HydroBASINS lev08 watershed · #4080480290
Bassin de 和賀川
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 11 administrative regions : Daisen, Hanamaki, Higashinaruse, Kanegasaki, Kitakami +6
Sub-basin area
968,6km²
Upstream area
968,7km²
Discharge
33,4m³/s
Mean elev.
478m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
11 dept-equivalent regions (GADM L2)
- 591.6 km²61.0% of basin
- 305.8 km²31.5% of basin
- 47.8 km²4.9% of basin
- KanegasakiIwate · Japan5.7 km²0.6% of basin
- ShizukuishiIwate · Japan3.5 km²0.4% of basin
- 3.5 km²0.4% of basin
- 3.4 km²0.3% of basin
- 3.0 km²0.3% of basin
3 moreFull L2 list
- Misato2.8 km² · 0.3%
- Ōshū2.0 km² · 0.2%
- Higashinaruse0.3 km² · 0.0%
17 intersecting protected areas
Ouu Mountain Range
IUCN VGreen Corridor
39.63 km² overlap
Kurikoma
IUCN IIQuasi National Park
35.77 km² overlap
Yakeishidake
IUCN IVBiocenosis Protected Forest
34.08 km² overlap
Yakeishi renpo
IUCN IVPrefectural Wildlife Protection Area
32.07 km² overlap
Wagadake
IUCN IVBiocenosis Protected Forest
24.18 km² overlap
Yuda Onsenkyo
IUCN VPrefectural Natural Park
17.00 km² overlap
Waga dake
IUCN IbNature Conservation Area
12.94 km² overlap
Nishiwagamachi wagadake
IUCN IVPrefectural Wildlife Protection Area
12.64 km² overlap
Yuda dam
IUCN IVPrefectural Wildlife Protection Area
8.59 km² overlap
8 more protected areassorted by overlap area
Busugamori
IUCN IVPrefectural Wildlife Protection Area
4.96 km² overlap
Nishiwagamachi yumoto
IUCN IVPrefectural Wildlife Protection Area
4.70 km² overlap
Busugamori
IUCN IVBiocenosis Protected Forest
2.93 km² overlap
Magi mahiru
IUCN VPrefectural Natural Park
0.68 km² overlap
Wagadake
IUCN IVPrefectural Wildlife Protection Area
0.40 km² overlap
Nishiwagacho shigaraiyama
IUCN IVPrefectural Wildlife Protection Area
0.39 km² overlap
Nagahashi Sugi
IUCN IVRare Population Protected Forest
0.10 km² overlap
Akakurasawayama
IUCN IVPrefectural Wildlife Protection Area
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 151 distinct species · 5 964 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 和賀川 : 14 espèces reliées par 23 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 8 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°
8,4°C
Annual rain
1 548mm
Moisture idx (CMI)
0,46
Runoff
1 056mm/an
PET
834mm
AET
816mm
Mean slope
13,0°
Water table
406cm
Forest
76%
Crops
8%
Urban
3%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)