Ontologia

Rivière· 10 segments

五行川

Crosses 9 administrative regions : Chikusei, Haga, Ichikai, Kaminokawa, Mōka +4

rivière

Total length

58km

Max discharge

9,5m³/s

Max Strahler

4

Segments matched

10

River geography9 admin regions · 0 communes

Parent watershed

hybas-4080582850729 km²

9 administrative regions crossed (GADM L2)

  • Haga
    Tochigi · Japan
    18.4 km
    in this dpt
  • Mōka
    Tochigi · Japan
    16.0 km
    in this dpt
  • Chikusei
    Ibaraki · Japan
    10.7 km
    in this dpt
  • Takanezawa
    Tochigi · Japan
    8.8 km
    in this dpt
  • Ninomiya
    Tochigi · Japan
    4.8 km
    in this dpt
  • Sakura
    Tochigi · Japan
    2.4 km
    in this dpt
  • Utsunomiya
    Tochigi · Japan
    1.3 km
    in this dpt
  • Kaminokawa
    Tochigi · Japan
    0.0 km
    in this dpt
  • Ichikai
    Tochigi · Japan
    0.0 km
    in this dpt

2 intersecting protected areas

  • Igashira koen

    IUCN IV

    Prefectural Wildlife Protection Area

  • Jouchinji

    IUCN V

    Green Space Environment Conservation Area(Tochigi)

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

213 distinct species · 5 900 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 24 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 五行川 : 19 espèces reliées par 48 interactions GloBI sur 3 types (connectance 11.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
48
Connectance
0.110
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydrology (HydroRIVERS v10)

Total length

58km

Max discharge

9,5m³/s

Max Strahler

4

Segments matched

10

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.