HydroBASINS lev08 watershed · #4080586150
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 4 administrative regions : Gujō, Motosu, Seki, Ōno
Sub-basin area
191,7km²
Upstream area
191,7km²
Discharge
9,15m³/s
Mean elev.
852m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- ŌnoFukui · Japan190.6 km²99.4% of basin
- 0.8 km²0.4% of basin
- 0.2 km²0.1% of basin
- 0.1 km²0.1% of basin
8 intersecting protected areas
Okuetsu kogen
IUCN VPrefectural Natural Park
55.00 km² overlap
Kuzuryu dam
IUCN IVPrefectural Wildlife Protection Area
10.40 km² overlap
Heikedake
IUCN IVPrefectural Wildlife Protection Area
6.50 km² overlap
Esumi Mountains
IUCN VGreen Corridor
0.80 km² overlap
Rare Population Protected Forest
0.53 km² overlap
Uchimibora
IUCN IVPrefectural Wildlife Protection Area
0.08 km² overlap
Okunagara gawa
IUCN VPrefectural Natural Park
0.02 km² overlap
Uchibamibora
IUCN VPrefectural Nature Conservation Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
206 distinct species · 350 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 10 interactions GloBI sur 4 types (connectance 8.3%, 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°
9,4°C
Annual rain
2 240mm
Moisture idx (CMI)
0,62
Runoff
1 505mm/an
PET
855mm
AET
855mm
Mean slope
20,0°
Water table
685cm
Forest
100%
Crops
0%
Urban
0%
Protected
33%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)