HydroBASINS lev08 watershed · #4080542210
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 5 administrative regions : Chungju, Eumseong, Jecheon, Wonju, Yeoju
Sub-basin area
521,8km²
Upstream area
8 737km²
Discharge
165,79m³/s
Mean elev.
209m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 남한강2481 km²
- Bassin de 달천1586 km²
5 dept-equivalent regions (GADM L2)
- 400.4 km²76.7% of basin
- 115.8 km²22.2% of basin
- 2.7 km²0.5% of basin
- Eumseong1.9 km²0.4% of basin
- 1.3 km²0.3% of basin
4 intersecting protected areas
Catchment Reserve Protection Area
25.96 km² overlap
Riparian Buffer Zone
25.92 km² overlap
Chungju Binaeseom
IUCN IVWetland Protected Area
0.93 km² overlap
Forest Genetic Resources Reserve
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 001 distinct species · 14 869 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 : 35 espèces reliées par 95 interactions GloBI sur 5 types (connectance 8.4%, filtre Serrano α=0.2). 13 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°
10,7°C
Annual rain
1 260mm
Moisture idx (CMI)
0,16
Runoff
624mm/an
PET
1 057mm
AET
936mm
Mean slope
10,7°
Water table
456cm
Forest
55%
Crops
21%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)