HydroBASINS lev08 watershed · #7080690650
Bassin de Santee 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 3 administrative regions : Calhoun, Clarendon, Orangeburg
Sub-basin area
84,7km²
Upstream area
37 088,8km²
Discharge
552,06m³/s
Mean elev.
44m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #7080689960193 km²
- Bassin de Santee River128 km²
3 dept-equivalent regions (GADM L2)
- 56.3 km²66.4% of basin
- Calhoun24.8 km²29.2% of basin
- 3.7 km²4.3% of basin
1 intersecting protected areas
Reserve Program
0.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
545 distinct species · 82 908 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Santee River : 22 espèces reliées par 76 interactions GloBI sur 4 types (connectance 12.8%, filtre Serrano α=0.2). 13 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°
17,7°C
Annual rain
1 183mm
Moisture idx (CMI)
-0,16
Runoff
455mm/an
PET
1 403mm
AET
1 000mm
Mean slope
0,6°
Water table
37cm
Forest
12%
Crops
27%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)