Ontologia

HydroBASINS lev08 watershed · #4080508180

Bassin de 最上川

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 20 administrative regions : Aga, Asahi, Fukushima, Iide, Kaminoyama +15

Pfafstetter: 41301349

Sub-basin area

2 144,7km²

Upstream area

2 144,7km²

Discharge

58,56m³/s

Mean elev.

512m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 最上川23 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

20 dept-equivalent regions (GADM L2)

12 more

30 intersecting protected areas

  • Bandai asahi

    IUCN II

    National Park

    103.44 km² overlap

  • Kennan

    IUCN V

    Prefectural Natural Park

    96.89 km² overlap

  • Asahi Sanchi

    IUCN Ib

    Forest Ecosystem Reserve

    78.53 km² overlap

  • Otori asahi

    IUCN IV

    National Wildlife Protection Area

    62.07 km² overlap

  • Nurumata sawa-Nogawa

    IUCN V

    Prefectural Nature Conservation Area

    37.66 km² overlap

  • Azuma

    IUCN IV

    Prefectural Wildlife Protection Area

    35.58 km² overlap

  • Chokai-Asahi and Iide-Azuma

    IUCN V

    Green Corridor

    33.94 km² overlap

  • Iidesan

    IUCN IV

    Prefectural Wildlife Protection Area

    33.26 km² overlap

  • Kijiyama-nogawa

    IUCN IV

    Prefectural Wildlife Protection Area

    29.46 km² overlap

21 more protected areas

  • Azumayama Shuhen

    IUCN Ib

    Forest Ecosystem Reserve

    25.12 km² overlap

  • Shirakawa

    IUCN IV

    Prefectural Wildlife Protection Area

    19.11 km² overlap

  • Aizometoge

    IUCN IV

    Prefectural Wildlife Protection Area

    17.96 km² overlap

  • Iidesan Shuhen

    IUCN Ib

    Forest Ecosystem Reserve

    17.60 km² overlap

  • Higashine

    IUCN IV

    Prefectural Wildlife Protection Area

    16.02 km² overlap

  • Tsugamine・Iimoriyama

    IUCN IV

    Biocenosis Protected Forest

    10.22 km² overlap

  • Daizumoriyama

    IUCN IV

    Prefectural Wildlife Protection Area

    8.14 km² overlap

  • Ayukai

    IUCN IV

    Prefectural Wildlife Protection Area

    5.48 km² overlap

  • Ohirayama

    IUCN IV

    Prefectural Wildlife Protection Area

    2.23 km² overlap

  • Onuma

    IUCN IV

    Prefectural Wildlife Protection Area

    2.01 km² overlap

  • Aizu Mountains

    IUCN V

    Green Corridor

    2.00 km² overlap

  • Sengenji ura

    IUCN IV

    Prefectural Wildlife Protection Area

    1.93 km² overlap

  • Shimokomatsu

    IUCN V

    Satoyama Environment Conservation Area(Yamagata)

    1.54 km² overlap

  • Urabandai

    IUCN IV

    Prefectural Wildlife Protection Area

    0.89 km² overlap

  • Aterazawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.61 km² overlap

  • Azumayama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.44 km² overlap

  • Moniwa

    IUCN V

    Prefectural Nature Conservation Area

    0.43 km² overlap

  • Shibakura

    IUCN IV

    Prefectural Wildlife Protection Area

    0.36 km² overlap

  • Tsugamine

    IUCN V

    Prefectural Nature Conservation Area

    0.34 km² overlap

  • Iide

    IUCN IV

    Prefectural Wildlife Protection Area

    0.22 km² overlap

  • Asanomata Himekomatsu

    IUCN IV

    Rare Population Protected Forest

    0.07 km² overlap

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

Species present

2 426 distinct species · 12 320 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 320 obs · 64 cellules
Obs. / cellule
≥ 1 438
392–1 437
191–391
113–190
< 113

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

Ecological tissue

Sample of 19 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 最上川 : 13 espèces reliées par 23 interactions GloBI sur 2 types (connectance 11.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
23
Connectance
0.110
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°

9,7°C

Annual rain

1 608mm

Moisture idx (CMI)

0,44

Runoff

864mm/an

PET

894mm

AET

852mm

Mean slope

12,0°

Water table

399cm

Forest

71%

Crops

9%

Urban

8%

Protected

18%

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