HydroBASINS lev08 watershed · #1081634210
Bassin de Riet 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 : Xhariep
Sub-basin area
50,7km²
Upstream area
1 341,6km²
Discharge
0,47m³/s
Mean elev.
1 395m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Riet River695 km²
- Bassin de Riet River597 km²
1 dept-equivalent regions (GADM L2)
- 50.6 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
98 distinct species · 233 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 Riet River : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 15 interactions GloBI sur 3 types (connectance 8.8%, 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°
15,4°C
Annual rain
479mm
Moisture idx (CMI)
-0,68
Runoff
15mm/an
PET
1 518mm
AET
405mm
Mean slope
1,3°
Water table
235cm
Forest
0%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)