Ontologia

HydroBASINS lev08 watershed · #4080591130

Bassin de 大落古利根川

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 31 administrative regions : Adachi, Ageo, Edogawa, Gyōda, Hanyū +26

Pfafstetter: 41301722

Sub-basin area

634,6km²

Upstream area

634,6km²

Discharge

11,97m³/s

Mean elev.

10m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 中川6 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

31 dept-equivalent regions (GADM L2)

23 more

22 intersecting protected areas

  • Sakitamakofun koen

    IUCN IV

    Prefectural Wildlife Protection Area

    4.64 km² overlap

  • Kawaguchi

    IUCN IV

    Prefectural Wildlife Protection Area

    3.97 km² overlap

  • Angyo bunan

    IUCN V

    Prefectural Natural Park

    3.59 km² overlap

  • Koshigaya

    IUCN IV

    Prefectural Wildlife Protection Area

    1.48 km² overlap

  • Mizumoto koen

    IUCN IV

    Prefectural Wildlife Protection Area

    0.99 km² overlap

  • Tobu dobutsu koen

    IUCN IV

    Prefectural Wildlife Protection Area

    0.48 km² overlap

  • Kuki shobu koen

    IUCN IV

    Prefectural Wildlife Protection Area

    0.44 km² overlap

  • Matsubushi midorinooka koen

    IUCN IV

    Prefectural Wildlife Protection Area

    0.29 km² overlap

  • Misato koen

    IUCN IV

    Prefectural Wildlife Protection Area

    0.27 km² overlap

13 more protected areas

  • Kitamoto

    IUCN IV

    Prefectural Wildlife Protection Area

    0.19 km² overlap

  • Iwatsuki koen

    IUCN IV

    Prefectural Wildlife Protection Area

    0.16 km² overlap

  • Oyoshi

    IUCN IV

    Prefectural Wildlife Protection Area

    0.10 km² overlap

  • Haraichi

    IUCN V

    Special green space conservation districts

    0.05 km² overlap

  • Kazoshi shidami higashi

    IUCN V

    Prefectural Nature Conservation Area

    0.04 km² overlap

  • Shinmeijinja

    IUCN IV

    Prefectural Wildlife Protection Area

    0.04 km² overlap

  • Hasudashi uwanuma

    IUCN V

    Prefectural Nature Conservation Area

    0.03 km² overlap

  • Kazoshi shidami chuo

    IUCN V

    Prefectural Nature Conservation Area

    0.02 km² overlap

  • Kazoshi shidami nishi

    IUCN V

    Prefectural Nature Conservation Area

    0.02 km² overlap

  • Hasudashi shitanuma

    IUCN V

    Prefectural Nature Conservation Area

    0.02 km² overlap

  • Rokuchou ikoi no mori

    IUCN V

    Special green space conservation districts

    0.00 km² overlap

  • Kofukasaku

    IUCN V

    Special green space conservation districts

    0.00 km² overlap

  • Harusato

    IUCN V

    Special green space conservation districts

    0.00 km² overlap

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

Species present

1 724 distinct species · 53 061 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

53 061 obs · 21 cellules
Obs. / cellule
≥ 15 967
6 664–15 966
1 759–6 663
747–1 758
< 747

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

Ecological tissue

Sample of 28 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 大落古利根川 : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 3 types (connectance 11.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
62
Connectance
0.117
Patrimoniales
2
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°

14,8°C

Annual rain

1 365mm

Moisture idx (CMI)

0,24

Runoff

586mm/an

PET

1 030mm

AET

1 003mm

Mean slope

0,2°

Water table

7cm

Forest

0%

Crops

4%

Urban

99%

Protected

2%

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