HydroBASINS lev08 watershed · #1081032520
Bassin de Polo
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 2 administrative regions : Lekié, Mbam et Kim
Sub-basin area
448,1km²
Upstream area
79 657,9km²
Discharge
1 014,1m³/s
Mean elev.
482m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Makoko1033 km²
- Bassin de Kouma100 km²
2 dept-equivalent regions (GADM L2)
- 329.6 km²73.9% of basin
- 116.5 km²26.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
96 distinct species · 164 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Polo : 20 espèces reliées par 13 interactions GloBI sur 3 types (connectance 6.8%, 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°
25,1°C
Annual rain
1 616mm
Moisture idx (CMI)
0,02
Runoff
421mm/an
PET
1 590mm
AET
1 180mm
Mean slope
3,5°
Water table
155cm
Forest
95%
Crops
7%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)