HydroBASINS lev08 watershed · #4080040500
Bassin de 安楽川
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 : Kushima, Mimata, Miyakonojō, Nangō, Nichinan +3
Sub-basin area
702km²
Upstream area
702km²
Discharge
14,38m³/s
Mean elev.
162m
Administrative coverage
8 dept-equivalent regions (GADM L2)
- 289.2 km²41.2% of basin
- 200.9 km²28.6% of basin
- 65.9 km²9.4% of basin
- 64.8 km²9.2% of basin
- MiyakonojōMiyazaki · Japan34.4 km²4.9% of basin
- 16.2 km²2.3% of basin
- 0.7 km²0.1% of basin
- 0.1 km²0.0% of basin
19 intersecting protected areas
Nichinankaigan
IUCN VQuasi National Park
50.39 km² overlap
Common fishery right area
25.68 km² overlap
Jindake
IUCN IVPrefectural Wildlife Protection Area
7.34 km² overlap
Okamigahana
IUCN IVPrefectural Wildlife Protection Area
6.60 km² overlap
Aburatsu
IUCN IVPrefectural Wildlife Protection Area
5.67 km² overlap
Toimisaki
IUCN IVPrefectural Wildlife Protection Area
5.39 km² overlap
Minaminogo hanafusa
IUCN IVPrefectural Wildlife Protection Area
4.39 km² overlap
Nishikata
IUCN IVPrefectural Wildlife Protection Area
3.52 km² overlap
Ichirizaki
IUCN IVPrefectural Wildlife Protection Area
3.35 km² overlap
10 more protected areassorted by overlap area
Common fishery right area
2.52 km² overlap
Shiroyama
IUCN IVPrefectural Wildlife Protection Area
1.49 km² overlap
Takenoyama
IUCN IVPrefectural Wildlife Protection Area
1.35 km² overlap
Honjo
IUCN IVPrefectural Wildlife Protection Area
1.08 km² overlap
Tsukishima
IUCN IVPrefectural Wildlife Protection Area
0.83 km² overlap
Misakiuma oyobi sono hanshokuchi
IUCN IIINational Natural Monument
0.73 km² overlap
Rare Population Protected Forest
0.05 km² overlap
Takisan Sudajiito
IUCN IVRare Population Protected Forest
0.05 km² overlap
Yowara chugakko
IUCN IVPrefectural Wildlife Protection Area
0.05 km² overlap
Futamata
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 105 distinct species · 3 613 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 6 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 安楽川 : 5 espèces reliées par 3 interactions GloBI sur 2 types (connectance 20.0%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
16,8°C
Annual rain
2 613mm
Moisture idx (CMI)
0,57
Runoff
1 613mm/an
PET
1 106mm
AET
1 106mm
Mean slope
10,2°
Water table
315cm
Forest
83%
Crops
8%
Urban
5%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)