HydroBASINS lev08 watershed · #4080047060
Bassin de 大漢溪
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 7 administrative regions : Hsinchu County, Keelung, Miaoli, New Taipei, Taipei +2
Sub-basin area
2 699,2km²
Upstream area
2 699,5km²
Discharge
134,79m³/s
Mean elev.
661m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- New TaipeiNew Taipei · Taiwan1429.4 km²53.1% of basin
- 511.4 km²19.0% of basin
- 374.3 km²13.9% of basin
- 261.2 km²9.7% of basin
- 99.1 km²3.7% of basin
- 15.2 km²0.6% of basin
- 3.1 km²0.1% of basin
17 intersecting protected areas
Ci-lan
IUCN IVMajor Wildlife Habitat
278.84 km² overlap
Chatianshan
IUCN IaNature Reserve
79.75 km² overlap
Shei-pa
IUCN IINational Park
52.78 km² overlap
Yangmingshan
IUCN IINational Park
37.85 km² overlap
Wildlife Refuge
12.92 km² overlap
Major Wildlife Habitat
12.92 km² overlap
Pinglin Taiwan Keteleeria
IUCN IaNature Reserve
12.35 km² overlap
Yuanyang Lake
IUCN IaNature Reserve
2.61 km² overlap
Taipei City Waterbird Refuge
IUCN IVWildlife Refuge
1.61 km² overlap
8 more protected areassorted by overlap area
Major Wildlife Habitat
1.61 km² overlap
Hapen
IUCN IaNature Reserve
1.32 km² overlap
Danshuei River Mangrove
IUCN IaNature Reserve
1.16 km² overlap
Guandu
IUCN IaNature Reserve
0.48 km² overlap
Xue-ba
IUCN Not ReportedForest Reserve
0.33 km² overlap
Wildlife Refuge
0.11 km² overlap
Major Wildlife Habitat
0.11 km² overlap
Hokutolite
IUCN IaNature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 198 distinct species · 3 319 513 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 大漢溪 : 17 espèces reliées par 46 interactions GloBI sur 2 types (connectance 13.1%, filtre Serrano α=0.2). 10 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°
18,6°C
Annual rain
2 932mm
Moisture idx (CMI)
0,63
Runoff
1 506mm/an
PET
1 041mm
AET
1 041mm
Mean slope
16,7°
Water table
519cm
Forest
71%
Crops
6%
Urban
27%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)