HydroBASINS lev08 watershed · #1081627810
Bassin de Orange 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 1 administrative regions : Namakwa
Sub-basin area
282,5km²
Upstream area
4 479,6km²
Discharge
1,49m³/s
Mean elev.
605m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 8 basins
- Bassin · #10800454702510 km²
- Bassin · #10800476801655 km²
- Bassin · #10800479401564 km²
- Bassin · #1080051010980 km²
- Bassin · #1081628690583 km²
- + 3 more
1 dept-equivalent regions (GADM L2)
- 282.1 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
375 distinct species · 590 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Orange River : 17 espèces reliées par 11 interactions GloBI sur 4 types (connectance 7.2%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
20,0°C
Annual rain
93mm
Moisture idx (CMI)
-0,95
Runoff
11mm/an
PET
1 747mm
AET
76mm
Mean slope
4,2°
Water table
936cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)