HydroBASINS lev08 watershed · #4080537340
Bassin de 大滝根川
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 : Hirata, Kōriyama, Miharu, Ono, Sukagawa +1
Sub-basin area
386,8km²
Upstream area
386,9km²
Discharge
8,8m³/s
Mean elev.
472m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 199.6 km²51.6% of basin
- 147.2 km²38.0% of basin
- 27.9 km²7.2% of basin
- 10.9 km²2.8% of basin
- 1.3 km²0.3% of basin
- 0.1 km²0.0% of basin
12 intersecting protected areas
Abukuma kogen chubu
IUCN VPrefectural Natural Park
11.84 km² overlap
Kooriyama
IUCN IVPrefectural Wildlife Protection Area
7.67 km² overlap
Miharu dam
IUCN IVPrefectural Wildlife Protection Area
7.11 km² overlap
Katasoneyama
IUCN IVPrefectural Wildlife Protection Area
6.78 km² overlap
Utsumine yama
IUCN VPrefectural Nature Conservation Area
2.45 km² overlap
Ohirayama
IUCN IVPrefectural Wildlife Protection Area
2.31 km² overlap
Tateyama(tamura)
IUCN IVPrefectural Wildlife Protection Area
1.62 km² overlap
Denjo
IUCN IVPrefectural Wildlife Protection Area
0.91 km² overlap
Yomogidayama
IUCN IVPrefectural Wildlife Protection Area
0.77 km² overlap
3 more protected areassorted by overlap area
Hirata
IUCN IVPrefectural Wildlife Protection Area
0.03 km² overlap
Douyama ouji
IUCN VGreen Space Environment Conservation Area(Fukushima)
0.01 km² overlap
Abukumado
IUCN IVPrefectural Wildlife Protection Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
422 distinct species · 5 661 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 大滝根川 : 33 espèces reliées par 73 interactions GloBI sur 3 types (connectance 7.7%, 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°
10,5°C
Annual rain
1 363mm
Moisture idx (CMI)
0,34
Runoff
726mm/an
PET
899mm
AET
886mm
Mean slope
6,9°
Water table
266cm
Forest
50%
Crops
15%
Urban
8%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)