HydroBASINS lev08 watershed · #1081232790
Bassin de Niari
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 4 administrative regions across 2 countries : Boko-Songho, Luozi, Madingou, Mfouati
Sub-basin area
529,9km²
Upstream area
529,9km²
Discharge
6,45m³/s
Mean elev.
376m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 276.8 km²52.5% of basin
- 183.2 km²34.7% of basin
- 66.2 km²12.5% of basin
- 1.3 km²0.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 distinct species · 6 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°
24,2°C
Annual rain
1 250mm
Moisture idx (CMI)
-0,17
Runoff
385mm/an
PET
1 506mm
AET
1 042mm
Mean slope
5,3°
Water table
260cm
Forest
33%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)