HydroBASINS lev08 watershed · #4080533360
Bassin de 남한강
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 12 administrative regions : Anseong, Chungju, Eumseong, Gapyeong, Gwangju +7
Sub-basin area
2 088,5km²
Upstream area
12 313,3km²
Discharge
239,29m³/s
Mean elev.
155m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 섬강1488 km²
- Bassin de 남한강522 km²
12 dept-equivalent regions (GADM L2)
- Yangpyeong611.7 km²29.3% of basin
- 572.1 km²27.4% of basin
- 461.3 km²22.1% of basin
- Eumseong188.8 km²9.0% of basin
- 112.8 km²5.4% of basin
- 106.0 km²5.1% of basin
- 28.6 km²1.4% of basin
- 3.2 km²0.2% of basin
4 moreFull L2 list
- Hongcheon2.2 km² · 0.1%
- Wonju1.8 km² · 0.1%
- Hoengseong1.1 km² · 0.1%
- Gapyeong0.1 km² · 0.0%
22 intersecting protected areas
Paldang lake special measure areas for water quality conservation, class 1 district, 2 district
IUCN VISpecial measure areas
779.14 km² overlap
Catchment Reserve Protection Area
91.34 km² overlap
Riparian Buffer Zone
71.62 km² overlap
Natural Environment Conservation Areas
35.76 km² overlap
Paldang(Gwangju)
IUCN VIWater Source Protection Area
17.32 km² overlap
Paldang(Yangpyeong)
IUCN VIWater Source Protection Area
15.69 km² overlap
Wildlife Protection Area
3.76 km² overlap
Gyeonggi Yeoju Sanbukmyeon
IUCN IVWildlife Protection Area
3.10 km² overlap
Urban Natural Park Areas
2.74 km² overlap
13 more protected areassorted by overlap area
Yeoju
IUCN VIWater Source Protection Area
2.34 km² overlap
Landscape Reserve
IUCN IVLandscape Reserve
0.80 km² overlap
Yangpyeong
IUCN VIWater Source Protection Area
0.57 km² overlap
Gyeonggi Yeoju Cheonsongdong
IUCN IVWildlife Protection Area
0.18 km² overlap
Forest Genetic Resources Reserve
0.13 km² overlap
Scenic Site
0.05 km² overlap
Wildlife Protection Area
0.02 km² overlap
Wildlife Protection Area
0.02 km² overlap
Natural Monument
0.01 km² overlap
Natural Monument
0.01 km² overlap
Natural Monument
0.00 km² overlap
Natural Monument
0.00 km² overlap
Natural Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 204 distinct species · 77 715 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 남한강 : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 4 types (connectance 8.1%, filtre Serrano α=0.2). 7 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°
10,8°C
Annual rain
1 301mm
Moisture idx (CMI)
0,19
Runoff
669mm/an
PET
1 057mm
AET
941mm
Mean slope
7,6°
Water table
322cm
Forest
50%
Crops
13%
Urban
17%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)