HydroBASINS lev08 watershed · #4080449920
Bassin de 阿仁川
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 : Akita, Gojōme, Kamikoani, Kitaakita, Mitane +3
Sub-basin area
1 069,9km²
Upstream area
1 069,9km²
Discharge
37,9m³/s
Mean elev.
416m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- 802.4 km²74.9% of basin
- 246.1 km²23.0% of basin
- 8.3 km²0.8% of basin
- 4.0 km²0.4% of basin
- 3.1 km²0.3% of basin
- 3.1 km²0.3% of basin
- 2.9 km²0.3% of basin
- 1.2 km²0.1% of basin
30 intersecting protected areas
Moriyoshi zan
IUCN VPrefectural Natural Park
150.76 km² overlap
Moriyoshiyama
IUCN IVNational Wildlife Protection Area
63.32 km² overlap
Taiheizan Shuhen
IUCN IVBiocenosis Protected Forest
43.53 km² overlap
Hachimantai Taiheizan
IUCN VGreen Corridor
43.43 km² overlap
Taihe zan
IUCN VPrefectural Natural Park
37.84 km² overlap
Arase
IUCN IVPrefectural Wildlife Protection Area
12.02 km² overlap
Ousammyaku Hokuseibu
IUCN IVBiocenosis Protected Forest
8.86 km² overlap
Haginari
IUCN IVPrefectural Wildlife Protection Area
6.61 km² overlap
Tsuyukuma
IUCN IVPrefectural Wildlife Protection Area
6.20 km² overlap
21 more protected areassorted by overlap area
Kuranoyama
IUCN IVPrefectural Wildlife Protection Area
4.30 km² overlap
Busshazawa
IUCN IVPrefectural Wildlife Protection Area
4.22 km² overlap
Moriyoshizan Xxx
IUCN IVRare Population Protected Forest
3.29 km² overlap
Katsurase
IUCN IVPrefectural Wildlife Protection Area
2.82 km² overlap
Urashinai
IUCN IVPrefectural Wildlife Protection Area
2.31 km² overlap
Hokuonomori
IUCN IVPrefectural Wildlife Protection Area
2.06 km² overlap
Bandorimori・Daibutsudake
IUCN IVBiocenosis Protected Forest
1.18 km² overlap
Tsuyukuma sankyo
IUCN VPrefectural Nature Conservation Area
0.74 km² overlap
Towada hachimantai
IUCN IINational Park
0.51 km² overlap
Hakobuchitai
IUCN IVPrefectural Wildlife Protection Area
0.48 km² overlap
Misaka
IUCN IVPrefectural Wildlife Protection Area
0.35 km² overlap
Sumomodai
IUCN IVPrefectural Wildlife Protection Area
0.31 km² overlap
Nihonmatsu
IUCN IVPrefectural Wildlife Protection Area
0.24 km² overlap
Matsumori
IUCN IVPrefectural Wildlife Protection Area
0.22 km² overlap
Komata fuketsu
IUCN VPrefectural Nature Conservation Area
0.22 km² overlap
Nibunamizusawa Sugi
IUCN IVRare Population Protected Forest
0.17 km² overlap
Nibetsu
IUCN IVPrefectural Wildlife Protection Area
0.16 km² overlap
Koya Udaikanba Idenshigen
IUCN IVRare Population Protected Forest
0.15 km² overlap
Bandori mori
IUCN IVPrefectural Wildlife Protection Area
0.01 km² overlap
Budomori
IUCN IVBiocenosis Protected Forest
0.01 km² overlap
Bandori mori
IUCN VPrefectural Nature Conservation Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 464 distinct species · 5 243 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 阿仁川 : 28 espèces reliées par 35 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 6 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°
8,7°C
Annual rain
1 614mm
Moisture idx (CMI)
0,50
Runoff
1 112mm/an
PET
812mm
AET
793mm
Mean slope
13,7°
Water table
422cm
Forest
95%
Crops
2%
Urban
0%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)