Ontologia

HydroBASINS lev08 watershed · #4080612170

Bassin de 天竜川

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 6 administrative regions : Anan, Hamamatsu, Tenryū, Toyone, Tōei +1

26% lakePfafstetter: 41301765

Sub-basin area

183,3km²

Upstream area

3 796,5km²

Discharge

124,1m³/s

Mean elev.

707m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 水窪川340 km²

▲ Receives from 2 basins

6 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Tenryu-Okumikawa

    IUCN V

    Quasi National Park

    57.77 km² overlap

  • Onuma

    IUCN V

    Prefectural Nature Conservation Area

    0.16 km² overlap

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

Species present

1 202 distinct species · 6 156 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 156 obs · 7 cellules
Obs. / cellule
≥ 2 759
2 759–2 758
1 098–2 758
206–1 097
< 206

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 2 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

Indicateurs du tissu écologique

Tissu écologique de Bassin de 天竜川 : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
Patrimoniales
0
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°

11,7°C

Annual rain

2 103mm

Moisture idx (CMI)

0,53

Runoff

1 122mm/an

PET

983mm

AET

983mm

Mean slope

22,0°

Water table

683cm

Forest

99%

Crops

0%

Urban

0%

Protected

31%

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