HydroBASINS lev08 watershed · #4080550470
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 : Bonghwa, Chungju, Danyang, Hoengseong, Jecheon +7
Sub-basin area
2 480,8km²
Upstream area
6 629,4km²
Discharge
125,25m³/s
Mean elev.
480m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 골지천2397 km²
- Bassin de 평창강1752 km²
12 dept-equivalent regions (GADM L2)
- 809.7 km²32.6% of basin
- Danyang751.8 km²30.3% of basin
- Yeongwol454.5 km²18.3% of basin
- 244.4 km²9.8% of basin
- 83.1 km²3.4% of basin
- Mungyeong40.6 km²1.6% of basin
- 38.6 km²1.6% of basin
- Bonghwa31.0 km²1.2% of basin
4 moreFull L2 list
- Taebaek20.9 km² · 0.8%
- Jeongseon6.3 km² · 0.3%
- Hoengseong0.7 km² · 0.0%
- Yecheon0.0 km² · 0.0%
30 intersecting protected areas
Natural Environment Conservation Areas
489.14 km² overlap
Baekdudaegan Mountains Reserve
334.31 km² overlap
Woraksan
IUCN IINational Park
241.64 km² overlap
Catchment Reserve Protection Area
208.31 km² overlap
Sobaeksan
IUCN IINational Park
177.69 km² overlap
Forest Genetic Resources Reserve
35.38 km² overlap
Chiaksan
IUCN IINational Park
33.90 km² overlap
Chungbuk Chungju Suanbomyeon
IUCN IVWildlife Protection Area
25.42 km² overlap
Sangdong
IUCN VIWater Source Protection Area
20.92 km² overlap
21 more protected areassorted by overlap area
Taebaeksan
IUCN VNational Park
13.35 km² overlap
Urban Natural Park Areas
2.99 km² overlap
Chungju Dam
IUCN VIWater Source Protection Area
1.39 km² overlap
Landscape Reserve
IUCN IVLandscape Reserve
1.37 km² overlap
Danyang
IUCN VIWater Source Protection Area
1.20 km² overlap
Scenic Site
0.42 km² overlap
Chungbuk Jecheon Hansumyeon
IUCN IVWildlife Protection Area
0.40 km² overlap
Nodongdonggul Cave, Danyang
IUCN IVNatural Monument
0.36 km² overlap
Ondaldonggul Cave, Danyang
IUCN IVNatural Monument
0.31 km² overlap
Gossigul Cave, Yeongwol
IUCN IVNatural Monument
0.29 km² overlap
Scenic Site
0.21 km² overlap
Baekdudaegan National Aboretum
IUCN Not ApplicableBaekdudaegan National Aboretum
0.18 km² overlap
Scenic Site
0.18 km² overlap
Scenic Site
0.16 km² overlap
Scenic Site
0.15 km² overlap
Natural Monument
0.14 km² overlap
Natural Monument
0.09 km² overlap
Scenic Site
0.08 km² overlap
Natural Monument
0.06 km² overlap
Gosudonggul Cave, Danyang
IUCN IVNatural Monument
0.06 km² overlap
Natural Monument
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 211 distinct species · 66 053 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 : 32 espèces reliées par 72 interactions GloBI sur 5 types (connectance 8.0%, filtre Serrano α=0.2). 11 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°
9,3°C
Annual rain
1 339mm
Moisture idx (CMI)
0,25
Runoff
559mm/an
PET
995mm
AET
923mm
Mean slope
16,1°
Water table
568cm
Forest
82%
Crops
9%
Urban
3%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)