Ontologia

HydroBASINS lev08 watershed · #4080039610

Bassin de 氷川

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 10 administrative regions : Hikawa, Itsuki, Jōnan, Kami-Amakusa, Kumamoto +5

Coastal basinPfafstetter: 41305501

Sub-basin area

559,6km²

Upstream area

559,6km²

Discharge

1,63m³/s

Mean elev.

171m

Administrative coverage

10 dept-equivalent regions (GADM L2)

2 more
  • Misato0.3 km² · 0.0%
  • Kumamoto0.0 km² · 0.0%

19 intersecting protected areas

  • Itsukigokanosho

    IUCN V

    Prefectural Natural Park

    57.43 km² overlap

  • Common fishery right area(Kumamoto)

    IUCN VI

    Common fishery right area

    48.65 km² overlap

  • Misumi oyano kaihen

    IUCN V

    Prefectural Natural Park

    44.26 km² overlap

  • Kawamata

    IUCN IV

    Prefectural Wildlife Protection Area

    14.81 km² overlap

  • Unzen amakusa

    IUCN V

    National Park

    14.19 km² overlap

  • Oyano

    IUCN IV

    Prefectural Wildlife Protection Area

    12.57 km² overlap

  • Tobase

    IUCN IV

    Prefectural Wildlife Protection Area

    6.96 km² overlap

  • Otake

    IUCN IV

    Prefectural Wildlife Protection Area

    6.67 km² overlap

  • Uki

    IUCN IV

    Prefectural Wildlife Protection Area

    4.51 km² overlap

10 more protected areas

  • Miyahara(hikawa)

    IUCN IV

    Prefectural Wildlife Protection Area

    4.07 km² overlap

  • Ken shonen shizenno ie

    IUCN IV

    Prefectural Wildlife Protection Area

    3.79 km² overlap

  • Toyofuku

    IUCN IV

    Prefectural Wildlife Protection Area

    2.69 km² overlap

  • Ura

    IUCN IV

    Prefectural Wildlife Protection Area

    1.30 km² overlap

  • Hikawa dam

    IUCN IV

    Prefectural Wildlife Protection Area

    0.63 km² overlap

  • Sendantodoro

    IUCN IV

    Prefectural Wildlife Protection Area

    0.52 km² overlap

  • Tankaino

    IUCN IV

    Prefectural Wildlife Protection Area

    0.36 km² overlap

  • Misaka

    IUCN IV

    Prefectural Wildlife Protection Area

    0.06 km² overlap

  • Sengan zan-matsushima

    IUCN IV

    Prefectural Wildlife Protection Area

    0.06 km² overlap

  • Shakain Sugi

    IUCN IV

    Rare Population Protected Forest

    0.02 km² overlap

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

Species present

783 distinct species · 7 966 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 966 obs · 20 cellules
Obs. / cellule
≥ 2 576
1 531–2 575
252–1 530
156–251
< 156

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

Ecological tissue

Sample of 22 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 氷川 : 15 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 55 interactions GloBI sur 2 types (connectance 16.9%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
55
Connectance
0.169
Patrimoniales
2
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°

15,6°C

Annual rain

2 202mm

Moisture idx (CMI)

0,48

Runoff

1 573mm/an

PET

1 112mm

AET

1 110mm

Mean slope

8,2°

Water table

267cm

Forest

48%

Crops

6%

Urban

29%

Protected

29%

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