HydroBASINS lev08 watershed · #1081615470
Bassin de Vaal River
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 : Dr Kenneth Kaunda, Lejweleputswa
Sub-basin area
793,8km²
Upstream area
82 048,5km²
Discharge
92,4m³/s
Mean elev.
1 304m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Vaal River896 km²
- Bassin de Vaal River194 km²
2 dept-equivalent regions (GADM L2)
- 588.6 km²74.3% of basin
- 203.9 km²25.7% of basin
7 intersecting protected areas
Modderfontein Reserve
IUCN Not ReportedNature Reserve
30.23 km² overlap
Wolwespruit Nature Reserve
IUCN Not ReportedNature Reserve
16.95 km² overlap
Clerkstroom Private Nature Reserve
IUCN Not ReportedNature Reserve
15.73 km² overlap
Stroomdrift Private Nature Reserve
IUCN Not ReportedNature Reserve
14.24 km² overlap
Las Vacus Private Nature Reserve
IUCN Not ReportedNature Reserve
12.12 km² overlap
Bloudrif Reserve
IUCN Not ReportedNature Reserve
9.43 km² overlap
Sandveld Nature Reserve
IUCN Not ReportedNature Reserve
5.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
265 distinct species · 1 601 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Vaal River : 32 espèces reliées par 29 interactions GloBI sur 3 types (connectance 4.9%, filtre Serrano α=0.2). 3 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°
17,3°C
Annual rain
571mm
Moisture idx (CMI)
-0,64
Runoff
33mm/an
PET
1 588mm
AET
482mm
Mean slope
0,6°
Water table
408cm
Forest
0%
Crops
13%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)