Ontologia

HydroBASINS lev08 watershed · #4080529420

Bassin de 阿賀川

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 22 administrative regions : Aga, Aizubange, Aizumisato, Aizuwakamatsu, Bandai +17

42% lakePfafstetter: 41301326

Sub-basin area

2 913,6km²

Upstream area

2 913,6km²

Discharge

76,29m³/s

Mean elev.

709m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 阿賀野川566 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

22 dept-equivalent regions (GADM L2)

14 more

30 intersecting protected areas

21 more protected areas

  • Hakaseyama

    IUCN IV

    Prefectural Wildlife Protection Area

    26.15 km² overlap

  • Hatori

    IUCN IV

    Prefectural Wildlife Protection Area

    20.68 km² overlap

  • Iidesan Shuhen

    IUCN Ib

    Forest Ecosystem Reserve

    11.15 km² overlap

  • Kashi・Futamatayama Shuhen

    IUCN IV

    Biocenosis Protected Forest

    10.95 km² overlap

  • Yoneoka

    IUCN IV

    Prefectural Wildlife Protection Area

    10.38 km² overlap

  • Futanuma

    IUCN IV

    Prefectural Wildlife Protection Area

    9.21 km² overlap

  • Tajima

    IUCN IV

    Prefectural Wildlife Protection Area

    8.81 km² overlap

  • Nanatsugatake

    IUCN IV

    Prefectural Wildlife Protection Area

    8.73 km² overlap

  • Iide

    IUCN IV

    Prefectural Wildlife Protection Area

    7.92 km² overlap

  • Iimoriyama

    IUCN IV

    Prefectural Wildlife Protection Area

    7.35 km² overlap

  • Aikawa

    IUCN IV

    Prefectural Wildlife Protection Area

    7.10 km² overlap

  • Otogane

    IUCN IV

    Prefectural Wildlife Protection Area

    6.45 km² overlap

  • Mitsukado

    IUCN IV

    Prefectural Wildlife Protection Area

    6.25 km² overlap

  • Bandaisan gold line

    IUCN IV

    Prefectural Wildlife Protection Area

    5.83 km² overlap

  • Komado shitsugen

    IUCN IV

    Prefectural Wildlife Protection Area

    5.37 km² overlap

  • Odayama

    IUCN IV

    Prefectural Wildlife Protection Area

    5.07 km² overlap

  • Fukura

    IUCN IV

    Prefectural Wildlife Protection Area

    4.87 km² overlap

  • Nanatsuga take

    IUCN V

    Prefectural Nature Conservation Area

    3.92 km² overlap

  • Numaziri

    IUCN IV

    Prefectural Wildlife Protection Area

    3.78 km² overlap

  • Omotebandai

    IUCN IV

    Prefectural Wildlife Protection Area

    3.70 km² overlap

  • Yoshigadaira dam

    IUCN IV

    Prefectural Wildlife Protection Area

    2.35 km² overlap

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

Species present

2 768 distinct species · 21 079 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 079 obs · 88 cellules
Obs. / cellule
≥ 3 506
556–3 505
200–555
87–199
< 87

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

Ecological tissue

Sample of 30 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 阿賀川 : 24 espèces reliées par 37 interactions GloBI sur 3 types (connectance 8.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
37
Connectance
0.085
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°

9,0°C

Annual rain

1 556mm

Moisture idx (CMI)

0,42

Runoff

837mm/an

PET

874mm

AET

841mm

Mean slope

12,5°

Water table

394cm

Forest

76%

Crops

11%

Urban

6%

Protected

30%

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