HydroBASINS lev08 watershed · #4080039720
Bassin de 塩塚川
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 : Chikugo, Miyama, Saga, Yanagawa, Ōkawa +1
Sub-basin area
53,7km²
Upstream area
53,9km²
Discharge
2,13m³/s
Mean elev.
1m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 45.6 km²85.0% of basin
- 2.0 km²3.7% of basin
- ŌkawaFukuoka · Japan1.8 km²3.4% of basin
- 1.0 km²1.9% of basin
- 0.9 km²1.6% of basin
- 0.0 km²0.0% of basin
1 intersecting protected areas
Common fishery right area
2.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
123 distinct species · 321 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 塩塚川 : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 4 types (connectance 6.5%, 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°
16,4°C
Annual rain
1 801mm
Moisture idx (CMI)
0,38
Runoff
1 254mm/an
PET
1 122mm
AET
1 118mm
Mean slope
0,1°
Water table
2cm
Forest
0%
Crops
3%
Urban
88%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)