HydroBASINS lev08 watershed · #1080709030
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
163km²
Upstream area
31 187,9km²
Discharge
52,41m³/s
Mean elev.
263m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #10807044002066 km²
- Bassin du Sourou374 km²
3 dept-equivalent regions (GADM L2)
- 56.1 km²34.6% of basin
- 54.3 km²33.5% of basin
- 52.0 km²32.0% of basin
3 intersecting protected areas
La Vallée du Sourou
IUCN Not ReportedWetland of International Importance (Ramsar Site)
25.71 km² overlap
Confluent du Sourou-Volta Noire
IUCN Not ReportedClassified Forest
2.24 km² overlap
Wetland of International Importance (Ramsar Site)
1.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
123 distinct species · 215 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 : 11 espèces reliées par 18 interactions GloBI sur 4 types (connectance 17.1%, filtre Serrano α=0.2). 4 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°
28,7°C
Annual rain
650mm
Moisture idx (CMI)
-0,68
Runoff
38mm/an
PET
2 018mm
AET
548mm
Mean slope
0,1°
Water table
36cm
Forest
0%
Crops
6%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)