HydroBASINS lev08 watershed · #1081582310
Bassin de Ohrigstadrivier
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 3 administrative regions : Ehlanzeni, Mopani, Sekhukhune
Sub-basin area
390km²
Upstream area
1 315,9km²
Discharge
4,65m³/s
Mean elev.
1 170m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ohrigstadrivier399 km²
- Bassin de Kaspersnekrivier171 km²
3 dept-equivalent regions (GADM L2)
- 303.5 km²78.0% of basin
- 81.6 km²21.0% of basin
- 4.0 km²1.0% of basin
1 intersecting protected areas
Blyderivierspoort Nature Reserve
IUCN Not ReportedNature Reserve
66.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 279 distinct species · 8 104 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Ohrigstadrivier : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 5 types (connectance 5.6%, filtre Serrano α=0.2). 7 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°
17,6°C
Annual rain
932mm
Moisture idx (CMI)
-0,35
Runoff
113mm/an
PET
1 446mm
AET
812mm
Mean slope
12,7°
Water table
720cm
Forest
79%
Crops
14%
Urban
0%
Protected
69%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)