HydroBASINS lev08 watershed · #2080514480
Bassin de la Marmande
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 : Allier, Cher
Sub-basin area
292,5km²
Upstream area
292,8km²
Discharge
2,09m³/s
Mean elev.
243m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 193.5 km²66.0% of basin
- 99.8 km²34.0% of basin
20 communes (GADM L5)Available for FRA, RWA
- Cérilly55.05 km²77% commune
- Isle-et-Bardais41.04 km²92% commune
- Charenton-du-Cher32.66 km²66% commune
- Saint-Bonnet-Tronçais28.10 km²100% commune
- Ainay-le-Château24.42 km²100% commune
- Saint-Pierre-les-Étieux22.62 km²83% commune
- Le Brethon18.49 km²42% commune
- Saint-Amand-Montrond16.19 km²78% commune
- Vitray13.86 km²47% commune
- Coust12.68 km²57% commune
- Braize8.31 km²39% commune
- Colombiers7.51 km²76% commune
- Vernais4.36 km²17% commune
- Le Vilhain2.96 km²11% commune
- Bessais-le-Fromental1.75 km²7% commune
- Meillant1.51 km²4% commune
- Valigny0.78 km²4% commune
- Couleuvre0.45 km²1% commune
- Arpheuilles0.29 km²1% commune
- Drevant0.23 km²5% commune
4 intersecting protected areas
Forêt de Troncais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.76 km² overlap
Biotope Protection Order
0.90 km² overlap
Coteaux, bois et marais calcaires de la Champagne Berrichonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.36 km² overlap
Futaie Colbert
IUCN IVForest Managed Biological Reserve
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 588 distinct species · 107 245 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Marmande : 42 espèces + 4 bulles famille, 101 interactions GloBI documentées sur 4 types (connectance 9.8%, filtre Serrano α=0.2). Les 4 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°
10,8°C
Annual rain
745mm
Moisture idx (CMI)
-0,16
Runoff
236mm/an
PET
891mm
AET
624mm
Mean slope
2,1°
Water table
172cm
Forest
25%
Crops
36%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)