HydroBASINS lev08 watershed · #1080827040
Bassin de Oli
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 : Borgu, Magama, Mashegu
Sub-basin area
14,1km²
Upstream area
1 575 805,9km²
Discharge
1 419,5m³/s
Mean elev.
124m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Niger1062 km²
- Bassin du Niger44 km²
3 dept-equivalent regions (GADM L2)
- 5.2 km²37.2% of basin
- 4.9 km²35.2% of basin
- 3.9 km²27.6% of basin
1 intersecting protected areas
Kainji Lake
IUCN IINational Park
0.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 distinct species · 8 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
27,6°C
Annual rain
1 102mm
Moisture idx (CMI)
-0,42
Runoff
190mm/an
PET
1 917mm
AET
888mm
Mean slope
1,3°
Water table
117cm
Forest
12%
Crops
10%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)