HydroBASINS lev08 watershed · #4080540230
Bassin de 釈迦堂川
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 8 administrative regions : Izumizaki, Kagamiishi, Kōriyama, Nishigou, Shirakawa +3
Sub-basin area
320,4km²
Upstream area
320,4km²
Discharge
8,04m³/s
Mean elev.
414m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- 125.0 km²39.0% of basin
- 79.6 km²24.8% of basin
- 78.3 km²24.4% of basin
- 19.6 km²6.1% of basin
- 7.8 km²2.4% of basin
- 3.8 km²1.2% of basin
- 3.6 km²1.1% of basin
- 2.9 km²0.9% of basin
8 intersecting protected areas
Green Corridor
54.87 km² overlap
Sukagawa
IUCN IVPrefectural Wildlife Protection Area
6.97 km² overlap
Naganuma
IUCN IVPrefectural Wildlife Protection Area
3.04 km² overlap
Okawa hatori
IUCN VPrefectural Natural Park
1.60 km² overlap
Rare Population Protected Forest
1.25 km² overlap
Hatori
IUCN IVPrefectural Wildlife Protection Area
1.01 km² overlap
Taki Sawara
IUCN IVRare Population Protected Forest
0.08 km² overlap
Gohon matsu
IUCN VPrefectural Nature Conservation Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
123 distinct species · 227 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 釈迦堂川 : 11 espèces reliées par 15 interactions GloBI sur 3 types (connectance 11.0%, 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°
10,9°C
Annual rain
1 345mm
Moisture idx (CMI)
0,30
Runoff
792mm/an
PET
941mm
AET
911mm
Mean slope
7,2°
Water table
239cm
Forest
51%
Crops
38%
Urban
11%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)