HydroBASINS lev08 watershed · #4080588850

Bassin de 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 19 administrative regions : Chino, Fujimi, Hara, Ina, Kamiina +14

13% lakePfafstetter: 41301769

Sub-basin area

1 010,4km²

Upstream area

1 010,5km²

Discharge

33,84m³/s

Mean elev.

1 176m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 天竜川1756 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

19 dept-equivalent regions (GADM L2)

Chino
Nagano · Japan
250.7 km²
24.8% of basin
Tatsuno
Nagano · Japan
155.5 km²
15.4% of basin
Ina
Nagano · Japan
124.1 km²
12.3% of basin
Suwa
Nagano · Japan
107.9 km²
10.7% of basin
Okaya
Nagano · Japan
90.2 km²
8.9% of basin
Minowa
Nagano · Japan
80.8 km²
8.0% of basin
Shimosuwa
Nagano · Japan
64.9 km²
6.4% of basin
Shiojiri
Nagano · Japan
42.0 km²
4.2% of basin

11 moreFull L2 list

Hara25.6 km² · 2.5%
Fujimi24.0 km² · 2.4%
Kamiina19.6 km² · 1.9%
Minamiminowa16.3 km² · 1.6%
Tateshina3.6 km² · 0.4%
Matsumoto2.9 km² · 0.3%
Nagawa0.9 km² · 0.1%
Saku0.8 km² · 0.1%
Minamimak0.7 km² · 0.1%
Sakuho0.0 km² · 0.0%
Kiso0.0 km² · 0.0%

30 intersecting protected areas

Yatsugatake-Chushinkogen
IUCN V
Quasi National Park
120.96 km² overlap
Yokokawa
IUCN IV
Prefectural Wildlife Protection Area
34.98 km² overlap
Mt. Yatsugatake
IUCN V
Green Corridor
26.14 km² overlap
Okutateshina
IUCN IV
Prefectural Wildlife Protection Area
17.02 km² overlap
Enrei
IUCN IV
Prefectural Wildlife Protection Area
12.93 km² overlap
Minamitateshina
IUCN IV
Prefectural Wildlife Protection Area
12.20 km² overlap
Tateshina
IUCN IV
Prefectural Wildlife Protection Area
12.12 km² overlap
Kurumayama shirakabako
IUCN IV
Prefectural Wildlife Protection Area
10.74 km² overlap
Kayano kogen
IUCN IV
Prefectural Wildlife Protection Area
9.90 km² overlap

21 more protected areassorted by overlap area

Enrei oujo
IUCN V
Prefectural Natural Park
9.46 km² overlap
Chuo alps
IUCN V
Quasi National Park
5.99 km² overlap
Miyagawa-tamagawa
IUCN IV
Prefectural Wildlife Protection Area
5.77 km² overlap
Yashimagahara
IUCN IV
Prefectural Wildlife Protection Area
4.27 km² overlap
Haramura
IUCN IV
Prefectural Wildlife Protection Area
3.93 km² overlap
Fujimi
IUCN IV
Prefectural Wildlife Protection Area
2.81 km² overlap
Sawayama
IUCN IV
Prefectural Wildlife Protection Area
2.60 km² overlap
Yatsugatake
IUCN IV
Biocenosis Protected Forest
2.44 km² overlap
Kattsuru
IUCN IV
Prefectural Wildlife Protection Area
2.11 km² overlap
TOKYU RESORT TOWN TATESHINA
IUCN Not Applicable
OECM
1.83 km² overlap
Inashi ugusudo
IUCN IV
Prefectural Wildlife Protection Area
1.40 km² overlap
Odamamachi
IUCN IV
Prefectural Wildlife Protection Area
1.12 km² overlap
Imoji sawa
IUCN IV
Prefectural Wildlife Protection Area
1.09 km² overlap
Eimeijiyama
IUCN IV
Prefectural Wildlife Protection Area
0.88 km² overlap
Gombee touge
IUCN V
Local Environment Conservation Area(Nagano)
0.79 km² overlap
Inashi nishiminowa gakkorin
IUCN IV
Prefectural Wildlife Protection Area
0.63 km² overlap
Miyoshi
IUCN IV
Prefectural Wildlife Protection Area
0.52 km² overlap
Nanashimayashima Shitsugen
IUCN IV
Rare Population Protected Forest
0.45 km² overlap
Yatsugatakeshimagareyama
IUCN IV
Rare Population Protected Forest
0.43 km² overlap
Utsukushigahara
IUCN IV
Prefectural Wildlife Protection Area
0.41 km² overlap
Chuoarupusu（Komagatake）
IUCN IV
Biocenosis Protected Forest
0.36 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

4 904 distinct species · 39 659 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de 上川 : 25 espèces reliées par 60 interactions GloBI sur 5 types (connectance 7.7%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.077

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

8,2°C

Annual rain

1 557mm

Moisture idx (CMI)

0,40

Runoff

1 067mm/an

PET

908mm

AET

901mm

Mean slope

12,8°

Water table

389cm

Forest

72%

Crops

Urban

16%

Protected

24%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)