HydroBASINS lev08 watershed · #1081217380
Bassin de Ruzizi
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 : Buterere, Gihanga, Lake Tanganyika, Mutimbuzi
Sub-basin area
53,7km²
Upstream area
13 519,3km²
Discharge
94,08m³/s
Mean elev.
773m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sange972 km²
- Bassin de Mpanda690 km²
5 dept-equivalent regions (GADM L2)
- 31.0 km²58.0% of basin
- Lake Tanganyika18.0 km²33.7% of basin
- Lake Tanganyika4.1 km²7.7% of basin
- 0.3 km²0.6% of basin
- GihangaBubanza · Burundi0.1 km²0.1% of basin
1 intersecting protected areas
Rusizi
IUCN IINational Park
12.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
524 distinct species · 2 666 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Ruzizi : 29 espèces reliées par 45 interactions GloBI sur 3 types (connectance 6.4%, filtre Serrano α=0.2). 9 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°
24,7°C
Annual rain
903mm
Moisture idx (CMI)
-0,46
Runoff
215mm/an
PET
1 676mm
AET
768mm
Mean slope
0,1°
Water table
14cm
Forest
12%
Crops
18%
Urban
23%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)