HydroBASINS lev08 watershed · #4080042560
Bassin de 南川
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 19 administrative regions : Ayabe, Echizen, Echizen City, Fukui, Kyoto +14
Sub-basin area
1 711,6km²
Upstream area
1 711,6km²
Discharge
17,36m³/s
Mean elev.
229m
Administrative coverage
19 dept-equivalent regions (GADM L2)
- 243.1 km²14.2% of basin
- 242.9 km²14.2% of basin
- 241.3 km²14.1% of basin
- ŌiFukui · Japan194.1 km²11.3% of basin
- WakasaFukui · Japan179.3 km²10.5% of basin
- MihamaFukui · Japan156.9 km²9.2% of basin
- 95.5 km²5.6% of basin
- TakahamaFukui · Japan85.4 km²5.0% of basin
11 moreFull L2 list
- Minamiechizen47.2 km² · 2.8%
- Echizen41.3 km² · 2.4%
- Takashima33.4 km² · 2.0%
- Ayabe27.2 km² · 1.6%
- Echizen City8.9 km² · 0.5%
- Sakai City5.6 km² · 0.3%
- Yogo1.6 km² · 0.1%
- Nantan1.2 km² · 0.1%
- Miyazu1.0 km² · 0.1%
- Kyoto0.2 km² · 0.0%
- Nishiazai0.0 km² · 0.0%
30 intersecting protected areas
Wakasawan
IUCN VQuasi National Park
271.81 km² overlap
Echizen-Kaga-Kaigan
IUCN VQuasi National Park
83.42 km² overlap
Common fishery right area
72.41 km² overlap
Common fishery right area
24.87 km² overlap
Daini tsuruga hanto
IUCN IVPrefectural Wildlife Protection Area
19.47 km² overlap
Tsuruga hanto
IUCN IVPrefectural Wildlife Protection Area
17.50 km² overlap
Maizuru wan
IUCN IVPrefectural Wildlife Protection Area
13.23 km² overlap
Mikata-goko
IUCN Not ReportedWetland of International Importance (Ramsar Site)
11.05 km² overlap
Mikatasuigetsuko
IUCN IVPrefectural Wildlife Protection Area
7.61 km² overlap
21 more protected areassorted by overlap area
Ikenokochi
IUCN IVPrefectural Wildlife Protection Area
6.83 km² overlap
Nosakayama
IUCN IVPrefectural Wildlife Protection Area
5.78 km² overlap
Kyoto Tamba Kogen
IUCN VQuasi National Park
4.67 km² overlap
Kochi
IUCN IVPrefectural Wildlife Protection Area
4.18 km² overlap
Dakeyama
IUCN IVPrefectural Wildlife Protection Area
3.32 km² overlap
Mikata
IUCN IVPrefectural Wildlife Protection Area
3.03 km² overlap
Sugako
IUCN IVPrefectural Wildlife Protection Area
2.94 km² overlap
Ota
IUCN IVPrefectural Wildlife Protection Area
2.76 km² overlap
Ashiu
IUCN IVPrefectural Wildlife Protection Area
2.27 km² overlap
Biwako
IUCN VQuasi National Park
2.21 km² overlap
Kanmurijima-Kutsujima
IUCN IVNational Wildlife Protection Area
1.88 km² overlap
Hyakurigadake
IUCN IVPrefectural Wildlife Protection Area
1.27 km² overlap
Ikenokochi
IUCN VPrefectural Nature Conservation Area
1.15 km² overlap
Kongouin
IUCN VHistoric Natural Environment Conservation Area(Kyoto)
1.05 km² overlap
Kutsuki-katsura gawa
IUCN VPrefectural Natural Park
1.04 km² overlap
Nakaikemi-shicchi
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.87 km² overlap
Rare Population Protected Forest
0.54 km² overlap
Keshima
IUCN IVPrefectural Wildlife Protection Area
0.47 km² overlap
Imazucho
IUCN IVPrefectural Wildlife Protection Area
0.40 km² overlap
Oomizunagidori hanshokuchi
IUCN IIINational Natural Monument
0.38 km² overlap
Kutsukake
IUCN IVPrefectural Wildlife Protection Area
0.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 438 distinct species · 25 552 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 南川 : 35 espèces reliées par 44 interactions GloBI sur 4 types (connectance 5.9%, 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°
13,4°C
Annual rain
2 080mm
Moisture idx (CMI)
0,53
Runoff
1 285mm/an
PET
960mm
AET
958mm
Mean slope
14,8°
Water table
473cm
Forest
71%
Crops
8%
Urban
8%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)