HydroBASINS lev08 watershed · #1081586120
Bassin de Steelpoort
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 1 administrative regions : Sekhukhune
Sub-basin area
338,6km²
Upstream area
3 194,2km²
Discharge
4,09m³/s
Mean elev.
1 125m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Steelpoortrivier1717 km²
- Bassin de Steelpoort372 km²
1 dept-equivalent regions (GADM L2)
- 337.9 km²100.0% of basin
2 intersecting protected areas
De Hoop Private Nature Reserve
IUCN Not ReportedNature Reserve
19.93 km² overlap
De Hoop Dam Protected Environment
IUCN Not ReportedProtected Environment
3.97 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
579 distinct species · 2 203 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Steelpoort : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 15 interactions GloBI sur 2 types (connectance 7.9%, 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°
18,1°C
Annual rain
730mm
Moisture idx (CMI)
-0,53
Runoff
34mm/an
PET
1 571mm
AET
601mm
Mean slope
9,7°
Water table
656cm
Forest
8%
Crops
22%
Urban
10%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)