HydroBASINS lev08 watershed · #4080574090
Bassin de 鬼怒川
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 12 administrative regions : Chikusei, Kaminokawa, Mōka, Nikkō, Ninomiya +7
Sub-basin area
300,9km²
Upstream area
1 364,6km²
Discharge
29,31m³/s
Mean elev.
164m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 油川264 km²
- Bassin de 小百川192 km²
12 dept-equivalent regions (GADM L2)
- UtsunomiyaTochigi · Japan124.4 km²41.3% of basin
- 43.3 km²14.4% of basin
- 40.3 km²13.4% of basin
- KaminokawaTochigi · Japan32.0 km²10.6% of basin
- 12.8 km²4.2% of basin
- OyamaTochigi · Japan10.1 km²3.3% of basin
- ShimotsukeTochigi · Japan8.7 km²2.9% of basin
- 7.9 km²2.6% of basin
4 moreFull L2 list
- Ninomiya7.9 km² · 2.6%
- Takanezawa6.2 km² · 2.1%
- Yūki4.2 km² · 1.4%
- Sakura3.2 km² · 1.1%
16 intersecting protected areas
Osawa
IUCN IVPrefectural Wildlife Protection Area
13.61 km² overlap
Kinu shizenkoen
IUCN IVPrefectural Wildlife Protection Area
2.60 km² overlap
Hagurosan
IUCN IVPrefectural Wildlife Protection Area
2.14 km² overlap
Ishiikinugawa
IUCN IVPrefectural Wildlife Protection Area
1.83 km² overlap
Shioya
IUCN IVPrefectural Wildlife Protection Area
1.19 km² overlap
Isagahara
IUCN IVPrefectural Wildlife Protection Area
1.12 km² overlap
Kinugawa tyuryuiki
IUCN VPrefectural Nature Conservation Area
0.55 km² overlap
Sakaue shogakko
IUCN IVPrefectural Wildlife Protection Area
0.25 km² overlap
Hagurosan
IUCN VGreen Space Environment Conservation Area(Tochigi)
0.22 km² overlap
7 more protected areassorted by overlap area
Sanuki kannon
IUCN VPrefectural Nature Conservation Area
0.21 km² overlap
Sanuki kannon
IUCN IVPrefectural Wildlife Protection Area
0.19 km² overlap
Katsuyama joshi koen
IUCN IVPrefectural Wildlife Protection Area
0.15 km² overlap
Haratsuki Hinoki
IUCN IVRare Population Protected Forest
0.08 km² overlap
Mizuhono chugakko
IUCN IVPrefectural Wildlife Protection Area
0.08 km² overlap
Shirasawa shogakko
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
Sakuraminami shogakko
IUCN IVPrefectural Wildlife Protection Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 032 distinct species · 4 777 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 鬼怒川 : 26 espèces reliées par 83 interactions GloBI sur 6 types (connectance 11.8%, filtre Serrano α=0.2). 12 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°
13,1°C
Annual rain
1 449mm
Moisture idx (CMI)
0,29
Runoff
613mm/an
PET
1 020mm
AET
1 002mm
Mean slope
2,0°
Water table
56cm
Forest
9%
Crops
27%
Urban
63%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)