HydroBASINS lev08 watershed · #4080988520
Bassin de 旗山溪
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 : Chiayi County, Kaohsiung, Nantou, Pingtung, Tainan
Sub-basin area
817,6km²
Upstream area
818km²
Discharge
43,15m³/s
Mean elev.
855m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 668.3 km²81.9% of basin
- 116.0 km²14.2% of basin
- 16.9 km²2.1% of basin
- 11.5 km²1.4% of basin
- 3.0 km²0.4% of basin
6 intersecting protected areas
Yushan
IUCN IINational Park
42.47 km² overlap
Lulinshan
IUCN IVMajor Wildlife Habitat
4.90 km² overlap
Jia-xian Sih-de Fossil
IUCN IIIForest Reserve
4.17 km² overlap
Wildlife Refuge
1.78 km² overlap
Major Wildlife Habitat
1.78 km² overlap
Shih-ba-luo-han-shan
IUCN IIIForest Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 093 distinct species · 251 660 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 旗山溪 : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 2 types (connectance 6.9%, filtre Serrano α=0.2). 4 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°
19,4°C
Annual rain
2 929mm
Moisture idx (CMI)
0,58
Runoff
1 392mm/an
PET
1 206mm
AET
1 039mm
Mean slope
16,8°
Water table
555cm
Forest
78%
Crops
18%
Urban
6%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)