HydroBASINS lev08 watershed · #4080466740
Bassin de 丹藤川
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 10 administrative regions : Hachimantai, Ichinohe, Iwate, Iwazumi, Kuzumaki +5
Sub-basin area
1 201,3km²
Upstream area
1 201,3km²
Discharge
31,64m³/s
Mean elev.
566m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
10 dept-equivalent regions (GADM L2)
- HachimantaiIwate · Japan414.8 km²34.5% of basin
- 363.4 km²30.2% of basin
- 351.4 km²29.2% of basin
- 44.3 km²3.7% of basin
- 11.3 km²0.9% of basin
- 10.7 km²0.9% of basin
- 2.7 km²0.2% of basin
- 1.9 km²0.2% of basin
2 moreFull L2 list
- Semboku1.8 km² · 0.2%
- Shizukuishi0.3 km² · 0.0%
26 intersecting protected areas
Sotoyama hayasaka kogen
IUCN VPrefectural Natural Park
65.85 km² overlap
Hachimantai
IUCN IVPrefectural Wildlife Protection Area
59.74 km² overlap
Towada hachimantai
IUCN IINational Park
56.26 km² overlap
Hachimantai
IUCN IVBiocenosis Protected Forest
39.72 km² overlap
Iwate machi
IUCN IVPrefectural Wildlife Protection Area
39.15 km² overlap
Kitakami Highlands
IUCN VGreen Corridor
28.46 km² overlap
Gandoko
IUCN IVPrefectural Wildlife Protection Area
13.59 km² overlap
Takizawa
IUCN IVPrefectural Wildlife Protection Area
12.95 km² overlap
Hachimantaishi matsukawa
IUCN IVPrefectural Wildlife Protection Area
6.29 km² overlap
17 more protected areassorted by overlap area
Hachimantaishi kanazawa
IUCN IVPrefectural Wildlife Protection Area
5.35 km² overlap
Environmental Green Space Conservation Area(Iwate)
3.97 km² overlap
Takizawashi sunakomi
IUCN IVPrefectural Wildlife Protection Area
3.89 km² overlap
Hachimantaishi maemori
IUCN IVPrefectural Wildlife Protection Area
3.15 km² overlap
Takamatsu koen
IUCN IVPrefectural Wildlife Protection Area
0.65 km² overlap
Ouu Mountain Range
IUCN VGreen Corridor
0.61 km² overlap
Forest Ecosystem Reserve
0.57 km² overlap
Hachimantai
IUCN IVPrefectural Wildlife Protection Area
0.55 km² overlap
Prefectural Wildlife Protection Area
0.32 km² overlap
SEKISUI Medical Iwate Plant
IUCN Not ApplicableOECM
0.28 km² overlap
Hachimantaishi appi kogen
IUCN IVPrefectural Wildlife Protection Area
0.25 km² overlap
Kitakamiyama Midomatsu
IUCN IVRare Population Protected Forest
0.10 km² overlap
Matsumoriyama Midomatsu
IUCN IVRare Population Protected Forest
0.07 km² overlap
Matsumori yama
IUCN VPrefectural Nature Conservation Area
0.07 km² overlap
Environmental Green Space Conservation Area(Iwate)
0.05 km² overlap
Iwaizumicho urashinai
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
Shizukuishigawa tobu
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 586 distinct species · 9 250 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 丹藤川 : 20 espèces reliées par 62 interactions GloBI sur 4 types (connectance 13.3%, filtre Serrano α=0.2). 11 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°
7,7°C
Annual rain
1 460mm
Moisture idx (CMI)
0,44
Runoff
842mm/an
PET
808mm
AET
789mm
Mean slope
8,3°
Water table
245cm
Forest
82%
Crops
5%
Urban
5%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)