HydroBASINS lev08 watershed · #4080476540
Bassin de 北上川
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 8 administrative regions : Hanamaki, Iwazumi, Kawai, Morioka, Shiwa +3
Sub-basin area
1 213,8km²
Upstream area
3 199,3km²
Discharge
88,24m³/s
Mean elev.
406m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 丹藤川1201 km²
- Bassin de 雫石川784 km²
8 dept-equivalent regions (GADM L2)
- 463.0 km²38.1% of basin
- 429.0 km²35.3% of basin
- 233.2 km²19.2% of basin
- 63.5 km²5.2% of basin
- ShizukuishiIwate · Japan10.8 km²0.9% of basin
- 9.3 km²0.8% of basin
- 5.5 km²0.5% of basin
- 0.7 km²0.1% of basin
27 intersecting protected areas
Hayachinesan
IUCN IVPrefectural Wildlife Protection Area
31.77 km² overlap
Hayachinesan Shuhen
IUCN IbForest Ecosystem Reserve
26.48 km² overlap
Moriokashi kokaizawa
IUCN IVPrefectural Wildlife Protection Area
20.08 km² overlap
Moriokashi iwayama
IUCN IVPrefectural Wildlife Protection Area
17.91 km² overlap
Hayachine
IUCN IIQuasi National Park
17.50 km² overlap
Sotoyama hayasaka kogen
IUCN VPrefectural Natural Park
15.68 km² overlap
Moriokashi takamori
IUCN IVPrefectural Wildlife Protection Area
7.47 km² overlap
Shiwacho niiyama
IUCN IVPrefectural Wildlife Protection Area
2.38 km² overlap
Kuzakai kogen
IUCN VPrefectural Nature Conservation Area
2.30 km² overlap
18 more protected areassorted by overlap area
Sannokai dam
IUCN IVPrefectural Wildlife Protection Area
2.11 km² overlap
Kitakami Highlands
IUCN VGreen Corridor
1.48 km² overlap
Hayachine
IUCN IbNature Conservation Area
1.37 km² overlap
Prefectural Wildlife Protection Area
1.30 km² overlap
Hanamaki Onsenkyo
IUCN VPrefectural Natural Park
1.24 km² overlap
Koshiouzan
IUCN VEnvironmental Green Space Conservation Area(Iwate)
0.86 km² overlap
Shiwacho shiroyama
IUCN IVPrefectural Wildlife Protection Area
0.51 km² overlap
Prefectural Wildlife Protection Area
0.50 km² overlap
Miyakoshi kuzakaikogen
IUCN IVPrefectural Wildlife Protection Area
0.38 km² overlap
Gandoko
IUCN IVPrefectural Wildlife Protection Area
0.38 km² overlap
Shizukuishigawa tobu
IUCN IVPrefectural Wildlife Protection Area
0.27 km² overlap
Nozawahitaiyama Xxx
IUCN IVRare Population Protected Forest
0.25 km² overlap
Moriokashi yuzawa
IUCN IVPrefectural Wildlife Protection Area
0.25 km² overlap
Hanamaki onsen
IUCN IVPrefectural Wildlife Protection Area
0.18 km² overlap
Iwate koen
IUCN IVPrefectural Wildlife Protection Area
0.17 km² overlap
Iwaizumicho hittori
IUCN IVPrefectural Wildlife Protection Area
0.15 km² overlap
Hittori shitsugen
IUCN VPrefectural Nature Conservation Area
0.15 km² overlap
Sannoukai Nezuko Idenshigen
IUCN IVRare Population Protected Forest
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 630 distinct species · 9 913 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 北上川 : 27 espèces reliées par 61 interactions GloBI sur 4 types (connectance 9.7%, filtre Serrano α=0.2). 9 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°
8,7°C
Annual rain
1 413mm
Moisture idx (CMI)
0,40
Runoff
881mm/an
PET
846mm
AET
823mm
Mean slope
10,1°
Water table
331cm
Forest
54%
Crops
13%
Urban
10%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)