HydroBASINS lev08 watershed · #4080329050
Bassin de 徳富川
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 8 administrative regions : Ishikari, Mashike, Moseushi, Shintotsukawa, Takikawa +3
Sub-basin area
610,6km²
Upstream area
5 999,3km²
Discharge
198,89m³/s
Mean elev.
301m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 石狩川3727 km²
- Bassin de 雨竜川1662 km²
8 dept-equivalent regions (GADM L2)
- 452.8 km²74.0% of basin
- 74.9 km²12.2% of basin
- 64.4 km²10.5% of basin
- 9.9 km²1.6% of basin
- 9.8 km²1.6% of basin
- 0.0 km²0.0% of basin
- 0.0 km²0.0% of basin
- 0.0 km²0.0% of basin
4 intersecting protected areas
Quasi National Park
109.89 km² overlap
Oshirarika
IUCN IVPrefectural Wildlife Protection Area
4.47 km² overlap
Uryunuma-shitsugen
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2.72 km² overlap
Uryunuma
IUCN IVPrefectural Wildlife Protection Area
2.67 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
189 distinct species · 326 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 徳富川 : 28 espèces reliées par 32 interactions GloBI sur 4 types (connectance 5.7%, filtre Serrano α=0.2). 6 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°
5,9°C
Annual rain
1 293mm
Moisture idx (CMI)
0,43
Runoff
1 140mm/an
PET
736mm
AET
658mm
Mean slope
9,2°
Water table
243cm
Forest
80%
Crops
9%
Urban
4%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)