HydroBASINS lev08 watershed · #4080042440
Bassin de 矢田川
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 7 administrative regions : Iwami, Kami, Shin'onsen, Tottori, Toyooka +2
Sub-basin area
909,5km²
Upstream area
909,5km²
Discharge
8,77m³/s
Mean elev.
309m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- 357.8 km²39.3% of basin
- 261.7 km²28.8% of basin
- 128.2 km²14.1% of basin
- 93.4 km²10.3% of basin
- 39.8 km²4.4% of basin
- 2.0 km²0.2% of basin
- 0.1 km²0.0% of basin
30 intersecting protected areas
Tajima sangaku
IUCN VPrefectural Natural Park
223.10 km² overlap
Quasi National Park
108.40 km² overlap
Saninkaigan
IUCN VNational Park
82.36 km² overlap
Common fishery right area
20.18 km² overlap
Oginosen
IUCN IVPrefectural Wildlife Protection Area
17.77 km² overlap
Iwami
IUCN IVPrefectural Wildlife Protection Area
13.84 km² overlap
Green Corridor
11.34 km² overlap
Tajimakaigan chubu
IUCN IVPrefectural Wildlife Protection Area
7.00 km² overlap
Tajimakaigan tobu
IUCN IVPrefectural Wildlife Protection Area
6.73 km² overlap
21 more protected areassorted by overlap area
Common fishery right area
5.97 km² overlap
Oginosen
IUCN IVPrefectural Wildlife Protection Area
5.39 km² overlap
Hachikita kogen
IUCN IVPrefectural Wildlife Protection Area
5.21 km² overlap
Tajimakaigan seibu
IUCN IVPrefectural Wildlife Protection Area
3.85 km² overlap
Uwano kogen
IUCN IVPrefectural Wildlife Protection Area
3.04 km² overlap
Hiyoriyama
IUCN IVPrefectural Wildlife Protection Area
1.91 km² overlap
Kannonsan
IUCN IVPrefectural Wildlife Protection Area
1.26 km² overlap
Sawagawa
IUCN IVPrefectural Wildlife Protection Area
0.94 km² overlap
Kinosaki
IUCN IVPrefectural Wildlife Protection Area
0.42 km² overlap
Kijiyayashiki Buna
IUCN IVRare Population Protected Forest
0.24 km² overlap
Hachi kogen
IUCN IVPrefectural Wildlife Protection Area
0.24 km² overlap
Karakawa
IUCN VPrefectural Nature Conservation Area
0.17 km² overlap
Fukuoka hachiman
IUCN IVPrefectural Wildlife Protection Area
0.14 km² overlap
Yoka myokensan
IUCN IVPrefectural Wildlife Protection Area
0.10 km² overlap
Oginosen Buna
IUCN IVRare Population Protected Forest
0.10 km² overlap
Maruyamagawa karyuiki
IUCN IVNational Wildlife Protection Area
0.07 km² overlap
Wetland of International Importance (Ramsar Site)
0.07 km² overlap
Mizuyama Buna・Natsutsubaki
IUCN IVRare Population Protected Forest
0.05 km² overlap
Fukuoka hachiman jinja
IUCN VEnvironmental Green Space Conservation Area(Hyogo)
0.04 km² overlap
Makidani
IUCN VPrefectural Nature Conservation Area
0.02 km² overlap
Hyonosen
IUCN IVPrefectural Wildlife Protection Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 234 distinct species · 15 431 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 矢田川 : 12 espèces reliées par 16 interactions GloBI sur 3 types (connectance 11.8%, filtre Serrano α=0.2). 5 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°
12,8°C
Annual rain
1 978mm
Moisture idx (CMI)
0,49
Runoff
1 223mm/an
PET
1 000mm
AET
984mm
Mean slope
15,2°
Water table
467cm
Forest
72%
Crops
11%
Urban
4%
Protected
46%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)