Ontologia

HydroBASINS lev08 watershed · #4080043390

Bassin de 最上川

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 8 administrative regions : Mamurogawa, Mikawa, Sakata, Sakegawa, Shōnai +3

Pfafstetter: 41301341

Sub-basin area

932km²

Upstream area

6 879,9km²

Discharge

238,09m³/s

Mean elev.

299m

Administrative coverage

Hydrographic chain

▼ Drains into

Outlet (drains to ocean / endorheic)

▲ Receives from 2 basins

8 dept-equivalent regions (GADM L2)

13 intersecting protected areas

  • Chokai-Asahi and Iide-Azuma

    IUCN V

    Green Corridor

    96.97 km² overlap

  • Bandai asahi

    IUCN II

    National Park

    90.56 km² overlap

  • Gassan

    IUCN IV

    Biocenosis Protected Forest

    46.49 km² overlap

  • Mogami gawa

    IUCN V

    Prefectural Natural Park

    19.07 km² overlap

  • Tachiyazawa

    IUCN IV

    Prefectural Wildlife Protection Area

    17.66 km² overlap

  • Imagami yama

    IUCN V

    Prefectural Nature Conservation Area

    6.76 km² overlap

  • Imagami

    IUCN IV

    Prefectural Wildlife Protection Area

    6.03 km² overlap

  • Chokaino mori

    IUCN IV

    Prefectural Wildlife Protection Area

    4.49 km² overlap

  • Hagurosan

    IUCN IV

    Prefectural Wildlife Protection Area

    3.59 km² overlap

4 more protected areas

  • Yamanouchi Sugi

    IUCN IV

    Rare Population Protected Forest

    2.62 km² overlap

  • Toyo

    IUCN IV

    Prefectural Wildlife Protection Area

    0.82 km² overlap

  • Kiyokawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.72 km² overlap

  • Mogamigawa kako

    IUCN IV

    National Wildlife Protection Area

    0.47 km² overlap

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

Species present

983 distinct species · 2 965 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 965 obs · 28 cellules
Obs. / cellule
≥ 440
327–439
91–326
77–90
< 77

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

Ecological tissue

Sample of 34 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 最上川 : 27 espèces reliées par 43 interactions GloBI sur 5 types (connectance 7.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
43
Connectance
0.072
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°

10,3°C

Annual rain

1 906mm

Moisture idx (CMI)

0,54

Runoff

1 296mm/an

PET

875mm

AET

857mm

Mean slope

10,3°

Water table

327cm

Forest

64%

Crops

11%

Urban

4%

Protected

15%

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