Ontologia

HydroBASINS lev08 watershed · #4080538750

Bassin de 只見川

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 7 administrative regions : Hinoemata, Katashina, Minakami, Minamiaizu, Minamiuonuma +2

31% lakePfafstetter: 41301328

Sub-basin area

759,8km²

Upstream area

760km²

Discharge

30,53m³/s

Mean elev.

1 160m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 只見川979 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

21 intersecting protected areas

  • Echigosanzan-Tadami

    IUCN II

    Quasi National Park

    548.06 km² overlap

  • Okuaizu

    IUCN Ib

    Forest Ecosystem Reserve

    391.11 km² overlap

  • Tadami

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    239.28 km² overlap

  • Yunotani okutadamiko

    IUCN IV

    Prefectural Wildlife Protection Area

    237.37 km² overlap

  • Okutadami

    IUCN IV

    Prefectural Wildlife Protection Area

    185.39 km² overlap

  • Tadami

    IUCN IV

    Prefectural Wildlife Protection Area

    155.29 km² overlap

  • Oze

    IUCN II

    National Park

    140.74 km² overlap

  • Oze

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    84.69 km² overlap

  • Oze

    IUCN IV

    Prefectural Wildlife Protection Area

    59.83 km² overlap

12 more protected areas

  • Echigo line

    IUCN V

    Green Corridor

    42.43 km² overlap

  • Tonegawa Genryubu・Hiuchigatake Shuhen

    IUCN Ib

    Forest Ecosystem Reserve

    40.54 km² overlap

  • Oze

    IUCN IV

    Prefectural Wildlife Protection Area

    35.81 km² overlap

  • Minakami

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    17.58 km² overlap

  • Aizu Mountains

    IUCN V

    Green Corridor

    11.80 km² overlap

  • Oze

    IUCN IV

    Prefectural Wildlife Protection Area

    3.05 km² overlap

  • Komagadake

    IUCN IV

    Prefectural Wildlife Protection Area

    3.02 km² overlap

  • Asakusadake

    IUCN IV

    Prefectural Wildlife Protection Area

    1.56 km² overlap

  • Tonegawa genryubu

    IUCN Ib

    Nature Conservation Area

    0.21 km² overlap

  • Echigosanzan

    IUCN IV

    Prefectural Wildlife Protection Area

    0.05 km² overlap

  • Hiragatake-shirasawa seimen

    IUCN V

    Prefectural Nature Conservation Area

    0.05 km² overlap

  • Jujikyo

    IUCN IV

    Prefectural Wildlife Protection Area

    0.02 km² overlap

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

Species present

1 252 distinct species · 5 775 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 775 obs · 24 cellules
Obs. / cellule
≥ 2 064
494–2 063
153–493
50–152
< 50

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

Ecological tissue

Sample of 26 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 只見川 : 23 espèces reliées par 25 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
25
Connectance
0.062
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°

6,9°C

Annual rain

1 973mm

Moisture idx (CMI)

0,60

Runoff

1 176mm/an

PET

791mm

AET

789mm

Mean slope

21,3°

Water table

652cm

Forest

50%

Crops

37%

Urban

0%

Protected

98%

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