HydroBASINS lev08 watershed · #4080046860
Bassin de 大甲溪
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 5 administrative regions : Hsinchu County, Miaoli, Nantou, Taichung, Yilan
Sub-basin area
1 239,8km²
Upstream area
1 239,8km²
Discharge
47,14m³/s
Mean elev.
1 708m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 1125.3 km²91.0% of basin
- 76.3 km²6.2% of basin
- 27.0 km²2.2% of basin
- 5.0 km²0.4% of basin
- 3.5 km²0.3% of basin
9 intersecting protected areas
Shei-pa
IUCN IINational Park
304.91 km² overlap
Taroko
IUCN IINational Park
162.20 km² overlap
Xue-ba
IUCN Not ReportedForest Reserve
88.90 km² overlap
Wildlife Refuge
71.06 km² overlap
Major Wildlife Habitat
71.06 km² overlap
Wildlife Refuge
1.54 km² overlap
Taichung County Gaomei
IUCN IVMajor Wildlife Habitat
1.54 km² overlap
Ci-lan
IUCN IVMajor Wildlife Habitat
0.12 km² overlap
Ruei-yan River
IUCN IVMajor Wildlife Habitat
0.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 728 distinct species · 583 591 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de 大甲溪 : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 33 interactions GloBI sur 3 types (connectance 4.7%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
13,8°C
Annual rain
2 795mm
Moisture idx (CMI)
0,63
Runoff
1 275mm/an
PET
962mm
AET
924mm
Mean slope
22,9°
Water table
726cm
Forest
69%
Crops
6%
Urban
13%
Protected
38%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)