HydroBASINS lev08 watershed · #1081600990
Bassin de Rio Umbeluzi
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 across 2 countries : Boane, Lomahasha, Lugongolweni, Namaacha
Sub-basin area
368,3km²
Upstream area
3 270,2km²
Discharge
19,94m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mlawula321 km²
- Bassin de Mbuluzane304 km²
4 dept-equivalent regions (GADM L2)
- Namaacha209.3 km²56.9% of basin
- 72.7 km²19.8% of basin
- Boane45.5 km²12.4% of basin
- 40.3 km²10.9% of basin
3 intersecting protected areas
Mlawula Nature Reserve
IUCN IINature Reserve
55.49 km² overlap
Lubombo Biosphere Reserve
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
33.07 km² overlap
Shewula
IUCN Not ApplicableOECM
19.46 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 332 distinct species · 9 862 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Rio Umbeluzi : 28 espèces reliées par 23 interactions GloBI sur 3 types (connectance 5.3%, filtre Serrano α=0.2). 2 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°
22,4°C
Annual rain
683mm
Moisture idx (CMI)
-0,57
Runoff
157mm/an
PET
1 578mm
AET
577mm
Mean slope
5,5°
Water table
399cm
Forest
89%
Crops
8%
Urban
0%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)