Ontologia

HydroBASINS lev08 watershed · #4080044450

Bassin de 大北川

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 7 administrative regions : Hanawa, Hitachi, Hitachiōta, Iwaki, Kitaibaraki +2

Coastal basinPfafstetter: 41301559

Sub-basin area

584,7km²

Upstream area

584,7km²

Discharge

1,84m³/s

Mean elev.

278m

Administrative coverage

7 dept-equivalent regions (GADM L2)

24 intersecting protected areas

  • Hanazono hananuki

    IUCN V

    Prefectural Natural Park

    185.26 km² overlap

  • Takaoka

    IUCN IV

    Prefectural Wildlife Protection Area

    43.79 km² overlap

  • Takasuzu

    IUCN V

    Prefectural Natural Park

    19.60 km² overlap

  • Takaboyama

    IUCN IV

    Prefectural Wildlife Protection Area

    18.90 km² overlap

  • Common fishery right area(Ibaraki)

    IUCN VI

    Common fishery right area

    10.65 km² overlap

  • Takahagi

    IUCN IV

    Prefectural Wildlife Protection Area

    8.56 km² overlap

  • Nakoso

    IUCN V

    Prefectural Natural Park

    4.54 km² overlap

  • Juo

    IUCN IV

    Prefectural Wildlife Protection Area

    1.57 km² overlap

  • Takasuzu

    IUCN IV

    Prefectural Wildlife Protection Area

    1.44 km² overlap

15 more protected areas

  • Common fishery right area(Fukushima)

    IUCN VI

    Common fishery right area

    1.39 km² overlap

  • Izura

    IUCN IV

    Prefectural Wildlife Protection Area

    0.97 km² overlap

  • Ishihama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.54 km² overlap

  • Hananuki dam

    IUCN IV

    Prefectural Wildlife Protection Area

    0.35 km² overlap

  • Sarugajo Azumashakunage

    IUCN IV

    Rare Population Protected Forest

    0.29 km² overlap

  • Saimyo ji

    IUCN V

    Prefectural Nature Conservation Area

    0.27 km² overlap

  • Mekane

    IUCN IV

    Prefectural Wildlife Protection Area

    0.26 km² overlap

  • Ozato

    IUCN IV

    Prefectural Wildlife Protection Area

    0.16 km² overlap

  • Itaki Rinboku・Kagonoki

    IUCN IV

    Rare Population Protected Forest

    0.11 km² overlap

  • Kuruma

    IUCN V

    Green Space Environment Conservation Area(Ibaraki)

    0.07 km² overlap

  • Goridaira

    IUCN IV

    Prefectural Wildlife Protection Area

    0.04 km² overlap

  • Shitokigawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.04 km² overlap

  • Shimo souda

    IUCN V

    Green Space Environment Conservation Area(Ibaraki)

    0.03 km² overlap

  • Tokai

    IUCN IV

    Prefectural Wildlife Protection Area

    0.02 km² overlap

  • Toyooka

    IUCN V

    Prefectural Nature Conservation Area

    0.00 km² overlap

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

Species present

2 586 distinct species · 14 549 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 549 obs · 16 cellules
Obs. / cellule
≥ 4 245
3 374–4 244
1 171–3 373
422–1 170
< 422

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

Ecological tissue

Sample of 33 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 大北川 : 26 espèces reliées par 35 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
35
Connectance
0.062
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°

12,3°C

Annual rain

1 504mm

Moisture idx (CMI)

0,39

Runoff

710mm/an

PET

915mm

AET

914mm

Mean slope

7,2°

Water table

242cm

Forest

65%

Crops

10%

Urban

29%

Protected

42%

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