HydroBASINS lev08 watershed · #1080704230
Bassin du Sourou
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 3 administrative regions : Kossi, Nayala, Sourou
Sub-basin area
374,2km²
Upstream area
28 959,3km²
Discharge
50,46m³/s
Mean elev.
261m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Sourou1099 km²
- Bassin du Sourou144 km²
3 dept-equivalent regions (GADM L2)
- 235.0 km²63.0% of basin
- 130.7 km²35.1% of basin
- 7.1 km²1.9% of basin
1 intersecting protected areas
La Vallée du Sourou
IUCN Not ReportedWetland of International Importance (Ramsar Site)
84.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
177 distinct species · 249 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 3 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 Sourou : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
28,7°C
Annual rain
616mm
Moisture idx (CMI)
-0,69
Runoff
33mm/an
PET
2 017mm
AET
519mm
Mean slope
0,1°
Water table
31cm
Forest
0%
Crops
10%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)