HydroBASINS lev08 watershed · #4080042620
Bassin de 九頭竜川
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 : Awara, Sakai City
Sub-basin area
5,1km²
Upstream area
2 896,1km²
Discharge
171,41m³/s
Mean elev.
4m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de 竹田川201 km²
- Bassin de 九頭竜川81 km²
2 dept-equivalent regions (GADM L2)
- Sakai CityFukui · Japan4.8 km²94.2% of basin
- 0.3 km²5.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
78 distinct species · 310 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 九頭竜川 : 15 espèces reliées par 25 interactions GloBI sur 3 types (connectance 13.2%, filtre Serrano α=0.2). 5 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
2 473mm
Moisture idx (CMI)
0,61
Runoff
1 706mm/an
PET
972mm
AET
967mm
Mean slope
0,5°
Water table
17cm
Forest
0%
Crops
29%
Urban
86%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)