Ontologia

HydroBASINS lev08 watershed · #4080573970

Bassin de 奈良井川

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 13 administrative regions : Asahi, Hata, Ina, Kamiina, Kiso +8

Pfafstetter: 41301268

Sub-basin area

624,2km²

Upstream area

624,2km²

Discharge

23,17m³/s

Mean elev.

1 077m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 犀川47 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

13 dept-equivalent regions (GADM L2)

5 more

22 intersecting protected areas

  • Yatsugatake-Chushinkogen

    IUCN V

    Quasi National Park

    66.44 km² overlap

  • Utsukushigahara

    IUCN IV

    Prefectural Wildlife Protection Area

    36.60 km² overlap

  • Hongo(fujimi)

    IUCN IV

    Prefectural Wildlife Protection Area

    14.39 km² overlap

  • Shirakawa

    IUCN IV

    Prefectural Wildlife Protection Area

    14.27 km² overlap

  • Higashiyamachiku

    IUCN IV

    Prefectural Wildlife Protection Area

    6.69 km² overlap

  • Chuo alps

    IUCN V

    Quasi National Park

    5.42 km² overlap

  • Enrei

    IUCN IV

    Prefectural Wildlife Protection Area

    1.97 km² overlap

  • Enrei oujo

    IUCN V

    Prefectural Natural Park

    1.14 km² overlap

  • Kiso torii touge

    IUCN V

    Local Environment Conservation Area(Nagano)

    1.04 km² overlap

13 more protected areas

  • Midoriko

    IUCN IV

    Prefectural Wildlife Protection Area

    0.90 km² overlap

  • Hirooka

    IUCN IV

    Prefectural Wildlife Protection Area

    0.84 km² overlap

  • Yokokawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.79 km² overlap

  • Kiyomizudera

    IUCN V

    Local Environment Conservation Area(Nagano)

    0.77 km² overlap

  • Tsukisawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.72 km² overlap

  • Utsukushigahara higashi

    IUCN IV

    Prefectural Wildlife Protection Area

    0.60 km² overlap

  • Hatakurokawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.54 km² overlap

  • Hieinoyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.50 km² overlap

  • Gombee touge

    IUCN V

    Local Environment Conservation Area(Nagano)

    0.36 km² overlap

  • Utsukushigahara

    IUCN IV

    Biocenosis Protected Forest

    0.25 km² overlap

  • Gofukuji hachibuseyama fumoto

    IUCN V

    Local Environment Conservation Area(Nagano)

    0.22 km² overlap

  • Kattsuru

    IUCN IV

    Prefectural Wildlife Protection Area

    0.11 km² overlap

  • Hachimoriyama Kometsuga To 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

3 038 distinct species · 24 370 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 370 obs · 20 cellules
Obs. / cellule
≥ 7 352
2 773–7 351
1 404–2 772
842–1 403
< 842

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

Ecological tissue

Sample of 37 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 奈良井川 : 23 espèces reliées par 63 interactions GloBI sur 5 types (connectance 9.0%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
63
Connectance
0.090
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°

8,8°C

Annual rain

1 445mm

Moisture idx (CMI)

0,31

Runoff

1 165mm/an

PET

934mm

AET

891mm

Mean slope

15,0°

Water table

446cm

Forest

68%

Crops

7%

Urban

24%

Protected

15%

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