Ontologia

HydroBASINS lev08 watershed · #4080527840

Bassin de 阿賀野川

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 8 administrative regions : Aga, Aizubange, Iide, Kitakata, Nishiaizu +3

Pfafstetter: 41301325

Sub-basin area

565,6km²

Upstream area

6 265km²

Discharge

193,68m³/s

Mean elev.

499m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 阿賀野川863 km²

▲ Receives from 2 basins

8 dept-equivalent regions (GADM L2)

16 intersecting protected areas

  • Bandai asahi

    IUCN II

    National Park

    80.96 km² overlap

  • Iidesan Shuhen

    IUCN Ib

    Forest Ecosystem Reserve

    80.40 km² overlap

  • Aizu Mountains

    IUCN V

    Green Corridor

    32.39 km² overlap

  • Agano gawa line

    IUCN V

    Prefectural Natural Park

    10.44 km² overlap

  • Echigosanzan-Tadami

    IUCN II

    Quasi National Park

    9.32 km² overlap

  • Agagawa

    IUCN IV

    Prefectural Wildlife Protection Area

    6.97 km² overlap

  • Takasato

    IUCN IV

    Prefectural Wildlife Protection Area

    5.50 km² overlap

  • Oyama

    IUCN IV

    Prefectural Wildlife Protection Area

    5.19 km² overlap

  • Kijiyotaka yama

    IUCN V

    Prefectural Nature Conservation Area

    4.00 km² overlap

7 more protected areas

  • Iide

    IUCN IV

    Prefectural Wildlife Protection Area

    3.73 km² overlap

  • Aza

    IUCN V

    Prefectural Nature Conservation Area

    3.10 km² overlap

  • Iidesan

    IUCN IV

    Prefectural Wildlife Protection Area

    1.17 km² overlap

  • Kirinzan

    IUCN IV

    Prefectural Wildlife Protection Area

    0.16 km² overlap

  • Tsuchii

    IUCN V

    Prefectural Nature Conservation Area

    0.01 km² overlap

  • Iide Sugi

    IUCN IV

    Rare Population Protected Forest

    0.01 km² overlap

  • Mesashidake Koyamaki Idenshigen

    IUCN IV

    Rare Population Protected Forest

    0.01 km² overlap

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

Species present

713 distinct species · 2 397 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 397 obs · 18 cellules
Obs. / cellule
≥ 1 689
129–1 688
57–128
34–56
< 34

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

Ecological tissue

Sample of 8 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 阿賀野川 : 7 espèces reliées par 9 interactions GloBI sur 2 types (connectance 20.0%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
10
Interactions affichées
9
Connectance
0.200
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°

10,1°C

Annual rain

1 656mm

Moisture idx (CMI)

0,45

Runoff

966mm/an

PET

900mm

AET

859mm

Mean slope

16,0°

Water table

487cm

Forest

75%

Crops

5%

Urban

0%

Protected

21%

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