HydroBASINS lev08 watershed · #4080343370
Bassin de 石狩川
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 2 administrative regions : Ebetsu, Tōbetsu
Sub-basin area
15,4km²
Upstream area
11 555,8km²
Discharge
403,15m³/s
Mean elev.
6m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 石狩川1736 km²
- Bassin de 夕張川1167 km²
2 dept-equivalent regions (GADM L2)
- 14.9 km²96.7% of basin
- 0.5 km²3.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
61 distinct species · 144 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 石狩川 : 26 espèces reliées par 22 interactions GloBI sur 5 types (connectance 6.3%, 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°
7,7°C
Annual rain
1 157mm
Moisture idx (CMI)
0,33
Runoff
1 046mm/an
PET
773mm
AET
661mm
Mean slope
0,2°
Water table
2cm
Forest
2%
Crops
22%
Urban
19%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)