HydroBASINS lev08 watershed · #2080520890
Bassin de la Clouère
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, Vienne
Sub-basin area
381,7km²
Upstream area
381,8km²
Discharge
4,66m³/s
Mean elev.
137m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 378.4 km²98.9% of basin
- 4.3 km²1.1% of basin
27 communes (GADM L5)Available for FRA, RWA
- Usson-du-Poitou72.38 km²98% commune
- Marnay42.24 km²92% commune
- Saint-Secondin37.89 km²100% commune
- Saint-Maurice-la-Clouère33.21 km²84% commune
- Saint-Martin-l'Ars30.00 km²72% commune
- La Ferrière-Airoux26.45 km²95% commune
- Champagné-Saint-Hilaire23.05 km²49% commune
- Magné20.33 km²100% commune
- Brion16.35 km²100% commune
- Château-Garnier13.42 km²37% commune
- Availles-Limouzine12.39 km²22% commune
- Château-Larcher11.62 km²76% commune
- Aslonnes7.65 km²33% commune
- Le Vigeant6.46 km²10% commune
- Pressac6.24 km²12% commune
- Gençay4.53 km²100% commune
- Lessac4.33 km²13% commune
- Payroux3.52 km²12% commune
- Vernon2.73 km²7% commune
- Bouresse2.44 km²7% commune
- Vivonne1.65 km²4% commune
- Saint-Laurent-de-Jourdes1.30 km²7% commune
- Mauprévoir1.14 km²2% commune
- Queaux0.73 km²1% commune
- La Villedieu-du-Clain0.24 km²3% commune
- Sommières-du-Clain0.23 km²1% commune
- Anché0.19 km²1% commune
2 intersecting protected areas
val de clouere
IUCN IVLand acquired by a regional conservatory of natural areas
0.26 km² overlap
chaumes de thorus
IUCN IVLand acquired by a regional conservatory of natural areas
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 570 distinct species · 246 129 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 de la Clouère : 14 espèces reliées par 283 interactions GloBI sur 6 types (connectance 13.6%, filtre Serrano α=0.2). 51 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°
11,5°C
Annual rain
805mm
Moisture idx (CMI)
-0,11
Runoff
370mm/an
PET
903mm
AET
628mm
Mean slope
1,0°
Water table
50cm
Forest
1%
Crops
62%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)