Ontologia

HydroBASINS lev08 watershed · #4080043030

Bassin de 保倉川

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 5 administrative regions : Iiyama, Itoigawa, Jōetsu, Myōkō, Tōkamachi

Coastal basin 2% lakePfafstetter: 41301197

Sub-basin area

899,3km²

Upstream area

899,3km²

Discharge

4,04m³/s

Mean elev.

392m

Administrative coverage

5 dept-equivalent regions (GADM L2)

20 intersecting protected areas

11 more protected areas

  • Hiuchiyamashuhen Xxx

    IUCN IV

    Rare Population Protected Forest

    5.64 km² overlap

  • Hokogadake-gongendake

    IUCN V

    Prefectural Nature Conservation Area

    4.98 km² overlap

  • Nou

    IUCN IV

    Prefectural Wildlife Protection Area

    3.96 km² overlap

  • Hiuchiyama

    IUCN IV

    Prefectural Wildlife Protection Area

    3.55 km² overlap

  • Oike

    IUCN IV

    Prefectural Wildlife Protection Area

    2.16 km² overlap

  • Tsukimizunoike

    IUCN IV

    Prefectural Wildlife Protection Area

    1.21 km² overlap

  • Nonomi

    IUCN IV

    Prefectural Wildlife Protection Area

    0.54 km² overlap

  • Nikanjinomori

    IUCN IV

    Prefectural Wildlife Protection Area

    0.48 km² overlap

  • Amakazari・Tenguharayama

    IUCN IV

    Biocenosis Protected Forest

    0.30 km² overlap

  • Fudouyama

    IUCN V

    Green Space Environment Conservation Area(Niigata)

    0.07 km² overlap

  • Yachi ike

    IUCN V

    Prefectural Nature Conservation Area

    0.03 km² overlap

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

Species present

916 distinct species · 2 587 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 587 obs · 16 cellules
Obs. / cellule
≥ 1 349
330–1 348
118–329
52–117
< 52

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

Ecological tissue

Sample of 4 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 保倉川 : 4 espèces reliées par 3 interactions GloBI sur 1 type (connectance 50.0%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
3
Connectance
0.500
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°

11,4°C

Annual rain

2 034mm

Moisture idx (CMI)

0,53

Runoff

1 748mm/an

PET

940mm

AET

915mm

Mean slope

12,9°

Water table

400cm

Forest

60%

Crops

23%

Urban

5%

Protected

19%

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