HydroBASINS lev08 watershed · #2080501420
Bassin du Cher
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 : Cher, Indre, Loir-et-Cher
Sub-basin area
283km²
Upstream area
9 280,9km²
Discharge
68,41m³/s
Mean elev.
113m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Arnon2206 km²
- Bassin du Cher46 km²
3 dept-equivalent regions (GADM L2)
- 147.1 km²51.8% of basin
- 112.4 km²39.6% of basin
- 24.3 km²8.6% of basin
24 communes (GADM L5)Available for FRA, RWA
- Genouilly30.53 km²87% commune
- Maray26.78 km²95% commune
- Saint-Georges-sur-la-Prée23.14 km²100% commune
- Chabris22.54 km²55% commune
- Méry-sur-Cher20.96 km²100% commune
- Gièvres20.06 km²53% commune
- Selles-sur-Cher16.31 km²65% commune
- Saint-Julien-sur-Cher15.85 km²99% commune
- Saint-Loup15.05 km²99% commune
- Thénioux14.56 km²76% commune
- Villefranche-sur-Cher14.31 km²52% commune
- Langon13.53 km²34% commune
- Saint-Hilaire-de-Court9.42 km²81% commune
- La Chapelle-Montmartin8.10 km²74% commune
- Dampierre-en-Graçay7.82 km²82% commune
- Châtres-sur-Cher7.77 km²22% commune
- Mennetou-sur-Cher7.04 km²45% commune
- Vierzon4.18 km²6% commune
- Theillay2.26 km²2% commune
- Massay1.58 km²3% commune
- La Vernelle1.53 km²9% commune
- Graçay0.24 km²1% commune
- Anjouin0.23 km²1% commune
- Meusnes0.02 km²0% commune
12 intersecting protected areas
Plateau de Chabris / La Chapelle - Montmartin
IUCN Not ReportedSpecial Protection Area (Birds Directive)
58.90 km² overlap
Sologne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.29 km² overlap
Prairies du Fouzon
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.73 km² overlap
Vallée du Cher et coteaux, forêt de Grosbois
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.73 km² overlap
ile de rozay (l\')
IUCN IVLand acquired by a regional conservatory of natural areas
0.23 km² overlap
chatillon sur cher
IUCN IVLand acquired by a regional conservatory of natural areas
0.22 km² overlap
pres de saint loup (les)
IUCN IVLand acquired by a regional conservatory of natural areas
0.21 km² overlap
chapelle montmartin (la)
IUCN IVLand acquired by a regional conservatory of natural areas
0.13 km² overlap
plateau de chabris (le)
IUCN IVLand acquired by a regional conservatory of natural areas
0.11 km² overlap
3 more protected areassorted by overlap area
ile du prieure (l\')
IUCN IVLand acquired by a regional conservatory of natural areas
0.10 km² overlap
tour au lievre (la)
IUCN IVLand acquired by a regional conservatory of natural areas
0.09 km² overlap
cabochon (le)
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 461 distinct species · 86 965 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 du Cher : 31 espèces + 7 bulles famille, 102 interactions GloBI documentées sur 5 types (connectance 14.5%, filtre Serrano α=0.2). Les 7 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°
11,1°C
Annual rain
677mm
Moisture idx (CMI)
-0,22
Runoff
219mm/an
PET
865mm
AET
571mm
Mean slope
1,2°
Water table
148cm
Forest
8%
Crops
46%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)