HydroBASINS lev08 watershed · #1081320820
Bassin · #1081320820
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 : Kilombero, Namtumbo, Songea Rural, Ulanga
Sub-basin area
2 487,8km²
Upstream area
2 487,9km²
Discharge
30,47m³/s
Mean elev.
785m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1222.4 km²49.3% of basin
- 1059.2 km²42.8% of basin
- 195.5 km²7.9% of basin
- 0.5 km²0.0% of basin
6 intersecting protected areas
Ruhidji/Ifinga O.A.
IUCN Not ReportedOpen area
1007.10 km² overlap
Mwantisi O.A (S)
IUCN Not ReportedOpen area
779.59 km² overlap
Litumbandyosi O.A./Gezamasua F.R.
IUCN Not ReportedOpen area
408.85 km² overlap
Mwantisi O.A. (N) and Furua
IUCN Not ReportedOpen area
282.09 km² overlap
Mbarang'andu WMA
IUCN Not ReportedWildlife Management Area
113.29 km² overlap
Kilombero Valley Floodplain
IUCN Not ReportedWetland of International Importance (Ramsar Site)
70.30 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
49 distinct species · 152 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 3 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 · #1081320820 : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, 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°
22,7°C
Annual rain
1 475mm
Moisture idx (CMI)
-0,04
Runoff
380mm/an
PET
1 539mm
AET
948mm
Mean slope
7,6°
Water table
267cm
Forest
89%
Crops
4%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)