HydroBASINS lev08 watershed · #4080324770
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 24 administrative regions : Aibetsu, Akabira, Asahikawa, Ashibetsu, Biei +19
Sub-basin area
3 726,9km²
Upstream area
3 726,9km²
Discharge
115,01m³/s
Mean elev.
576m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
24 dept-equivalent regions (GADM L2)
- 950.4 km²25.5% of basin
- 740.7 km²19.8% of basin
- 637.4 km²17.1% of basin
- 258.1 km²6.9% of basin
- 248.1 km²6.6% of basin
- 230.0 km²6.2% of basin
- 202.9 km²5.4% of basin
- 133.4 km²3.6% of basin
16 moreFull L2 list
- Pippu87.6 km² · 2.3%
- Higashikagura65.7 km² · 1.8%
- Ashibetsu37.2 km² · 1.0%
- Kamifurano27.9 km² · 0.7%
- Moseushi26.6 km² · 0.7%
- Takikawa24.2 km² · 0.6%
- Shibetsu City17.7 km² · 0.5%
- Wassamu17.1 km² · 0.5%
- Shintoku10.8 km² · 0.3%
- Horokanai10.8 km² · 0.3%
- Engaru2.8 km² · 0.1%
- Uryū1.4 km² · 0.0%
- Akabira1.3 km² · 0.0%
- Takinoue0.9 km² · 0.0%
- Kamishihoro0.6 km² · 0.0%
- Nakafurano0.3 km² · 0.0%
30 intersecting protected areas
Daisetsuzan
IUCN IINational Park
849.25 km² overlap
Taisetsuzan
IUCN IbForest Ecosystem Reserve
359.55 km² overlap
Daisetsuzan
IUCN IVNational Wildlife Protection Area
219.71 km² overlap
Kamuikotan
IUCN IVPrefectural Wildlife Protection Area
15.29 km² overlap
Shirogane
IUCN IVPrefectural Wildlife Protection Area
14.51 km² overlap
Taisetsusankei Kozantai
IUCN IVBiocenosis Protected Forest
13.32 km² overlap
Etanbetsu
IUCN IVPrefectural Wildlife Protection Area
9.19 km² overlap
Arashiyama
IUCN IVPrefectural Wildlife Protection Area
6.81 km² overlap
Taisetsu genserin
IUCN IVPrefectural Wildlife Protection Area
5.53 km² overlap
21 more protected areassorted by overlap area
Taisetsu Genseirin
IUCN IVBiocenosis Protected Forest
5.34 km² overlap
Nakaaibetsu
IUCN IVPrefectural Wildlife Protection Area
3.91 km² overlap
Ukishima
IUCN IVPrefectural Wildlife Protection Area
3.53 km² overlap
Toma
IUCN IVPrefectural Wildlife Protection Area
3.38 km² overlap
Rubeshibe
IUCN IVPrefectural Wildlife Protection Area
3.27 km² overlap
Rare Population Protected Forest
2.44 km² overlap
Yukomanbetsu
IUCN IVPrefectural Wildlife Protection Area
2.44 km² overlap
Horaisan
IUCN IVPrefectural Wildlife Protection Area
1.88 km² overlap
Asahiyama
IUCN IVPrefectural Wildlife Protection Area
1.53 km² overlap
Daiba
IUCN VEnvironmental Green Space Protection Area(Hokkaido)
1.46 km² overlap
Daiba
IUCN IVPrefectural Wildlife Protection Area
1.12 km² overlap
Teshio dake
IUCN VPrefectural Natural Park
1.08 km² overlap
Horooka
IUCN IVPrefectural Wildlife Protection Area
0.88 km² overlap
Rare Population Protected Forest
0.77 km² overlap
Hirayama
IUCN IVPrefectural Wildlife Protection Area
0.62 km² overlap
Rare Population Protected Forest
0.54 km² overlap
Takioku
IUCN IVPrefectural Wildlife Protection Area
0.51 km² overlap
Rare Population Protected Forest
0.39 km² overlap
Tomisawa
IUCN VEnvironmental Green Space Protection Area(Hokkaido)
0.36 km² overlap
Doritsu 21seikino mori
IUCN IVPrefectural Wildlife Protection Area
0.33 km² overlap
Biei Kanbarui Idenshigen
IUCN IVRare Population Protected Forest
0.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 405 distinct species · 26 750 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 41 interactions GloBI sur 5 types (connectance 6.5%, filtre Serrano α=0.2). 10 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°
4,0°C
Annual rain
1 288mm
Moisture idx (CMI)
0,43
Runoff
908mm/an
PET
707mm
AET
650mm
Mean slope
10,1°
Water table
270cm
Forest
66%
Crops
14%
Urban
5%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)