HydroBASINS lev08 watershed · #2080495540
Bassin de la Cisse
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 1 administrative regions : Loir-et-Cher
Sub-basin area
540,2km²
Upstream area
540,6km²
Discharge
3,48m³/s
Mean elev.
119m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 541.7 km²100.0% of basin
58 communes (GADM L5)Available for FRA, RWA
- Saint-Léonard-en-Beauce35.51 km²87% commune
- Maves33.71 km²100% commune
- Averdon29.20 km²100% commune
- Landes-le-Gaulois23.69 km²100% commune
- Champigny-en-Beauce22.42 km²100% commune
- Villefrancœur18.63 km²100% commune
- Saint-Lubin-en-Vergonnois17.40 km²100% commune
- Françay16.93 km²82% commune
- Conan15.28 km²100% commune
- La Chapelle-Saint-Martin-en-Plai14.82 km²65% commune
- Saint-Bohaire14.07 km²100% commune
- La Chapelle-Vendômoise13.32 km²100% commune
- Mulsans12.76 km²81% commune
- Herbault12.01 km²89% commune
- Le Plessis-l'Échelle11.84 km²100% commune
- Oucques11.80 km²45% commune
- Saint-Sulpice-de-Pommeray11.68 km²100% commune
- Gombergean11.00 km²89% commune
- Chouzy-sur-Cisse10.82 km²48% commune
- Molineuf10.77 km²100% commune
- Orchaise10.24 km²51% commune
- Fossé10.22 km²100% commune
- Briou10.07 km²100% commune
- Lancôme10.06 km²100% commune
- Marolles9.94 km²100% commune
- Villerbon9.81 km²56% commune
- La Madeleine-Villefrouin9.73 km²100% commune
- Chambon-sur-Cisse9.66 km²76% commune
- Talcy9.66 km²63% commune
- Marchenoir9.34 km²100% commune
- Lorges8.97 km²67% commune
- Boisseau8.23 km²100% commune
- Pray7.50 km²69% commune
- Tourailles7.20 km²96% commune
- Rhodon7.17 km²100% commune
- Roches6.98 km²83% commune
- Villebarou6.61 km²72% commune
- Baigneaux6.12 km²92% commune
- Villemardy4.41 km²37% commune
- Villeneuve-Frouville4.06 km²100% commune
- Coulanges3.78 km²48% commune
- Blois3.64 km²10% commune
- Saint-Cyr-du-Gault3.59 km²14% commune
- Saint-Étienne-des-Guérets2.93 km²25% commune
- Selommes2.74 km²10% commune
- Sainte-Gemmes2.18 km²25% commune
- Saint-Laurent-des-Bois1.99 km²11% commune
- Villeromain1.98 km²15% commune
- Lancé1.70 km²10% commune
- Villexanton1.03 km²9% commune
- Vievy-le-Rayé0.90 km²2% commune
- La Colombe0.50 km²3% commune
- Autainville0.48 km²2% commune
- Josnes0.18 km²1% commune
- Villermain0.16 km²1% commune
- Suèvres0.16 km²0% commune
- Seillac0.09 km²1% commune
- Saint-Gourgon0.06 km²1% commune
11 intersecting protected areas
Petite Beauce
IUCN Not ReportedSpecial Protection Area (Birds Directive)
383.53 km² overlap
Vallée de la Cisse en amont de Saint-Lubin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.36 km² overlap
National Nature Reserve
3.02 km² overlap
eperon de roquezon (l\')
IUCN IVLand acquired by a regional conservatory of natural areas
0.11 km² overlap
marais des courtils
IUCN IVLand acquired by a regional conservatory of natural areas
0.08 km² overlap
butte du chene (la)
IUCN IVLand acquired by a regional conservatory of natural areas
0.05 km² overlap
pelouses de molinas
IUCN IVLand acquired by a regional conservatory of natural areas
0.04 km² overlap
coteau de molinas (le)
IUCN IVLand acquired by a regional conservatory of natural areas
0.04 km² overlap
Land acquired by a regional conservatory of natural areas
0.03 km² overlap
2 more protected areassorted by overlap area
les vouzoirs
IUCN IVLand acquired by a regional conservatory of natural areas
0.02 km² overlap
coteau de veniel (le)
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 224 distinct species · 280 459 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Cisse : 26 espèces reliées par 99 interactions GloBI sur 6 types (connectance 16.6%, 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°
10,9°C
Annual rain
653mm
Moisture idx (CMI)
-0,23
Runoff
203mm/an
PET
849mm
AET
551mm
Mean slope
0,8°
Water table
54cm
Forest
1%
Crops
54%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)