HydroBASINS lev08 watershed · #1080951370
Bassin de Ofin
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 21 administrative regions : Afigya-Kwabre North, Afigya-Kwabre South, Ahafo-Ano South East, Atwima-Kwanwoma, Atwima-Mponua +16
Sub-basin area
1 999,9km²
Upstream area
2 000,4km²
Discharge
15,35m³/s
Mean elev.
281m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
21 dept-equivalent regions (GADM L2)
- 442.2 km²22.2% of basin
- 369.3 km²18.5% of basin
- 305.8 km²15.4% of basin
- 223.0 km²11.2% of basin
- 196.3 km²9.9% of basin
- 184.5 km²9.3% of basin
- 50.5 km²2.5% of basin
- 47.8 km²2.4% of basin
13 moreFull L2 list
- Ahafo-Ano South East31.6 km² · 1.6%
- Kwadaso29.3 km² · 1.5%
- Suame27.3 km² · 1.4%
- Mampong25.5 km² · 1.3%
- Kwabre East22.4 km² · 1.1%
- Old Tafo12.5 km² · 0.6%
- Ejura-Sekyedumase5.9 km² · 0.3%
- Offinso North5.6 km² · 0.3%
- Sekyere East4.8 km² · 0.2%
- Juaben2.6 km² · 0.1%
- Sekyere Central2.6 km² · 0.1%
- Sekyere Kumawu1.6 km² · 0.1%
- Kumasi0.1 km² · 0.0%
9 intersecting protected areas
Gianima
IUCN IVForest Reserve
17.90 km² overlap
Asufu Shelterbelt West
IUCN IIIForest Reserve
16.22 km² overlap
Wetland of International Importance (Ramsar Site)
13.11 km² overlap
Ofin Headwaters
IUCN IIIForest Reserve
10.78 km² overlap
Asufu Shelterbelt East
IUCN VIForest Reserve
10.40 km² overlap
Afram Headwaters
IUCN IIIForest Reserve
6.91 km² overlap
Opro River
IUCN IIIForest Reserve
5.83 km² overlap
Ongwam Blk I, II & III
IUCN IVForest Reserve
1.58 km² overlap
Ongwam
IUCN IVForest Reserve
0.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
707 distinct species · 2 298 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Ofin : 30 espèces reliées par 38 interactions GloBI sur 4 types (connectance 5.4%, filtre Serrano α=0.2). 8 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°
25,5°C
Annual rain
1 352mm
Moisture idx (CMI)
-0,17
Runoff
247mm/an
PET
1 631mm
AET
1 145mm
Mean slope
2,7°
Water table
124cm
Forest
2%
Crops
21%
Urban
20%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)