HydroBASINS lev08 watershed · #4080041230
Bassin de 新荘川
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 11 administrative regions : Haruno, Kuroshio, Nakatosa, Niyodogawa, Ochi +6
Sub-basin area
615,5km²
Upstream area
615,5km²
Discharge
5,87m³/s
Mean elev.
186m
Administrative coverage
11 dept-equivalent regions (GADM L2)
- 186.7 km²30.3% of basin
- 138.0 km²22.4% of basin
- 100.3 km²16.3% of basin
- 68.5 km²11.1% of basin
- 42.6 km²6.9% of basin
- 13.3 km²2.2% of basin
- 10.7 km²1.7% of basin
- 4.4 km²0.7% of basin
3 moreFull L2 list
- Ochi3.3 km² · 0.5%
- Niyodogawa0.1 km² · 0.0%
- Haruno0.0 km² · 0.0%
16 intersecting protected areas
Common fishery right area
49.96 km² overlap
Yokonami
IUCN VPrefectural Natural Park
23.36 km² overlap
Okitsu
IUCN VPrefectural Natural Park
17.55 km² overlap
Suzaki wan
IUCN VPrefectural Natural Park
16.92 km² overlap
Yokonami
IUCN IVPrefectural Wildlife Protection Area
12.99 km² overlap
Susakiwan
IUCN IVPrefectural Wildlife Protection Area
12.21 km² overlap
Saga
IUCN IVPrefectural Wildlife Protection Area
3.64 km² overlap
Usa
IUCN IVPrefectural Wildlife Protection Area
3.32 km² overlap
Shimonakayama
IUCN IVPrefectural Wildlife Protection Area
2.40 km² overlap
7 more protected areassorted by overlap area
Yokonamiko
IUCN IVPrefectural Wildlife Protection Area
2.24 km² overlap
Irino
IUCN VPrefectural Natural Park
1.80 km² overlap
Shikoku Karst (kochi)
IUCN VPrefectural Natural Park
1.60 km² overlap
Misakiyama
IUCN IVPrefectural Wildlife Protection Area
1.23 km² overlap
Irinohama
IUCN IVPrefectural Wildlife Protection Area
0.85 km² overlap
Kashima
IUCN VPrefectural Nature Conservation Area
0.04 km² overlap
Sakawacho nishigumi
IUCN IVPrefectural Wildlife Protection Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 262 distinct species · 13 418 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 新荘川 : 8 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 13 interactions GloBI sur 2 types (connectance 16.7%, filtre Serrano α=0.2). 5 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°
16,0°C
Annual rain
2 265mm
Moisture idx (CMI)
0,56
Runoff
1 300mm/an
PET
1 003mm
AET
999mm
Mean slope
14,6°
Water table
412cm
Forest
81%
Crops
10%
Urban
5%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)