HydroBASINS lev08 watershed · #2080524070
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
373,3km²
Upstream area
25 799,2km²
Discharge
469m³/s
Mean elev.
242m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Reyssouze501 km²
- Bassin de la Saône63 km²
2 dept-equivalent regions (GADM L2)
- 233.8 km²62.5% of basin
- 140.5 km²37.5% of basin
59 communes (GADM L5)Available for FRA, RWA
- Bâgé-la-Ville39.43 km²98% commune
- Mâcon18.68 km²68% commune
- Replonges16.77 km²100% commune
- Montbellet16.72 km²86% commune
- Azé15.05 km²100% commune
- Verzé14.83 km²72% commune
- Feillens14.80 km²100% commune
- Lugny14.35 km²100% commune
- Igé14.32 km²100% commune
- Manziat12.75 km²100% commune
- Viré11.41 km²100% commune
- Saint-Gengoux-de-Scissé11.05 km²100% commune
- Laizé10.65 km²100% commune
- Péronne10.54 km²100% commune
- Saint-Maurice-de-Satonnay10.16 km²100% commune
- Clessé10.03 km²100% commune
- Crottet9.69 km²83% commune
- Hurigny8.00 km²87% commune
- Cruzille7.20 km²62% commune
- Boz7.09 km²91% commune
- Sancé6.46 km²100% commune
- Ozan6.38 km²100% commune
- Dommartin6.01 km²34% commune
- La Salle5.84 km²100% commune
- Saint-Albain5.42 km²100% commune
- Reyssouze5.41 km²58% commune
- Senozan4.95 km²100% commune
- Saint-Cyr-sur-Menthon4.80 km²28% commune
- Bissy-la-Mâconnaise4.74 km²95% commune
- Asnières-sur-Saône4.50 km²100% commune
- Saint-Martin-Belle-Roche4.49 km²100% commune
- Charbonnières4.37 km²100% commune
- Chardonnay3.96 km²69% commune
- Fleurville3.82 km²100% commune
- Vésines3.74 km²100% commune
- Donzy-le-Pertuis3.44 km²54% commune
- Chevroux2.70 km²16% commune
- Burgy2.66 km²100% commune
- Saint-André-de-Bâgé2.58 km²87% commune
- Uchizy2.33 km²18% commune
- Ozenay2.18 km²16% commune
- Blanot1.81 km²16% commune
- La Roche-Vineuse1.71 km²15% commune
- Grevilly1.41 km²56% commune
- Bâgé-le-Châtel0.72 km²100% commune
- Grièges0.71 km²5% commune
- Pont-de-Vaux0.65 km²9% commune
- Saint-Laurent-sur-Saône0.59 km²100% commune
- Saint-Didier-d'Aussiat0.48 km²3% commune
- Saint-Jean-sur-Veyle0.42 km²4% commune
- Martailly-lès-Brancion0.38 km²4% commune
- Charnay-lès-Mâcon0.33 km²3% commune
- Cluny0.24 km²1% commune
- Pont-de-Veyle0.12 km²6% commune
- Gorrevod0.12 km²2% commune
- Plottes0.10 km²1% commune
- Berzé-la-Ville0.08 km²1% commune
- Berzé-le-Châtel0.07 km²1% commune
- Saint-Genis-sur-Menthon0.05 km²0% commune
6 intersecting protected areas
Val de Saône
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.06 km² overlap
Prairies humides et forêts alluviales du Val de Saône
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.06 km² overlap
Special Areas of Conservation (Habitats Directive)
11.64 km² overlap
Biotope Protection Order
2.88 km² overlap
Land acquired by a regional conservatory of natural areas
1.14 km² overlap
Lande tourbeuse des Oignons
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 488 distinct species · 147 439 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 : 40 espèces + 3 bulles famille, 83 interactions GloBI documentées sur 7 types (connectance 9.2%, filtre Serrano α=0.2). Les 3 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
793mm
Moisture idx (CMI)
-0,09
Runoff
432mm/an
PET
873mm
AET
639mm
Mean slope
3,3°
Water table
195cm
Forest
14%
Crops
24%
Urban
5%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)