HydroBASINS lev08 watershed · #1080967310
Bassin de Asu
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 : Ado, Ishielu, Isi-Uzo, Nkanu East, Ohaukwu
Sub-basin area
640,2km²
Upstream area
1 754,7km²
Discharge
54,9m³/s
Mean elev.
100m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080958750593 km²
- Bassin · #1080958620521 km²
5 dept-equivalent regions (GADM L2)
- 381.8 km²59.9% of basin
- 195.4 km²30.6% of basin
- 49.0 km²7.7% of basin
- 6.9 km²1.1% of basin
- 4.4 km²0.7% of basin
1 intersecting protected areas
Agala
IUCN Not ReportedForest Reserve
4.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
74 distinct species · 103 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 6 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 Asu : 6 espèces reliées par 3 interactions GloBI sur 2 types (connectance 20.0%, 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°
27,1°C
Annual rain
1 741mm
Moisture idx (CMI)
0,05
Runoff
1 079mm/an
PET
1 658mm
AET
1 125mm
Mean slope
1,1°
Water table
60cm
Forest
7%
Crops
52%
Urban
6%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)