HydroBASINS lev08 watershed · #2080497250
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 3 administrative regions : Allier, Cher, Nièvre
Sub-basin area
1 554,8km²
Upstream area
34 086km²
Discharge
326,41m³/s
Mean elev.
200m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Nièvre1838 km²
- Bassin de l'Allier1789 km²
3 dept-equivalent regions (GADM L2)
- 1051.7 km²67.5% of basin
- 490.0 km²31.4% of basin
- 17.3 km²1.1% of basin
111 communes (GADM L5)Available for FRA, RWA
- Sancoins54.05 km²99% commune
- Herry50.18 km²100% commune
- La Guerche-sur-l'Aubois49.74 km²91% commune
- Raveau36.39 km²100% commune
- Lugny-Champagne29.65 km²100% commune
- Menetou-Couture29.62 km²100% commune
- Narcy29.50 km²100% commune
- Jalognes29.00 km²100% commune
- Germigny-l'Exempt28.45 km²100% commune
- Châteauneuf-Val-de-Bargis28.06 km²58% commune
- Feux27.68 km²100% commune
- Veaugues27.25 km²98% commune
- Cuffy26.60 km²74% commune
- Jussy-le-Chaudrier25.63 km²100% commune
- Chaulgnes24.66 km²97% commune
- Vereaux23.24 km²100% commune
- Cosne-Cours-sur-Loire22.92 km²43% commune
- Tracy-sur-Loire22.72 km²100% commune
- Bannay22.71 km²90% commune
- Garchy21.93 km²100% commune
- Cours-les-Barres21.81 km²100% commune
- Charentonnay21.58 km²100% commune
- Augy-sur-Aubois21.30 km²69% commune
- Vielmanay21.06 km²99% commune
- Varennes-Vauzelles20.28 km²60% commune
- Garigny20.14 km²100% commune
- Pouilly-sur-Loire20.00 km²100% commune
- Nérondes19.92 km²57% commune
- Germigny-sur-Loire19.01 km²100% commune
- Saint-Hilaire-de-Gondilly18.85 km²100% commune
- Mesves-sur-Loire18.64 km²100% commune
- Varennes-lès-Narcy18.42 km²100% commune
- Vinon18.37 km²100% commune
- Chassy18.12 km²100% commune
- Saint-Martin-des-Champs18.10 km²100% commune
- Groises17.60 km²100% commune
- Jouet-sur-l'Aubois17.37 km²100% commune
- La Chapelle-Montlinard16.72 km²100% commune
- Sancerre16.70 km²100% commune
- La Charité-sur-Loire16.56 km²100% commune
- Garchizy16.34 km²100% commune
- Sancergues15.52 km²100% commune
- Saint-Bouize15.12 km²100% commune
- Azy15.03 km²54% commune
- Grossouvre14.95 km²96% commune
- Précy14.89 km²100% commune
- Ignol14.81 km²83% commune
- Argenvières14.73 km²100% commune
- Le Chautay14.20 km²100% commune
- Montigny14.08 km²49% commune
- Torteron14.03 km²100% commune
- La Chapelle-Hugon13.87 km²84% commune
- Marzy13.85 km²66% commune
- Couy13.79 km²75% commune
- Murlin13.44 km²87% commune
- Chaumoux-Marcilly13.28 km²80% commune
- Pougues-les-Eaux12.79 km²100% commune
- Sury-en-Vaux12.62 km²77% commune
- Parigny-les-Vaux12.48 km²40% commune
- Couargues12.01 km²100% commune
- Beffes11.82 km²100% commune
- Villequiers11.73 km²39% commune
- Chasnay11.72 km²100% commune
- Étréchy11.44 km²35% commune
- Nannay11.28 km²100% commune
- Saint-Andelain11.20 km²54% commune
- La Marche10.93 km²100% commune
- Lurcy-Lévis10.39 km²15% commune
- Saint-Léger-le-Petit10.28 km²100% commune
- Champvoux10.20 km²100% commune
- Thauvenay10.13 km²100% commune
- Marseilles-lès-Aubigny10.11 km²100% commune
- Sévry9.07 km²98% commune
- Mornay-Berry9.07 km²100% commune
- Tronsanges8.95 km²100% commune
- Gardefort8.05 km²100% commune
- Bulcy7.88 km²100% commune
- Crézancy-en-Sancerre7.72 km²41% commune
- Saint-Satur7.69 km²100% commune
- La Celle-sur-Nièvre7.57 km²58% commune
- Laverdines7.33 km²76% commune
- Château-sur-Allier6.92 km²25% commune
- Croisy6.33 km²48% commune
- Sainte-Gemme-en-Sancerrois6.26 km²43% commune
- Bué6.11 km²100% commune
- Ménétréol-sous-Sancerre5.39 km²100% commune
- Ourouer-les-Bourdelins5.15 km²21% commune
- Verdigny4.73 km²100% commune
- Fourchambault4.52 km²100% commune
- Givardon4.39 km²20% commune
- Sainte-Colombe-des-Bois3.92 km²13% commune
- Menetou-Râtel3.77 km²14% commune
- Saint-Martin-sur-Nohain3.53 km²14% commune
- Suilly-la-Tour2.50 km²7% commune
- Saint-Aubin-les-Forges2.31 km²9% commune
- Sagonne2.01 km²11% commune
- Charly1.95 km²7% commune
- Nevers1.75 km²10% commune
- Arbourse1.68 km²19% commune
- Humbligny1.56 km²7% commune
- Neuvy-Deux-Clochers1.54 km²9% commune
- Mornay-sur-Allier1.40 km²6% commune
- Boulleret1.24 km²4% commune
- Saint-Quentin-sur-Nohain0.97 km²6% commune
- Apremont-sur-Allier0.54 km²2% commune
- Neuvy-le-Barrois0.46 km²1% commune
- Saligny-le-Vif0.43 km²3% commune
- Gron0.40 km²1% commune
- Tendron0.30 km²3% commune
- Beaumont-la-Ferrière0.03 km²0% commune
- Gimouille0.00 km²0% commune
14 intersecting protected areas
Vallées de la Loire et de l'Allier entre Cher et Nièvre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
70.17 km² overlap
Vallées de la Loire et de l'Allier entre Cher et Nièvre
IUCN Not ReportedSpecial Protection Area (Birds Directive)
70.17 km² overlap
Val De Loire
IUCN IVNational Nature Reserve
14.58 km² overlap
rnn du val de loire
IUCN IVLand acquired by a regional conservatory of natural areas
3.59 km² overlap
val d\'herry (le)
IUCN IVLand acquired by a regional conservatory of natural areas
0.74 km² overlap
la grande isle
IUCN IVLand acquired by a regional conservatory of natural areas
0.67 km² overlap
Coteaux Calcaires du Sancerrois
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.48 km² overlap
butteaux (les)
IUCN IVLand acquired by a regional conservatory of natural areas
0.44 km² overlap
vallees (les)
IUCN IVLand acquired by a regional conservatory of natural areas
0.14 km² overlap
5 more protected areassorted by overlap area
Grotte Des Usages
IUCN IVBiotope Protection Order
0.03 km² overlap
Land acquired by a regional conservatory of natural areas
0.01 km² overlap
mare des brueres (la)
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
luneaux (les)
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Site à chauves-souris de La Guerche-sur-l'Aubois
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
5 725 distinct species · 528 127 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 : 33 espèces + 5 bulles famille, 73 interactions GloBI documentées sur 4 types (connectance 10.4%, filtre Serrano α=0.2). Les 5 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°
10,7°C
Annual rain
740mm
Moisture idx (CMI)
-0,15
Runoff
256mm/an
PET
874mm
AET
611mm
Mean slope
1,8°
Water table
129cm
Forest
7%
Crops
58%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)