HydroBASINS lev08 watershed · #1080927890
Bassin de Afram
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 4 administrative regions : Ejura-Sekyedumase, Nkoranza South, Offinso, Offinso North
Sub-basin area
582,8km²
Upstream area
582,8km²
Discharge
3,71m³/s
Mean elev.
264m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 371.6 km²64.0% of basin
- 79.5 km²13.7% of basin
- 67.5 km²11.6% of basin
- 61.7 km²10.6% of basin
2 intersecting protected areas
Afram Headwaters
IUCN IIIForest Reserve
84.35 km² overlap
Awura
IUCN IVForest Reserve
28.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
80 distinct species · 108 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 8 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 Afram : 7 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 6 interactions GloBI sur 2 types (connectance 21.4%, 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°
25,8°C
Annual rain
1 245mm
Moisture idx (CMI)
-0,25
Runoff
225mm/an
PET
1 669mm
AET
1 054mm
Mean slope
2,4°
Water table
196cm
Forest
34%
Crops
34%
Urban
1%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)