HydroBASINS lev08 watershed · #1080792830
Bassin de Nazinon
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 7 administrative regions across 2 countries : Bawku West, Bongo, Boulgou, Nabdam, Nahouri +2
Sub-basin area
1 680,1km²
Upstream area
11 401,9km²
Discharge
21,42m³/s
Mean elev.
234m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nazinon1560 km²
- Bassin de Nazinon321 km²
7 dept-equivalent regions (GADM L2)
- 555.5 km²33.2% of basin
- 343.3 km²20.5% of basin
- 216.3 km²12.9% of basin
- 194.9 km²11.6% of basin
- 136.1 km²8.1% of basin
- 124.7 km²7.5% of basin
- 102.6 km²6.1% of basin
5 intersecting protected areas
Nazinon
IUCN Not ReportedEcological Corridor
319.42 km² overlap
Red Volta West
IUCN IVForest Reserve
162.18 km² overlap
Red Volta East
IUCN IVForest Reserve
120.56 km² overlap
Pô dit Kaboré Tambi
IUCN IINational Park
3.26 km² overlap
Complexe d’Aires Protégées Pô-Nazinga-Sissili
IUCN Not ReportedWetland of International Importance (Ramsar Site)
3.26 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
282 distinct species · 1 105 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Nazinon : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 2 bulles famille, 27 interactions GloBI documentées sur 4 types (connectance 4.8%, filtre Serrano α=0.2). Les 2 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
28,0°C
Annual rain
906mm
Moisture idx (CMI)
-0,53
Runoff
121mm/an
PET
1 928mm
AET
764mm
Mean slope
1,0°
Water table
161cm
Forest
19%
Crops
15%
Urban
0%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)