HydroBASINS lev08 watershed · #4080003430
Bassin de 남대천
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 : Anbyŏn, Hoeyang, Kosan, Pŏptong, Sep'o +2
Sub-basin area
952,4km²
Upstream area
952,5km²
Discharge
22,44m³/s
Mean elev.
423m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- 368.5 km²38.7% of basin
- 364.5 km²38.2% of basin
- 182.8 km²19.2% of basin
- 29.0 km²3.0% of basin
- 6.0 km²0.6% of basin
- 1.7 km²0.2% of basin
- 0.7 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
182 distinct species · 314 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 남대천 : 18 espèces reliées par 14 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 2 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°
8,3°C
Annual rain
1 440mm
Moisture idx (CMI)
0,38
Runoff
698mm/an
PET
897mm
AET
843mm
Mean slope
12,7°
Water table
352cm
Forest
71%
Crops
24%
Urban
17%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)