HydroBASINS lev08 watershed · #4080042720
Bassin de 森下川
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 6 administrative regions : Kahoku, Kanazawa, Nanto, Oyabe, Tsubata +1
Sub-basin area
368,9km²
Upstream area
369,1km²
Discharge
21,33m³/s
Mean elev.
138m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 220.8 km²59.8% of basin
- 84.1 km²22.8% of basin
- 59.9 km²16.2% of basin
- 3.5 km²0.9% of basin
- 0.4 km²0.1% of basin
- 0.3 km²0.1% of basin
15 intersecting protected areas
Io Zen (ishikawa)
IUCN VPrefectural Natural Park
29.93 km² overlap
Tsubata
IUCN IVPrefectural Wildlife Protection Area
17.03 km² overlap
Utatsuyama
IUCN IVPrefectural Wildlife Protection Area
7.64 km² overlap
Kahokugata
IUCN IVPrefectural Wildlife Protection Area
5.24 km² overlap
Kigoyama
IUCN IVPrefectural Wildlife Protection Area
3.01 km² overlap
Minamikanda
IUCN IVPrefectural Wildlife Protection Area
0.45 km² overlap
Io Zen (toyama)
IUCN VPrefectural Natural Park
0.36 km² overlap
Takamatsu
IUCN IVPrefectural Wildlife Protection Area
0.32 km² overlap
Iozen
IUCN IVPrefectural Wildlife Protection Area
0.31 km² overlap
6 more protected areassorted by overlap area
Kurikara
IUCN IVPrefectural Wildlife Protection Area
0.24 km² overlap
Sotoura kaga
IUCN VICoastline Marine Resource Development Area, designated sea area
0.11 km² overlap
Kahoku kaigan
IUCN IVPrefectural Wildlife Protection Area
0.06 km² overlap
Special green space conservation districts
0.04 km² overlap
Hakusan Mountain Range
IUCN VGreen Corridor
0.04 km² overlap
Special green space conservation districts
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 936 distinct species · 14 338 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 森下川 : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 5 types (connectance 12.1%, filtre Serrano α=0.2). 11 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°
13,5°C
Annual rain
2 470mm
Moisture idx (CMI)
0,61
Runoff
1 713mm/an
PET
954mm
AET
954mm
Mean slope
7,4°
Water table
190cm
Forest
65%
Crops
5%
Urban
31%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)