Ontologia

HydroBASINS lev08 watershed · #4080576820

Bassin de 小八賀川

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 2 administrative regions : Matsumoto, Takayama

Pfafstetter: 41301189

Sub-basin area

154,9km²

Upstream area

154,9km²

Discharge

6,29m³/s

Mean elev.

1 321m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 宮川277 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

8 intersecting protected areas

  • Chubusangaku

    IUCN II

    National Park

    40.17 km² overlap

  • Goshikigahara

    IUCN IV

    Prefectural Wildlife Protection Area

    35.05 km² overlap

  • Norikuradake

    IUCN IV

    Biocenosis Protected Forest

    27.04 km² overlap

  • Kita alps

    IUCN IV

    National Wildlife Protection Area

    9.10 km² overlap

  • Senkoji

    IUCN IV

    Prefectural Wildlife Protection Area

    1.67 km² overlap

  • Hikagedaira

    IUCN IV

    Prefectural Wildlife Protection Area

    1.10 km² overlap

  • Senkouji

    IUCN V

    Green Space Environment Conservation Area(Gifu)

    0.38 km² overlap

  • Norikura

    IUCN IV

    Prefectural Wildlife Protection Area

    0.24 km² overlap

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

Species present

417 distinct species · 796 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

796 obs · 5 cellules
Obs. / cellule
≥ 285
285–284
260–284
129–259
< 129

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

Ecological tissue

Sample of 29 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 小八賀川 : 20 espèces reliées par 39 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
39
Connectance
0.096
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°

6,8°C

Annual rain

1 884mm

Moisture idx (CMI)

0,55

Runoff

1 293mm/an

PET

828mm

AET

827mm

Mean slope

16,4°

Water table

491cm

Forest

86%

Crops

15%

Urban

0%

Protected

33%

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