HydroBASINS lev08 watershed · #4080519030
Bassin de 사미천
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 4 administrative regions across 2 countries : Jangpung, Kŭmch'ŏn, T'osan, Yeoncheon
Sub-basin area
457,4km²
Upstream area
457,4km²
Discharge
10,39m³/s
Mean elev.
146m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 369.1 km²80.7% of basin
- Yeoncheon86.0 km²18.8% of basin
- 1.8 km²0.4% of basin
- 0.7 km²0.2% of basin
3 intersecting protected areas
Forest Genetic Resources Reserve
2.25 km² overlap
Catchment Reserve Protection Area
1.13 km² overlap
Natural Environment Conservation Areas
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
976 distinct species · 3 735 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 사미천 : 25 espèces reliées par 73 interactions GloBI sur 5 types (connectance 11.0%, filtre Serrano α=0.2). 12 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°
10,5°C
Annual rain
1 351mm
Moisture idx (CMI)
0,27
Runoff
716mm/an
PET
982mm
AET
873mm
Mean slope
8,3°
Water table
284cm
Forest
96%
Crops
27%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)