HydroBASINS lev08 watershed · #4080044820
Bassin de 中川
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 4 administrative regions : Edogawa, Katsushika, Kōtō, Sumida
Sub-basin area
5,5km²
Upstream area
3 456km²
Discharge
67,37m³/s
Mean elev.
4m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de 荒川795 km²
- Bassin de 大落古利根川635 km²
4 dept-equivalent regions (GADM L2)
- 1.5 km²26.7% of basin
- 1.4 km²26.2% of basin
- 1.4 km²26.1% of basin
- 0.6 km²11.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
560 distinct species · 4 157 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 中川 : 35 espèces reliées par 66 interactions GloBI sur 5 types (connectance 7.0%, filtre Serrano α=0.2). 9 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°
15,6°C
Annual rain
1 422mm
Moisture idx (CMI)
0,31
Runoff
703mm/an
PET
982mm
AET
970mm
Mean slope
0,5°
Water table
5cm
Forest
0%
Crops
0%
Urban
100%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)