HydroBASINS lev08 watershed · #1081219000
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 3 administrative regions : Divénié, Kibangou, Mossendjo
Sub-basin area
2 371,1km²
Upstream area
2 371,1km²
Discharge
35,79m³/s
Mean elev.
289m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1866.8 km²79.1% of basin
- 381.5 km²16.2% of basin
- 112.4 km²4.8% of basin
1 intersecting protected areas
Loubetsi-Nyanga
IUCN Not ReportedWetland of International Importance (Ramsar Site)
106.84 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
55 distinct species · 151 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°
24,6°C
Annual rain
1 486mm
Moisture idx (CMI)
-0,06
Runoff
476mm/an
PET
1 577mm
AET
1 188mm
Mean slope
4,2°
Water table
185cm
Forest
99%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)