Ontologia

HydroBASINS lev08 watershed · #4080039750

Bassin de 嘉瀬川

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 7 administrative regions : Fukuoka, Kanzaki, Karatsu, Maebaru, Ogi +2

5% lakePfafstetter: 41305712

Sub-basin area

344,5km²

Upstream area

344,6km²

Discharge

12,17m³/s

Mean elev.

311m

Administrative coverage

7 dept-equivalent regions (GADM L2)

17 intersecting protected areas

  • Sefurihokuzan

    IUCN V

    Prefectural Natural Park

    33.14 km² overlap

  • Ten zan

    IUCN V

    Prefectural Natural Park

    21.43 km² overlap

  • Kawakamikinryu

    IUCN V

    Prefectural Natural Park

    15.11 km² overlap

  • Hokuzan dam

    IUCN IV

    Prefectural Wildlife Protection Area

    8.85 km² overlap

  • Okamoto

    IUCN IV

    Prefectural Wildlife Protection Area

    1.34 km² overlap

  • Sefuriyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.89 km² overlap

  • Kashibaru

    IUCN V

    Prefectural Nature Conservation Area

    0.70 km² overlap

  • Kashibaru

    IUCN IV

    Prefectural Wildlife Protection Area

    0.69 km² overlap

  • Sefuri raizan

    IUCN V

    Prefectural Natural Park

    0.59 km² overlap

8 more protected areas

  • Ishiibi

    IUCN IV

    Prefectural Wildlife Protection Area

    0.49 km² overlap

  • Shinrin koen

    IUCN IV

    Prefectural Wildlife Protection Area

    0.37 km² overlap

  • Tenzan

    IUCN IV

    Prefectural Wildlife Protection Area

    0.15 km² overlap

  • Common fishery right area(Saga)

    IUCN VI

    Common fishery right area

    0.10 km² overlap

  • Sakuraoka

    IUCN IV

    Prefectural Wildlife Protection Area

    0.10 km² overlap

  • Ishigama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.08 km² overlap

  • Ikebaru

    IUCN IV

    Prefectural Wildlife Protection Area

    0.01 km² overlap

  • Kinryu

    IUCN IV

    Prefectural Wildlife Protection Area

    0.00 km² overlap

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

Species present

970 distinct species · 3 811 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 811 obs · 13 cellules
Obs. / cellule
≥ 906
622–905
366–621
235–365
< 235

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 嘉瀬川 : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 3 types (connectance 10.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
47
Connectance
0.101
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°

14,5°C

Annual rain

2 074mm

Moisture idx (CMI)

0,51

Runoff

1 155mm/an

PET

990mm

AET

990mm

Mean slope

8,2°

Water table

276cm

Forest

55%

Crops

11%

Urban

24%

Protected

22%

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