HydroBASINS lev08 watershed · #4080037120
Bassin de 厚沢部川
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 8 administrative regions : Assabu, Esashi Capital, Hokuto, Kaminokuni, Kikonai +3
Sub-basin area
501,7km²
Upstream area
501,7km²
Discharge
13,4m³/s
Mean elev.
229m
Administrative coverage
8 dept-equivalent regions (GADM L2)
- 458.9 km²91.3% of basin
- 33.9 km²6.8% of basin
- 5.9 km²1.2% of basin
- 2.4 km²0.5% of basin
- 0.6 km²0.1% of basin
- 0.5 km²0.1% of basin
- 0.2 km²0.0% of basin
- 0.0 km²0.0% of basin
11 intersecting protected areas
Hiyama
IUCN IVPrefectural Wildlife Protection Area
3.83 km² overlap
Uzuragawa
IUCN IVBiocenosis Protected Forest
3.24 km² overlap
Sakasagawa
IUCN IVPrefectural Wildlife Protection Area
0.37 km² overlap
Rare Population Protected Forest
0.30 km² overlap
Rare Population Protected Forest
0.19 km² overlap
Hiyama
IUCN VPrefectural Natural Park
0.16 km² overlap
Esashi higashiyama
IUCN IVPrefectural Wildlife Protection Area
0.11 km² overlap
Hiyama
IUCN VICoastline Marine Resource Development Area, designated sea area
0.08 km² overlap
Common fishery right area
0.08 km² overlap
2 more protected areassorted by overlap area
Assabu shirooka
IUCN IVPrefectural Wildlife Protection Area
0.05 km² overlap
Assabu
IUCN IVPrefectural Wildlife Protection Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
242 distinct species · 560 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 厚沢部川 : 26 espèces reliées par 52 interactions GloBI sur 5 types (connectance 7.8%, 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°
7,9°C
Annual rain
1 269mm
Moisture idx (CMI)
0,44
Runoff
841mm/an
PET
709mm
AET
688mm
Mean slope
11,2°
Water table
353cm
Forest
84%
Crops
6%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)