HydroBASINS lev08 watershed · #4080295550
Bassin de 名寄川
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 5 administrative regions : Nayoro, Shibetsu City, Shimokawa, Takinoue, Ōmu
Sub-basin area
715,8km²
Upstream area
715,8km²
Discharge
13,64m³/s
Mean elev.
403m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 561.7 km²78.3% of basin
- 127.6 km²17.8% of basin
- 16.2 km²2.3% of basin
- 11.8 km²1.6% of basin
- 0.1 km²0.0% of basin
12 intersecting protected areas
Shinshimokawa
IUCN IVPrefectural Wildlife Protection Area
5.13 km² overlap
Ichinohashi
IUCN IVPrefectural Wildlife Protection Area
3.91 km² overlap
Teshio dake
IUCN VPrefectural Natural Park
2.33 km² overlap
Matsuyamapiyashiri
IUCN VPrefectural Nature Conservation Area
0.57 km² overlap
Penke
IUCN VEnvironmental Green Space Protection Area(Hokkaido)
0.37 km² overlap
Kyokuto
IUCN IVPrefectural Wildlife Protection Area
0.33 km² overlap
Rare Population Protected Forest
0.31 km² overlap
Maesanru Ezomatsu Idenshigen
IUCN IVRare Population Protected Forest
0.26 km² overlap
Kyokutou
IUCN VEnvironmental Green Space Protection Area(Hokkaido)
0.21 km² overlap
3 more protected areassorted by overlap area
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
288 distinct species · 610 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 名寄川 : 15 espèces reliées par 26 interactions GloBI sur 4 types (connectance 10.3%, filtre Serrano α=0.2). 8 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°
4,2°C
Annual rain
1 193mm
Moisture idx (CMI)
0,44
Runoff
718mm/an
PET
665mm
AET
635mm
Mean slope
11,8°
Water table
330cm
Forest
93%
Crops
1%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)