HydroBASINS lev08 watershed · #2080521140
Bassin du Clain
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 : Vienne
Sub-basin area
30,3km²
Upstream area
917,9km²
Discharge
13,64m³/s
Mean elev.
118m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Dive492 km²
- Bassin du Clain396 km²
1 dept-equivalent regions (GADM L2)
- 30.4 km²100.0% of basin
7 communes (GADM L5)Available for FRA, RWA
- Vivonne20.74 km²50% commune
- Anché5.33 km²33% commune
- Voulon3.61 km²44% commune
- Château-Larcher0.40 km²3% commune
- Marnay0.26 km²1% commune
- Champagné-Saint-Hilaire0.05 km²0% commune
- Celle-Lévescault0.00 km²0% commune
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 789 distinct species · 32 695 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 49 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 du Clain : 15 espèces reliées par 282 interactions GloBI sur 5 types (connectance 13.6%, filtre Serrano α=0.2). 50 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
776mm
Moisture idx (CMI)
-0,13
Runoff
402mm/an
PET
893mm
AET
612mm
Mean slope
1,6°
Water table
85cm
Forest
8%
Crops
54%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)