Ontologia

HydroBASINS lev08 watershed · #4080043180

Bassin de 信濃川

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 11 administrative regions : Gosen, Kamo, Mitsuke, Nagaoka, Niigata +6

Coastal basin 2% lakePfafstetter: 41301310

Sub-basin area

1 611,6km²

Upstream area

1 611,6km²

Discharge

2,05m³/s

Mean elev.

142m

Administrative coverage

11 dept-equivalent regions (GADM L2)

3 more

30 intersecting protected areas

21 more protected areas

  • Sumon

    IUCN IV

    Prefectural Wildlife Protection Area

    11.06 km² overlap

  • Nagaoka higashiyama yamamoto yama

    IUCN V

    Prefectural Natural Park

    10.06 km² overlap

  • Sumondake

    IUCN IV

    Biocenosis Protected Forest

    7.40 km² overlap

  • Miyayorikami

    IUCN IV

    Prefectural Wildlife Protection Area

    6.08 km² overlap

  • Akiha

    IUCN IV

    Prefectural Wildlife Protection Area

    2.81 km² overlap

  • Sakata

    IUCN IV

    National Wildlife Protection Area

    2.36 km² overlap

  • Toyanogata

    IUCN IV

    Prefectural Wildlife Protection Area

    2.09 km² overlap

  • Tochiochuo

    IUCN IV

    Prefectural Wildlife Protection Area

    1.59 km² overlap

  • Okuaizu

    IUCN Ib

    Forest Ecosystem Reserve

    1.35 km² overlap

  • Tadami

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    1.33 km² overlap

  • Sakata

    IUCN II

    Wetland of International Importance (Ramsar Site)

    0.81 km² overlap

  • Akihayama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.69 km² overlap

  • Yukyuzan

    IUCN IV

    Prefectural Wildlife Protection Area

    0.38 km² overlap

  • Nitta kannonyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.33 km² overlap

  • Nakanomata

    IUCN IV

    Prefectural Wildlife Protection Area

    0.28 km² overlap

  • Hodahashi Buna Idenshigen

    IUCN IV

    Rare Population Protected Forest

    0.18 km² overlap

  • Kamoyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.16 km² overlap

  • Yagigahana

    IUCN IV

    Prefectural Wildlife Protection Area

    0.14 km² overlap

  • Magoigaike Amagoiruritombo

    IUCN IV

    Rare Population Protected Forest

    0.13 km² overlap

  • Happodai ikoino mori

    IUCN IV

    Prefectural Wildlife Protection Area

    0.13 km² overlap

  • Gomadou

    IUCN V

    Green Space Environment Conservation Area(Niigata)

    0.09 km² overlap

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

Species present

1 451 distinct species · 29 456 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

29 456 obs · 47 cellules
Obs. / cellule
≥ 15 245
448–15 244
77–447
52–76
< 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 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 信濃川 : 21 espèces reliées par 38 interactions GloBI sur 3 types (connectance 10.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
38
Connectance
0.101
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°

12,3°C

Annual rain

1 995mm

Moisture idx (CMI)

0,54

Runoff

1 403mm/an

PET

915mm

AET

891mm

Mean slope

6,2°

Water table

188cm

Forest

42%

Crops

21%

Urban

40%

Protected

20%

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