HydroBASINS lev08 watershed · #4080542040
Bassin de 섬강
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 : Hoengseong, Hongcheon, Jecheon, Pyeongchang, Wonju +2
Sub-basin area
1 488,1km²
Upstream area
1 488,1km²
Discharge
29,19m³/s
Mean elev.
319m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- Hoengseong697.9 km²46.9% of basin
- 621.7 km²41.8% of basin
- Yangpyeong95.6 km²6.4% of basin
- Hongcheon38.9 km²2.6% of basin
- 33.2 km²2.2% of basin
- 0.8 km²0.1% of basin
- 0.7 km²0.0% of basin
17 intersecting protected areas
Natural Environment Conservation Areas
96.52 km² overlap
Chiaksan
IUCN IINational Park
80.63 km² overlap
Catchment Reserve Protection Area
17.37 km² overlap
Forest Genetic Resources Reserve
10.52 km² overlap
Hoengseong Dam
IUCN VIWater Source Protection Area
8.81 km² overlap
Wonju-Je2
IUCN VIWater Source Protection Area
7.58 km² overlap
Gangwo Wonju Heungeopmyeon
IUCN IVWildlife Protection Area
0.33 km² overlap
Riparian Buffer Zone
0.29 km² overlap
Urban Natural Park Areas
0.14 km² overlap
8 more protected areassorted by overlap area
Wildlife Protection Area
0.06 km² overlap
Gangwon Wonju sochomyeon
IUCN IVWildlife Protection Area
0.06 km² overlap
Natural Monument
0.02 km² overlap
Wildlife Protection Area
0.02 km² overlap
Wildlife Protection Area
0.01 km² overlap
Gangwon Wonju Hojeomyeon
IUCN IVWildlife Protection Area
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
4 459 distinct species · 57 375 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 섬강 : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 5 types (connectance 6.3%, filtre Serrano α=0.2). 3 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°
9,7°C
Annual rain
1 332mm
Moisture idx (CMI)
0,22
Runoff
623mm/an
PET
1 031mm
AET
934mm
Mean slope
12,2°
Water table
443cm
Forest
81%
Crops
8%
Urban
8%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)