HydroBASINS lev08 watershed · #4080564350
Bassin de 내성천
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 8 administrative regions : Andong, Bonghwa, Danyang, Jecheon, Mungyeong +3
Sub-basin area
1 819,2km²
Upstream area
1 819,2km²
Discharge
27,43m³/s
Mean elev.
328m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- 623.4 km²34.3% of basin
- Yecheon546.2 km²30.0% of basin
- Bonghwa316.9 km²17.4% of basin
- Mungyeong257.8 km²14.2% of basin
- 69.4 km²3.8% of basin
- Danyang5.1 km²0.3% of basin
- Yeongwol1.1 km²0.1% of basin
- 0.0 km²0.0% of basin
30 intersecting protected areas
Natural Environment Conservation Areas
162.37 km² overlap
Sobaeksan
IUCN IINational Park
143.95 km² overlap
Baekdudaegan Mountains Reserve
130.42 km² overlap
Forest Genetic Resources Reserve
17.61 km² overlap
Woraksan
IUCN IINational Park
16.51 km² overlap
Catchment Reserve Protection Area
8.66 km² overlap
Landscape Reserve
IUCN IVLandscape Reserve
4.07 km² overlap
Buseok
IUCN VIWater Source Protection Area
2.05 km² overlap
Sunheung
IUCN VIWater Source Protection Area
1.23 km² overlap
21 more protected areassorted by overlap area
Yonggung
IUCN VIWater Source Protection Area
1.16 km² overlap
Baekdudaegan National Aboretum
IUCN Not ApplicableBaekdudaegan National Aboretum
1.16 km² overlap
Gamcheon
IUCN VIWater Source Protection Area
1.05 km² overlap
Scenic Site
0.79 km² overlap
Yeongju
IUCN VIWater Source Protection Area
0.71 km² overlap
Dalji
IUCN VIWater Source Protection Area
0.70 km² overlap
Disaster Prevention Reserve
IUCN IVDisaster Prevention Reserve
0.55 km² overlap
Wildlife Protection Area
0.48 km² overlap
Scenic Site
0.26 km² overlap
Yecheon
IUCN VIWater Source Protection Area
0.24 km² overlap
Mungyung Dolline
IUCN IVWetland Protected Area
0.24 km² overlap
Scenic Site
0.23 km² overlap
Punggi
IUCN VIWater Source Protection Area
0.22 km² overlap
Natural Monument
0.19 km² overlap
Scenic Site
0.12 km² overlap
Yongmun
IUCN VIWater Source Protection Area
0.12 km² overlap
Wildlife Protection Area
0.05 km² overlap
Gyeongbuk Yeongju Hamangdong
IUCN IVWildlife Protection Area
0.05 km² overlap
Wildlife Protection Area
0.05 km² overlap
Wildlife Protection Area
0.05 km² overlap
Wildlife Protection Area
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 523 distinct species · 48 840 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 내성천 : 32 espèces reliées par 62 interactions GloBI sur 5 types (connectance 7.9%, filtre Serrano α=0.2). 8 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 206mm
Moisture idx (CMI)
0,13
Runoff
481mm/an
PET
1 032mm
AET
919mm
Mean slope
10,3°
Water table
425cm
Forest
40%
Crops
14%
Urban
3%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)