Ontologia

HydroBASINS lev08 watershed · #4080612350

Bassin de 大千瀬川

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 9 administrative regions : Hamamatsu, Neba, Shinshiro, Shitara, Tenryū +4

4% lakePfafstetter: 41301764

Sub-basin area

358,8km²

Upstream area

358,8km²

Discharge

12,44m³/s

Mean elev.

643m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 水窪川340 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

9 dept-equivalent regions (GADM L2)

1 more

13 intersecting protected areas

  • Tenryu-Okumikawa

    IUCN V

    Quasi National Park

    43.92 km² overlap

  • Furikusa kogen

    IUCN V

    Prefectural Natural Park

    21.31 km² overlap

  • Mennoki

    IUCN IV

    Prefectural Wildlife Protection Area

    1.86 km² overlap

  • Chausuyama

    IUCN IV

    Prefectural Wildlife Protection Area

    1.85 km² overlap

  • Midoriko

    IUCN IV

    Prefectural Wildlife Protection Area

    1.31 km² overlap

  • Tatsuyamacho omine

    IUCN IV

    Prefectural Wildlife Protection Area

    0.62 km² overlap

  • Atebi

    IUCN IV

    Prefectural Wildlife Protection Area

    0.30 km² overlap

  • Horaiko

    IUCN IV

    Prefectural Wildlife Protection Area

    0.23 km² overlap

  • Shiratori yama

    IUCN V

    Prefectural Nature Conservation Area

    0.13 km² overlap

4 more protected areas

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

Species present

1 234 distinct species · 3 892 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 892 obs · 10 cellules
Obs. / cellule
≥ 1 653
1 653–1 652
436–1 652
188–435
< 188

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

Ecological tissue

Sample of 21 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 大千瀬川 : 20 espèces reliées par 13 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
13
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°

12,2°C

Annual rain

2 234mm

Moisture idx (CMI)

0,56

Runoff

1 100mm/an

PET

976mm

AET

976mm

Mean slope

17,0°

Water table

573cm

Forest

98%

Crops

1%

Urban

0%

Protected

19%

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