HydroBASINS lev08 watershed · #1080893840
Bassin de Volta
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 : North East Gonja, Pru East, Sene West
Sub-basin area
710,1km²
Upstream area
275 062,6km²
Discharge
688,4m³/s
Mean elev.
103m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Volta260 km²
- Bassin de Volta8 km²
3 dept-equivalent regions (GADM L2)
- 547.5 km²77.4% of basin
- 153.8 km²21.7% of basin
- 5.8 km²0.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
249 distinct species · 464 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Volta : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 3 types (connectance 7.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,8°C
Annual rain
1 211mm
Moisture idx (CMI)
-0,34
Runoff
162mm/an
PET
1 841mm
AET
1 012mm
Mean slope
0,6°
Water table
98cm
Forest
46%
Crops
30%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)