HydroBASINS lev08 watershed · #4080040250
Bassin de 大野川
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 : Aso, Bungo-ōno, Kokonoe, Minamioguni, Saiki +6
Sub-basin area
1 444,2km²
Upstream area
1 444,2km²
Discharge
68,45m³/s
Mean elev.
450m
Administrative coverage
11 dept-equivalent regions (GADM L2)
- 594.2 km²41.2% of basin
- 346.5 km²24.0% of basin
- 148.7 km²10.3% of basin
- 109.1 km²7.6% of basin
- 86.1 km²6.0% of basin
- 64.2 km²4.4% of basin
- 63.8 km²4.4% of basin
- 21.6 km²1.5% of basin
3 moreFull L2 list
- Minamioguni5.8 km² · 0.4%
- Saiki3.3 km² · 0.2%
- Kokonoe0.1 km² · 0.0%
30 intersecting protected areas
Sobo katamuki (oita)
IUCN VPrefectural Natural Park
107.11 km² overlap
Sobo-Katamuki
IUCN VQuasi National Park
80.84 km² overlap
Aso kuju
IUCN VNational Park
66.98 km² overlap
Sobo-katamuki-okue
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
62.01 km² overlap
Sobokatamukisankei
IUCN IVPrefectural Wildlife Protection Area
37.33 km² overlap
Jinkakuji Serikawa
IUCN VPrefectural Natural Park
34.48 km² overlap
Forest Ecosystem Reserve
26.82 km² overlap
Sobo katamuki (miyazaki)
IUCN VPrefectural Natural Park
19.35 km² overlap
Sobokatamukiyama
IUCN IVPrefectural Wildlife Protection Area
6.86 km² overlap
21 more protected areassorted by overlap area
Okashiwa
IUCN IVPrefectural Wildlife Protection Area
5.64 km² overlap
Yamaga
IUCN IVPrefectural Wildlife Protection Area
5.03 km² overlap
Kujutaisen
IUCN IVPrefectural Wildlife Protection Area
3.92 km² overlap
Tamarai
IUCN IVPrefectural Wildlife Protection Area
3.26 km² overlap
Okajo
IUCN IVPrefectural Wildlife Protection Area
3.04 km² overlap
Shirani
IUCN IVPrefectural Wildlife Protection Area
3.02 km² overlap
Arahira
IUCN IVPrefectural Wildlife Protection Area
2.90 km² overlap
Ogitake
IUCN IVPrefectural Wildlife Protection Area
2.22 km² overlap
Hakurokusan
IUCN IVPrefectural Wildlife Protection Area
1.17 km² overlap
Manganji
IUCN IVPrefectural Wildlife Protection Area
0.93 km² overlap
Shochino
IUCN IVPrefectural Wildlife Protection Area
0.76 km² overlap
Yujaku
IUCN IVPrefectural Wildlife Protection Area
0.69 km² overlap
Shidawara dam
IUCN IVPrefectural Wildlife Protection Area
0.21 km² overlap
Kurokui
IUCN IVPrefectural Wildlife Protection Area
0.21 km² overlap
Oishikashiyama Akagashito
IUCN IVRare Population Protected Forest
0.19 km² overlap
Seishonenno mori
IUCN IVPrefectural Wildlife Protection Area
0.16 km² overlap
Rare Population Protected Forest
0.06 km² overlap
Oita Canon Inc. Oita Office "Canon Forest"
IUCN Not ApplicableOECM
0.06 km² overlap
Prefectural Nature Conservation Area
0.04 km² overlap
Makinoto
IUCN IVPrefectural Wildlife Protection Area
0.04 km² overlap
U-ta no Satoyama(downtown Biotope in Oitacity)
IUCN Not ApplicableOECM
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
957 distinct species · 5 828 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 大野川 : 36 espèces reliées par 39 interactions GloBI sur 5 types (connectance 5.0%, filtre Serrano α=0.2). 4 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°
13,5°C
Annual rain
2 266mm
Moisture idx (CMI)
0,54
Runoff
1 481mm/an
PET
996mm
AET
996mm
Mean slope
9,5°
Water table
275cm
Forest
86%
Crops
9%
Urban
6%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)