HydroBASINS lev08 watershed · #2080501170
Bassin de la Sauldre
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, Loir-et-Cher, Loiret
Sub-basin area
2 271,4km²
Upstream area
2 271,5km²
Discharge
16,57m³/s
Mean elev.
174m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1315.7 km²57.8% of basin
- 959.5 km²42.1% of basin
- 2.6 km²0.1% of basin
82 communes (GADM L5)Available for FRA, RWA
- Salbris106.79 km²100% commune
- Nançay105.42 km²100% commune
- Ivoy-le-Pré100.26 km²100% commune
- Souesmes99.53 km²100% commune
- Theillay94.02 km²97% commune
- Presly72.72 km²98% commune
- Ennordres65.19 km²100% commune
- Oizon62.66 km²100% commune
- Aubigny-sur-Nère61.72 km²100% commune
- Brinon-sur-Sauldre57.18 km²48% commune
- Sainte-Montaine53.87 km²100% commune
- La Ferté-Imbault51.77 km²100% commune
- Selles-Saint-Denis51.57 km²100% commune
- Pierrefitte-sur-Sauldre51.40 km²69% commune
- Argent-sur-Sauldre50.88 km²75% commune
- Ménétréol-sur-Sauldre50.29 km²100% commune
- Romorantin-Lanthenay45.31 km²100% commune
- Pruniers-en-Sologne43.99 km²100% commune
- Blancafort41.75 km²64% commune
- Clémont39.13 km²78% commune
- Villeherviers38.32 km²100% commune
- Jars37.43 km²100% commune
- Méry-ès-Bois37.37 km²41% commune
- Gy-en-Sologne36.21 km²100% commune
- Villegenon33.45 km²100% commune
- Loreux32.13 km²100% commune
- Mur-de-Sologne31.68 km²60% commune
- La Chapelotte28.87 km²100% commune
- Châtres-sur-Cher27.31 km²78% commune
- Billy26.57 km²99% commune
- Langon26.40 km²66% commune
- Neuilly-en-Sancerre26.02 km²100% commune
- Henrichemont25.71 km²100% commune
- Menetou-Râtel23.93 km²86% commune
- Neuvy-sur-Barangeon23.35 km²35% commune
- Dampierre-en-Crot22.16 km²100% commune
- Sens-Beaujeu22.16 km²100% commune
- Saint-Viâtre21.43 km²21% commune
- Barlieu20.98 km²73% commune
- Le Noyer20.65 km²100% commune
- Soings-en-Sologne19.00 km²52% commune
- Vouzeron18.73 km²36% commune
- Orçay18.59 km²100% commune
- Lassay-sur-Croisne18.55 km²100% commune
- Sury-ès-Bois18.26 km²55% commune
- Gièvres18.03 km²47% commune
- Veilleins18.01 km²38% commune
- Vailly-sur-Sauldre17.65 km²96% commune
- Subligny17.35 km²99% commune
- Saint-Laurent15.42 km²39% commune
- Neuvy-Deux-Clochers15.39 km²91% commune
- Menetou-Salon14.78 km²39% commune
- Villefranche-sur-Cher13.09 km²48% commune
- Marcilly-en-Gault12.89 km²23% commune
- Nouan-le-Fuzelier12.83 km²15% commune
- Assigny12.52 km²73% commune
- Parassy12.48 km²47% commune
- Achères11.71 km²92% commune
- Crézancy-en-Sancerre11.27 km²59% commune
- Vierzon10.81 km²14% commune
- Humbligny10.70 km²51% commune
- La Chapelle-d'Angillon10.48 km²100% commune
- Châtillon-sur-Cher10.34 km²34% commune
- Thou9.59 km²100% commune
- Mennetou-sur-Cher8.53 km²55% commune
- Millançay8.09 km²13% commune
- Selles-sur-Cher7.95 km²31% commune
- Concressault7.57 km²100% commune
- Rougeou7.32 km²94% commune
- Morogues6.08 km²19% commune
- Thénioux4.52 km²24% commune
- Sury-en-Vaux3.68 km²23% commune
- Cerdon2.57 km²4% commune
- Chémery1.78 km²5% commune
- Saint-Palais1.41 km²5% commune
- Sainte-Gemme-en-Sancerrois1.09 km²7% commune
- Veaugues0.67 km²2% commune
- Vignoux-sur-Barangeon0.37 km²1% commune
- Sassay0.04 km²0% commune
- Savigny-en-Sancerre0.03 km²0% commune
- Montigny0.01 km²0% commune
- Méry-sur-Cher0.00 km²0% commune
7 intersecting protected areas
Sologne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1306.27 km² overlap
Étangs de Sologne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
69.43 km² overlap
Massifs forestiers et rivières du Pays-Fort
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
25.28 km² overlap
Etangs De Saint Viatre
IUCN IVBiotope Protection Order
1.08 km² overlap
tourbiere des landes (la)
IUCN IVLand acquired by a regional conservatory of natural areas
0.09 km² overlap
patureau des matines (le)
IUCN IVLand acquired by a regional conservatory of natural areas
0.07 km² overlap
tour au lievre (la)
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 093 distinct species · 915 605 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Sauldre : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 121 interactions GloBI sur 6 types (connectance 15.5%, filtre Serrano α=0.2). 9 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°
10,8°C
Annual rain
699mm
Moisture idx (CMI)
-0,19
Runoff
233mm/an
PET
858mm
AET
583mm
Mean slope
1,4°
Water table
148cm
Forest
44%
Crops
27%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)