HydroBASINS lev08 watershed · #1080919030
Bassin · #1080919030
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 5 administrative regions : Ejura-Sekyedumase, Nkoranza South, Offinso, Offinso North, Tano South
Sub-basin area
1 259,2km²
Upstream area
1 259,5km²
Discharge
7,26m³/s
Mean elev.
272m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 635.4 km²50.7% of basin
- 486.8 km²38.8% of basin
- 97.0 km²7.7% of basin
- 34.2 km²2.7% of basin
- 0.4 km²0.0% of basin
6 intersecting protected areas
Opro River
IUCN IIIForest Reserve
116.75 km² overlap
Afrensu Brohuma
IUCN VIForest Reserve
54.83 km² overlap
Asubima
IUCN VIForest Reserve
34.57 km² overlap
Afram Headwaters
IUCN IIIForest Reserve
32.29 km² overlap
Kwamisa
IUCN VIForest Reserve
29.75 km² overlap
Pru Shelterbelt
IUCN IIIForest Reserve
16.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
432 distinct species · 5 200 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 · #1080919030 : 10 espèces reliées par 8 interactions GloBI sur 3 types (connectance 14.5%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
25,7°C
Annual rain
1 250mm
Moisture idx (CMI)
-0,24
Runoff
224mm/an
PET
1 653mm
AET
1 058mm
Mean slope
2,5°
Water table
187cm
Forest
32%
Crops
38%
Urban
2%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)