HydroBASINS lev08 watershed · #1081616280
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 Ruth Segomotsi Mompati, Lejweleputswa
Sub-basin area
462,8km²
Upstream area
18 522,8km²
Discharge
11,91m³/s
Mean elev.
1 258m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Vet River1470 km²
- Bassin · #1081617700998 km²
2 dept-equivalent regions (GADM L2)
- 452.9 km²98.0% of basin
- 9.2 km²2.0% of basin
8 intersecting protected areas
Sandveld Nature Reserve
IUCN Not ReportedNature Reserve
115.79 km² overlap
Lake Warden Game Reserve
IUCN Not ReportedNature Reserve
45.93 km² overlap
Lake Warden Reserve
IUCN Not ReportedNature Reserve
29.27 km² overlap
Kareeboombult Nature Reserve
IUCN Not ReportedNature Reserve
8.56 km² overlap
Winterson Game Reserve
IUCN Not ReportedNature Reserve
5.05 km² overlap
Greylingsdrif Private Nature Reserve
IUCN Not ReportedNature Reserve
4.51 km² overlap
Duikerbos Private Nature Reserve
IUCN Not ReportedNature Reserve
4.51 km² overlap
Jozina Game Reserve
IUCN Not ReportedNature Reserve
2.40 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
419 distinct species · 12 298 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 : 11 espèces reliées par 11 interactions GloBI sur 2 types (connectance 14.1%, 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°
17,5°C
Annual rain
502mm
Moisture idx (CMI)
-0,70
Runoff
37mm/an
PET
1 653mm
AET
424mm
Mean slope
0,3°
Water table
204cm
Forest
1%
Crops
42%
Urban
0%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)