HydroBASINS lev08 watershed · #1080877440
Bassin de Black Volta
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 across 2 countries : Banda, Bole, Gontougo
Sub-basin area
320,6km²
Upstream area
126 709,2km²
Discharge
225,45m³/s
Mean elev.
227m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080872220251 km²
- Bassin de Black Volta130 km²
3 dept-equivalent regions (GADM L2)
- 160.2 km²50.2% of basin
- 109.4 km²34.3% of basin
- 49.7 km²15.6% of basin
1 intersecting protected areas
Bui
IUCN IINational Park
261.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
21 distinct species · 30 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 2 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 Black Volta : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, 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°
26,7°C
Annual rain
1 097mm
Moisture idx (CMI)
-0,38
Runoff
164mm/an
PET
1 767mm
AET
928mm
Mean slope
1,0°
Water table
162cm
Forest
99%
Crops
9%
Urban
0%
Protected
84%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)