HydroBASINS lev08 watershed · #4080042890
Bassin de 常願寺川
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 : Hida, Kamiichi, Tateyama, Toyama
Sub-basin area
402,7km²
Upstream area
402,7km²
Discharge
18,33m³/s
Mean elev.
1 192m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 300.0 km²74.5% of basin
- TateyamaToyama · Japan96.5 km²24.0% of basin
- 5.8 km²1.4% of basin
- 0.2 km²0.1% of basin
15 intersecting protected areas
Kita alps
IUCN IVNational Wildlife Protection Area
150.79 km² overlap
Chubusangaku
IUCN IINational Park
141.32 km² overlap
Arimine
IUCN VPrefectural Natural Park
111.61 km² overlap
Arimine
IUCN IVPrefectural Wildlife Protection Area
71.03 km² overlap
Oguchigawa
IUCN IVPrefectural Wildlife Protection Area
10.38 km² overlap
Tateyama Midagahara and Dainichidaira
IUCN Not ReportedWetland of International Importance (Ramsar Site)
5.84 km² overlap
Otsujiyama
IUCN IVPrefectural Wildlife Protection Area
0.88 km² overlap
Zasunbo
IUCN IVPrefectural Wildlife Protection Area
0.82 km² overlap
Tateyama Ooishirabiso
IUCN IVRare Population Protected Forest
0.71 km² overlap
6 more protected areassorted by overlap area
Joganjigawa kako
IUCN IVPrefectural Wildlife Protection Area
0.53 km² overlap
Kitanomata
IUCN IVPrefectural Wildlife Protection Area
0.28 km² overlap
Kitanomata-Mizunotaira
IUCN VPrefectural Nature Conservation Area
0.27 km² overlap
Tateyamasugi Idenshigen
IUCN IVRare Population Protected Forest
0.18 km² overlap
Rare Population Protected Forest
0.15 km² overlap
Common fishery right area
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 364 distinct species · 15 274 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 常願寺川 : 16 espèces reliées par 43 interactions GloBI sur 6 types (connectance 10.6%, filtre Serrano α=0.2). 13 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°
7,2°C
Annual rain
1 924mm
Moisture idx (CMI)
0,57
Runoff
1 449mm/an
PET
817mm
AET
815mm
Mean slope
19,1°
Water table
563cm
Forest
53%
Crops
39%
Urban
12%
Protected
66%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)