HydroBASINS lev08 watershed · #4080564730
Bassin de 반변천
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 9 administrative regions : Andong, Bonghwa, Cheongsong, Pohang, Uiseong +4
Sub-basin area
1 930,5km²
Upstream area
1 930,5km²
Discharge
29,7m³/s
Mean elev.
389m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- Cheongsong793.4 km²41.1% of basin
- Yeongyang652.1 km²33.8% of basin
- 457.0 km²23.7% of basin
- 24.1 km²1.2% of basin
- Bonghwa1.9 km²0.1% of basin
- 1.2 km²0.1% of basin
- Uiseong1.2 km²0.1% of basin
- 0.1 km²0.0% of basin
1 moreFull L2 list
- Uljin0.0 km² · 0.0%
30 intersecting protected areas
Riparian Buffer Zone
151.81 km² overlap
Natural Environment Conservation Areas
68.04 km² overlap
Juwangsan
IUCN IINational Park
65.90 km² overlap
Forest Genetic Resources Reserve
42.25 km² overlap
Catchment Reserve Protection Area
22.10 km² overlap
Scenic Site
8.90 km² overlap
Wildlife Protection Area
4.71 km² overlap
Wildlife Protection Area
4.31 km² overlap
Landscape Reserve
IUCN IVLandscape Reserve
4.12 km² overlap
21 more protected areassorted by overlap area
Scenic Site
2.29 km² overlap
Andong
IUCN VIWater Source Protection Area
2.24 km² overlap
Wildlife Protection Area
1.26 km² overlap
Disaster Prevention Reserve
IUCN IVDisaster Prevention Reserve
0.57 km² overlap
Jinbo
IUCN VIWater Source Protection Area
0.48 km² overlap
Cheongsong
IUCN VIWater Source Protection Area
0.47 km² overlap
Wildlife Protection Area
0.41 km² overlap
Wildlife Protection Area
0.37 km² overlap
Yeongyang
IUCN VIWater Source Protection Area
0.32 km² overlap
Andeok
IUCN VIWater Source Protection Area
0.26 km² overlap
Scenic Site
0.25 km² overlap
Wildlife Protection Area
0.22 km² overlap
Ibam
IUCN VIWater Source Protection Area
0.19 km² overlap
Irwol
IUCN VIWater Source Protection Area
0.17 km² overlap
Seokbo
IUCN VIWater Source Protection Area
0.15 km² overlap
Cheonggi
IUCN VIWater Source Protection Area
0.11 km² overlap
Bunam
IUCN VIWater Source Protection Area
0.08 km² overlap
Scenic Site
0.04 km² overlap
Budong
IUCN VIWater Source Protection Area
0.04 km² overlap
Natural Monument
0.02 km² overlap
Natural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 825 distinct species · 57 070 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 반변천 : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 5 types (connectance 7.6%, filtre Serrano α=0.2). 10 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°
10,6°C
Annual rain
1 155mm
Moisture idx (CMI)
0,13
Runoff
473mm/an
PET
995mm
AET
901mm
Mean slope
13,3°
Water table
520cm
Forest
77%
Crops
4%
Urban
1%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)