Ontologia

HydroBASINS lev08 watershed · #4080961020

Bassin de 郡大溪

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 2 administrative regions : Hualien, Nantou

Pfafstetter: 43700146

Sub-basin area

688,4km²

Upstream area

688,6km²

Discharge

35,35m³/s

Mean elev.

2 163m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 濁水溪148 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Danda

    IUCN IV

    Major Wildlife Habitat

    577.45 km² overlap

  • Yushan

    IUCN II

    National Park

    99.63 km² overlap

  • Yuli

    IUCN IV

    Major Wildlife Habitat

    1.39 km² overlap

  • Yuli Wildlife Refuge

    IUCN IV

    Wildlife Refuge

    1.39 km² overlap

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

Species present

2 420 distinct species · 9 441 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 441 obs · 20 cellules
Obs. / cellule
≥ 4 136
1 372–4 135
328–1 371
189–327
< 189

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

Ecological tissue

Sample of 33 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 郡大溪 : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 24 interactions GloBI sur 3 types (connectance 4.5%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
24
Connectance
0.045
Patrimoniales
1
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°

12,0°C

Annual rain

3 052mm

Moisture idx (CMI)

0,66

Runoff

1 587mm/an

PET

937mm

AET

915mm

Mean slope

28,8°

Water table

873cm

Forest

75%

Crops

2%

Urban

0%

Protected

14%

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