Ontologia

HydroBASINS lev08 watershed · #4080544150

Bassin de 社川

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 14 administrative regions : Asakawa, Furudono, Hirata, Ishikawa, Kōriyama +9

2% lakePfafstetter: 41301548

Sub-basin area

417,2km²

Upstream area

417,4km²

Discharge

9,89m³/s

Mean elev.

436m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 阿武隈川159 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

14 dept-equivalent regions (GADM L2)

6 more

15 intersecting protected areas

  • Yomogidayama

    IUCN IV

    Prefectural Wildlife Protection Area

    17.21 km² overlap

  • Hirata

    IUCN IV

    Prefectural Wildlife Protection Area

    7.11 km² overlap

  • Bobata

    IUCN IV

    Prefectural Wildlife Protection Area

    6.64 km² overlap

  • Yamahashi

    IUCN IV

    Prefectural Wildlife Protection Area

    5.12 km² overlap

  • Ishikawa

    IUCN IV

    Prefectural Wildlife Protection Area

    4.55 km² overlap

  • Nanko

    IUCN V

    Prefectural Natural Park

    4.53 km² overlap

  • Sekisan

    IUCN V

    Prefectural Nature Conservation Area

    1.95 km² overlap

  • Sawai

    IUCN IV

    Prefectural Wildlife Protection Area

    1.71 km² overlap

  • Nishino

    IUCN IV

    Prefectural Wildlife Protection Area

    1.54 km² overlap

6 more protected areas

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

Species present

1 014 distinct species · 3 363 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 363 obs · 14 cellules
Obs. / cellule
≥ 2 156
295–2 155
122–294
72–121
< 72

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

Ecological tissue

Sample of 25 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 社川 : 21 espèces reliées par 39 interactions GloBI sur 3 types (connectance 10.3%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
39
Connectance
0.103
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°

10,9°C

Annual rain

1 418mm

Moisture idx (CMI)

0,35

Runoff

749mm/an

PET

921mm

AET

914mm

Mean slope

6,0°

Water table

221cm

Forest

65%

Crops

22%

Urban

6%

Protected

13%

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