HydroBASINS lev08 watershed · #4080045560
Bassin de 阪内川
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 1 administrative regions : Matsusaka
Sub-basin area
145,6km²
Upstream area
145,7km²
Discharge
5,64m³/s
Mean elev.
101m
Administrative coverage
7 intersecting protected areas
Akame Ichishikyo
IUCN VPrefectural Natural Park
10.95 km² overlap
Matsusakashi chubudai
IUCN IVPrefectural Wildlife Protection Area
7.02 km² overlap
Common fishery right area
2.23 km² overlap
Matsusakashi shinrin koen
IUCN IVPrefectural Wildlife Protection Area
2.16 km² overlap
Prefectural Wildlife Protection Area
0.22 km² overlap
Kahada kyo
IUCN VPrefectural Natural Park
0.09 km² overlap
Matsusakashi izumino mori
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
666 distinct species · 8 185 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 阪内川 : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 2 types (connectance 11.0%, filtre Serrano α=0.2). 7 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°
15,2°C
Annual rain
2 088mm
Moisture idx (CMI)
0,51
Runoff
1 288mm/an
PET
1 012mm
AET
1 012mm
Mean slope
4,8°
Water table
150cm
Forest
32%
Crops
8%
Urban
62%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)