339 km²
- Bassin de la Saône373 km²
2 dept-equivalent regions (GADM L2)
- 39.4 km²62.6% of basin
- 23.5 km²37.4% of basin
14 communes (GADM L5)Available for FRA, RWA
- Arbigny17.57 km²100% commune
- Saint-Bénigne11.76 km²69% commune
- Uchizy9.88 km²77% commune
- Farges-lès-Mâcon5.75 km²98% commune
- Sermoyer4.28 km²25% commune
- Chavannes-sur-Reyssouze2.83 km²18% commune
- Montbellet2.67 km²14% commune
- Le Villars2.43 km²42% commune
- Vescours1.92 km²15% commune
- Chardonnay1.80 km²31% commune
- Pont-de-Vaux1.06 km²14% commune
- Plottes0.62 km²6% commune
- La Truchère0.35 km²7% commune
- Ozenay0.00 km²0% commune
6 intersecting protected areas
Val de Saône
IUCN Not ReportedSpecial Protection Area (Birds Directive)
12.16 km² overlap
Prairies humides et forêts alluviales du Val de Saône
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.16 km² overlap
Biotope Protection Order
11.49 km² overlap
Land acquired by a regional conservatory of natural areas
1.13 km² overlap
Basse vallée de la Seille
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.18 km² overlap
Special Areas of Conservation (Habitats Directive)
0.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 938 distinct species · 136 452 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Saône : 14 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 198 interactions GloBI sur 6 types (connectance 11.2%, filtre Serrano α=0.2). 46 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°
11,1°C
Annual rain
787mm
Moisture idx (CMI)
-0,11
Runoff
464mm/an
PET
880mm
AET
636mm
Mean slope
1,5°
Water table
98cm
Forest
19%
Crops
13%
Urban
0%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)