Ontologia

HydroBASINS lev08 watershed · #4080538760

Bassin de 伊南川

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, Kaneyama, Katashina, Minamiaizu, Nikkō +2

Pfafstetter: 41301329

Sub-basin area

1 046,7km²

Upstream area

1 046,7km²

Discharge

36,31m³/s

Mean elev.

1 021m

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)

23 intersecting protected areas

  • Aizu Mountains

    IUCN V

    Green Corridor

    283.00 km² overlap

  • Okuaizu

    IUCN Ib

    Forest Ecosystem Reserve

    259.21 km² overlap

  • Tadami

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    174.66 km² overlap

  • Oze

    IUCN II

    National Park

    101.63 km² overlap

  • Echigosanzan-Tadami

    IUCN II

    Quasi National Park

    45.49 km² overlap

  • Oze

    IUCN IV

    Prefectural Wildlife Protection Area

    25.94 km² overlap

  • Tashiroyama

    IUCN IV

    Prefectural Wildlife Protection Area

    4.51 km² overlap

  • Kurotani

    IUCN IV

    Prefectural Wildlife Protection Area

    4.05 km² overlap

  • Ogawa

    IUCN IV

    Prefectural Wildlife Protection Area

    3.74 km² overlap

14 more protected areas

  • Komagadake

    IUCN IV

    Prefectural Wildlife Protection Area

    1.42 km² overlap

  • Okutadami

    IUCN IV

    Prefectural Wildlife Protection Area

    0.93 km² overlap

  • Shin michizawa

    IUCN V

    Prefectural Nature Conservation Area

    0.79 km² overlap

  • Kuroiwa yama

    IUCN V

    Prefectural Nature Conservation Area

    0.77 km² overlap

  • Nanatsuga take

    IUCN V

    Prefectural Nature Conservation Area

    0.69 km² overlap

  • Oze

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.65 km² overlap

  • Miyatoko shitsugen

    IUCN V

    Prefectural Nature Conservation Area

    0.53 km² overlap

  • Nikko and Azuma Mountains

    IUCN V

    Green Corridor

    0.26 km² overlap

  • Nikko Line

    IUCN V

    Green Corridor

    0.24 km² overlap

  • Oze

    IUCN IV

    Prefectural Wildlife Protection Area

    0.13 km² overlap

  • Nanatsugatake

    IUCN IV

    Prefectural Wildlife Protection Area

    0.08 km² overlap

  • Yunishigawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.06 km² overlap

  • Yunishi gawa

    IUCN V

    Prefectural Nature Conservation Area

    0.06 km² overlap

  • Nikko

    IUCN V

    National Park

    0.00 km² overlap

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

Species present

1 203 distinct species · 3 725 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 725 obs · 31 cellules
Obs. / cellule
≥ 1 454
171–1 453
90–170
46–89
< 46

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

Ecological tissue

Sample of 39 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 伊南川 : 33 espèces reliées par 37 interactions GloBI sur 3 types (connectance 5.0%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
37
Connectance
0.050
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°

7,6°C

Annual rain

1 907mm

Moisture idx (CMI)

0,57

Runoff

1 034mm/an

PET

815mm

AET

811mm

Mean slope

18,4°

Water table

584cm

Forest

91%

Crops

7%

Urban

0%

Protected

15%

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