HydroBASINS lev08 watershed · #7080041920
Bassin de Appomattox 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 4 administrative regions : Chesterfield, Colonial Heights, Hopewell, Prince George
Sub-basin area
87,3km²
Upstream area
4 167km²
Discharge
56,16m³/s
Mean elev.
29m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Appomattox River635 km²
- Bassin de Swift Creek464 km²
4 dept-equivalent regions (GADM L2)
- Chesterfield61.6 km²70.5% of basin
- 15.0 km²17.1% of basin
- 9.9 km²11.4% of basin
- 0.7 km²0.8% of basin
2 intersecting protected areas
Johnson Marsh
IUCN VState Wildlife Management Area
0.32 km² overlap
Swift Creek
IUCN IIILocal Park
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
578 distinct species · 30 772 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Appomattox River : 34 espèces reliées par 103 interactions GloBI sur 4 types (connectance 10.4%, filtre Serrano α=0.2). 11 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°
14,3°C
Annual rain
1 111mm
Moisture idx (CMI)
-0,10
Runoff
417mm/an
PET
1 236mm
AET
906mm
Mean slope
1,2°
Water table
83cm
Forest
53%
Crops
7%
Urban
54%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)