Ontologia

HydroBASINS lev08 watershed · #4080037340

Bassin de 豊平川

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 14 administrative regions : Akaigawa, Chitose, Date, Ebetsu, Eniwa +9

5% lakePfafstetter: 41200121

Sub-basin area

1 648,6km²

Upstream area

14 409,5km²

Discharge

490,22m³/s

Mean elev.

324m

Administrative coverage

Hydrographic chain

▼ Drains into

Outlet (drains to ocean / endorheic)

▲ Receives from 2 basins

14 dept-equivalent regions (GADM L2)

6 more

30 intersecting protected areas

  • Shikotsu toya

    IUCN II

    National Park

    248.19 km² overlap

  • Shikotsu and Muine

    IUCN V

    Green Corridor

    34.76 km² overlap

  • Yoichidake

    IUCN V

    Natural Landscape Protection Area(Hokkaido)

    28.87 km² overlap

  • Teineyama minami

    IUCN V

    Natural Landscape Protection Area(Hokkaido)

    27.84 km² overlap

  • Hitsujigaoka shirohatayama

    IUCN IV

    Prefectural Wildlife Protection Area

    23.38 km² overlap

  • Teine

    IUCN IV

    Prefectural Wildlife Protection Area

    21.74 km² overlap

  • Jozankei

    IUCN IV

    Prefectural Wildlife Protection Area

    15.31 km² overlap

  • Shirahatayama

    IUCN V

    Environmental Green Space Protection Area(Hokkaido)

    12.21 km² overlap

  • Izaridake Shuhen

    IUCN Ib

    Forest Ecosystem Reserve

    9.40 km² overlap

21 more protected areas

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

Species present

3 510 distinct species · 46 583 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

46 583 obs · 50 cellules
Obs. / cellule
≥ 9 482
2 867–9 481
597–2 866
198–596
< 198

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

Ecological tissue

Sample of 42 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 豊平川 : 34 espèces reliées par 50 interactions GloBI sur 5 types (connectance 5.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
50
Connectance
0.058
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°

6,3°C

Annual rain

1 277mm

Moisture idx (CMI)

0,42

Runoff

992mm/an

PET

726mm

AET

650mm

Mean slope

8,1°

Water table

221cm

Forest

62%

Crops

7%

Urban

28%

Protected

19%

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