HydroBASINS lev08 watershed · #1080626470
Bassin de Béli
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 2 administrative regions across 2 countries : Ansongo, Oudalan
Sub-basin area
1 029,6km²
Upstream area
36 117,2km²
Discharge
30,45m³/s
Mean elev.
268m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Gountouré1147 km²
- Bassin de Béli892 km²
2 dept-equivalent regions (GADM L2)
- 639.4 km²62.3% of basin
- AnsongoGao · Mali386.5 km²37.7% of basin
1 intersecting protected areas
Sahel
IUCN IVSylvo-pastoral Reserve and Partial Wildlife Reserve
653.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
64 distinct species · 360 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 Béli : 2 espèces + 0 bulles famille, 1 interaction GloBI documentées 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°
29,2°C
Annual rain
308mm
Moisture idx (CMI)
-0,86
Runoff
48mm/an
PET
2 133mm
AET
256mm
Mean slope
0,4°
Water table
185cm
Forest
0%
Crops
8%
Urban
0%
Protected
63%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)