HydroBASINS lev08 watershed · #4080005710
Bassin de 大沙河
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 : Dandong, P'ihyŏn, Sinŭiju, Ŭiju
Sub-basin area
623,8km²
Upstream area
62 213km²
Discharge
596m³/s
Mean elev.
63m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de 叆河588 km²
- Bassin de 鸭绿江 압록강467 km²
4 dept-equivalent regions (GADM L2)
- 406.7 km²65.1% of basin
- 122.8 km²19.7% of basin
- SinŭijuSinŭiju · North Korea79.6 km²12.8% of basin
- 15.3 km²2.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
268 distinct species · 622 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 大沙河 : 28 espèces reliées par 50 interactions GloBI sur 4 types (connectance 6.7%, 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°
8,6°C
Annual rain
1 028mm
Moisture idx (CMI)
0,14
Runoff
402mm/an
PET
881mm
AET
758mm
Mean slope
4,6°
Water table
160cm
Forest
26%
Crops
30%
Urban
37%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)