HydroBASINS lev08 watershed · #2080536900
Bassin de la Charente
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 : Charente, Charente-Maritime
Sub-basin area
152,1km²
Upstream area
6 344,1km²
Discharge
108,17m³/s
Mean elev.
43m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Charente2660 km²
- Bassin du Né706 km²
2 dept-equivalent regions (GADM L2)
- 136.3 km²89.4% of basin
- 16.2 km²10.6% of basin
27 communes (GADM L5)Available for FRA, RWA
- Chérac26.67 km²89% commune
- Pérignac25.58 km²94% commune
- Saint-Césaire9.81 km²100% commune
- Montils9.02 km²37% commune
- Saint-Bris-des-Bois8.65 km²100% commune
- Dompierre-sur-Charente8.24 km²100% commune
- Salignac-sur-Charente7.80 km²72% commune
- Saint-Sauvant7.18 km²100% commune
- Saint-Laurent-de-Cognac6.27 km²59% commune
- Saint-Sever-de-Saintonge6.00 km²75% commune
- Brives-sur-Charente5.86 km²100% commune
- Rouffiac5.77 km²100% commune
- Brizambourg4.84 km²22% commune
- Saint-Sulpice-de-Cognac4.46 km²19% commune
- Louzac-Saint-André3.83 km²38% commune
- Chaniers3.43 km²13% commune
- Échebrune2.05 km²12% commune
- Burie1.32 km²14% commune
- La Chapelle-des-Pots1.31 km²12% commune
- Écoyeux1.20 km²6% commune
- Ars0.90 km²8% commune
- Merpins0.69 km²7% commune
- Coulonges0.65 km²7% commune
- Bougneau0.50 km²3% commune
- Villars-les-Bois0.29 km²3% commune
- Vénérand0.15 km²2% commune
- Saint-Seurin-de-Palenne0.02 km²1% commune
5 intersecting protected areas
Vallée de la Charente moyenne et Seugnes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.14 km² overlap
Moyenne vallée de la Charente et Seugnes et Coran
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.14 km² overlap
Land acquired by a regional conservatory of natural areas
0.06 km² overlap
val de seugne
IUCN IVLand acquired by a regional conservatory of natural areas
0.02 km² overlap
Vallée du Né et ses principaux affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 307 distinct species · 70 945 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Charente : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 6 types (connectance 17.1%, filtre Serrano α=0.2). 13 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°
12,4°C
Annual rain
856mm
Moisture idx (CMI)
-0,05
Runoff
536mm/an
PET
905mm
AET
633mm
Mean slope
1,6°
Water table
95cm
Forest
4%
Crops
73%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)