HydroBASINS lev08 watershed · #4080042550
Bassin de 由良川
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 15 administrative regions : Asago, Ayabe, Fukuchiyama, Kyoto, Kyōtamba +10
Sub-basin area
1 832,8km²
Upstream area
1 833,2km²
Discharge
59,58m³/s
Mean elev.
289m
Administrative coverage
15 dept-equivalent regions (GADM L2)
- FukuchiyamaKyoto · Japan553.0 km²30.2% of basin
- 345.0 km²18.8% of basin
- 317.7 km²17.3% of basin
- 295.8 km²16.1% of basin
- 154.6 km²8.4% of basin
- 93.6 km²5.1% of basin
- 35.2 km²1.9% of basin
- 15.4 km²0.8% of basin
17 intersecting protected areas
Kyoto Tamba Kogen
IUCN VQuasi National Park
385.77 km² overlap
Quasi National Park
54.17 km² overlap
Taki renzan
IUCN VPrefectural Natural Park
30.11 km² overlap
Kyotanbacho tanba
IUCN IVPrefectural Wildlife Protection Area
13.80 km² overlap
Ashiu
IUCN IVPrefectural Wildlife Protection Area
13.76 km² overlap
Terayama
IUCN IVPrefectural Wildlife Protection Area
2.77 km² overlap
Mikata
IUCN IVPrefectural Wildlife Protection Area
1.50 km² overlap
Kutsuki-katsura gawa
IUCN VPrefectural Natural Park
0.52 km² overlap
Kyotanbacho kototaki
IUCN IVPrefectural Wildlife Protection Area
0.49 km² overlap
8 more protected areassorted by overlap area
Izushi itoi
IUCN VPrefectural Natural Park
0.34 km² overlap
Ineyama
IUCN IVPrefectural Wildlife Protection Area
0.32 km² overlap
Iwatoyama
IUCN VHistoric Natural Environment Conservation Area(Kyoto)
0.14 km² overlap
Monobe
IUCN IVPrefectural Wildlife Protection Area
0.11 km² overlap
Honguyama
IUCN IVPrefectural Wildlife Protection Area
0.04 km² overlap
Yoto
IUCN VPrefectural Nature Conservation Area
0.04 km² overlap
Hyouzu jinja
IUCN VEnvironmental Green Space Conservation Area(Hyogo)
0.03 km² overlap
Yamagajoshi
IUCN IVPrefectural Wildlife Protection Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 631 distinct species · 12 319 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 由良川 : 32 espèces reliées par 54 interactions GloBI sur 3 types (connectance 7.3%, 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°
13,4°C
Annual rain
1 809mm
Moisture idx (CMI)
0,45
Runoff
1 032mm/an
PET
991mm
AET
985mm
Mean slope
14,1°
Water table
475cm
Forest
89%
Crops
4%
Urban
4%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)