Ontologia

HydroBASINS lev08 watershed · #4080621190

Bassin de 西城川

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 9 administrative regions : Fuchū City, Higashihiroshima, Jinsekikōgen, Mihara, Miyoshi +4

Pfafstetter: 41301148

Sub-basin area

1 336km²

Upstream area

1 336km²

Discharge

33,2m³/s

Mean elev.

470m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 江の川3 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

9 dept-equivalent regions (GADM L2)

1 more

27 intersecting protected areas

  • Hibayama

    IUCN IV

    Prefectural Wildlife Protection Area

    32.10 km² overlap

  • Hiba-Dogo-Taishaku

    IUCN V

    Quasi National Park

    22.81 km² overlap

  • Nanatsuka

    IUCN IV

    Prefectural Wildlife Protection Area

    13.83 km² overlap

  • Haizuka

    IUCN IV

    Prefectural Wildlife Protection Area

    4.48 km² overlap

  • Mount Kounomura in Asahi Forest

    IUCN Not Applicable

    OECM

    4.05 km² overlap

  • Yakunimiyama

    IUCN IV

    Prefectural Wildlife Protection Area

    2.47 km² overlap

  • Fudoki no oka

    IUCN V

    Green Space Environment Conservation Area(Hiroshima)

    1.84 km² overlap

  • Ueno

    IUCN IV

    Prefectural Wildlife Protection Area

    1.28 km² overlap

  • Azuma makiharadani

    IUCN V

    Prefectural Nature Conservation Area

    0.92 km² overlap

18 more protected areas

  • Tudanomyojin yama

    IUCN V

    Prefectural Nature Conservation Area

    0.81 km² overlap

  • Makiharadani

    IUCN IV

    Prefectural Wildlife Protection Area

    0.79 km² overlap

  • Yakunimi yama

    IUCN V

    Prefectural Nature Conservation Area

    0.77 km² overlap

  • Dogoyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.61 km² overlap

  • Kurokawa myojin

    IUCN IV

    Prefectural Wildlife Protection Area

    0.61 km² overlap

  • Shinano taki

    IUCN V

    Prefectural Nature Conservation Area

    0.59 km² overlap

  • Ashidakeyama

    IUCN V

    Green Space Environment Conservation Area(Hiroshima)

    0.59 km² overlap

  • Kurokawanomyojin yama

    IUCN V

    Prefectural Nature Conservation Area

    0.18 km² overlap

  • Nekoyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.11 km² overlap

  • Uedano myojin yama

    IUCN V

    Prefectural Nature Conservation Area

    0.10 km² overlap

  • Nekoyama

    IUCN V

    Prefectural Nature Conservation Area

    0.10 km² overlap

  • Sentsuzan

    IUCN IV

    Prefectural Wildlife Protection Area

    0.06 km² overlap

  • Ootomiyama jouato

    IUCN V

    Green Space Environment Conservation Area(Hiroshima)

    0.06 km² overlap

  • Kamagamine Abemaki・Akamatsu Idenshigen

    IUCN IV

    Rare Population Protected Forest

    0.05 km² overlap

  • Kannose Kyo

    IUCN V

    Prefectural Natural Park

    0.02 km² overlap

  • maki

    IUCN IV

    Prefectural Wildlife Protection Area

    0.01 km² overlap

  • Ojika yama

    IUCN V

    Prefectural Nature Conservation Area

    0.00 km² overlap

  • Ojikayama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.00 km² overlap

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

Species present

1 116 distinct species · 5 269 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 269 obs · 46 cellules
Obs. / cellule
≥ 788
252–787
158–251
59–157
< 59

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

Ecological tissue

Sample of 21 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 西城川 : 16 espèces reliées par 23 interactions GloBI sur 4 types (connectance 10.0%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
23
Connectance
0.100
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°

12,0°C

Annual rain

1 692mm

Moisture idx (CMI)

0,44

Runoff

819mm/an

PET

947mm

AET

943mm

Mean slope

10,8°

Water table

362cm

Forest

93%

Crops

3%

Urban

3%

Protected

5%

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