HydroBASINS lev08 watershed · #4080005050
Bassin de 한강
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 49 administrative regions : Ansan, Anyang, Bucheon, Dobong, Dongdaemun +44
Sub-basin area
2 268,3km²
Upstream area
25 245,3km²
Discharge
492,41m³/s
Mean elev.
133m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de 남한강2089 km²
- Bassin de 북한강755 km²
49 dept-equivalent regions (GADM L2)
- 401.2 km²17.7% of basin
- 273.9 km²12.1% of basin
- 236.2 km²10.4% of basin
- 141.6 km²6.2% of basin
- 92.9 km²4.1% of basin
- Goyang85.9 km²3.8% of basin
- 81.8 km²3.6% of basin
- Pocheon72.2 km²3.2% of basin
41 moreFull L2 list
- Anyang57.9 km² · 2.6%
- Seocho46.9 km² · 2.1%
- Uiwang43.1 km² · 1.9%
- Yangju40.8 km² · 1.8%
- Gangnam39.4 km² · 1.7%
- Gwangmyeong38.5 km² · 1.7%
- Gwacheon35.8 km² · 1.6%
- Nowon35.6 km² · 1.6%
- Songpa33.8 km² · 1.5%
- Guri33.2 km² · 1.5%
- Gwanak29.7 km² · 1.3%
- Eunpyeong29.7 km² · 1.3%
- Gangseo29.2 km² · 1.3%
- Gangdong24.6 km² · 1.1%
- Yeongdeungpo24.6 km² · 1.1%
- Seongbuk24.6 km² · 1.1%
- Jongno24.0 km² · 1.1%
- Mapo23.9 km² · 1.1%
- Gangbuk23.6 km² · 1.0%
- Yongsan21.8 km² · 1.0%
- Dobong20.7 km² · 0.9%
- Guro20.0 km² · 0.9%
- Jungnang18.5 km² · 0.8%
- Seodaemun17.7 km² · 0.8%
- Yangcheon17.3 km² · 0.8%
- Gwangjin17.0 km² · 0.8%
- Seongdong16.8 km² · 0.7%
- Dongjak16.4 km² · 0.7%
- Gunpo16.2 km² · 0.7%
- Dongdaemun14.3 km² · 0.6%
- Geumcheon13.0 km² · 0.6%
- Siheung12.7 km² · 0.6%
- Jung10.0 km² · 0.4%
- Bucheon8.8 km² · 0.4%
- Yeoju1.0 km² · 0.0%
- Gapyeong0.6 km² · 0.0%
- Gimpo0.6 km² · 0.0%
- Suwon0.5 km² · 0.0%
- Icheon0.3 km² · 0.0%
- Yangpyeong0.3 km² · 0.0%
- Ansan0.0 km² · 0.0%
30 intersecting protected areas
Paldang lake special measure areas for water quality conservation, class 1 district, 2 district
IUCN VISpecial measure areas
572.52 km² overlap
Gwangneung Forest
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
103.53 km² overlap
Paldang(Gwangju)
IUCN VIWater Source Protection Area
65.70 km² overlap
Bukhansan
IUCN VNational Park
64.63 km² overlap
Urban Natural Park Areas
40.80 km² overlap
Riparian Buffer Zone
35.96 km² overlap
Namhansanseong
IUCN VProvincial Park
34.84 km² overlap
Catchment Reserve Protection Area
18.74 km² overlap
Urban Natural Park Areas
9.02 km² overlap
21 more protected areassorted by overlap area
Paldang(Namyangju)
IUCN VIWater Source Protection Area
8.57 km² overlap
Natural Environment Conservation Areas
7.32 km² overlap
Paldang(Hanam)
IUCN VIWater Source Protection Area
6.98 km² overlap
Jamsil
IUCN VIWater Source Protection Area
6.40 km² overlap
Natural Monument
6.15 km² overlap
Wildlife Protection Area
5.07 km² overlap
Cheonmasan County Park
IUCN VCounty Park
4.26 km² overlap
Uijeongbu
IUCN VIWater Source Protection Area
3.73 km² overlap
Scenic Site
3.67 km² overlap
Surisan
IUCN VProvincial Park
3.39 km² overlap
Seoul Seochogu Wonjidong
IUCN IVWildlife Protection Area
3.39 km² overlap
Gyeonggi Gwangju Chowoleup
IUCN IVWildlife Protection Area
2.50 km² overlap
Gyeonggi Anyang Dongangu
IUCN IVWildlife Protection Area
2.46 km² overlap
Wildlife Protection Area
2.26 km² overlap
Wildlife Protection Area
1.42 km² overlap
Wildlife Protection Area
1.41 km² overlap
Wildlife Protection Area
1.34 km² overlap
Wildlife Protection Area
1.21 km² overlap
Gyeonggi Goyang Deokyanggu 1
IUCN IVWildlife Protection Area
1.21 km² overlap
Tancheon
IUCN IVEcosystem and Landscape Conservation Area
1.16 km² overlap
Gyeonggi Anyang Manangu
IUCN IVWildlife Protection Area
0.95 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 708 distinct species · 479 865 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 한강 : 28 espèces reliées par 71 interactions GloBI sur 5 types (connectance 9.6%, 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°
11,1°C
Annual rain
1 384mm
Moisture idx (CMI)
0,28
Runoff
700mm/an
PET
999mm
AET
912mm
Mean slope
8,0°
Water table
329cm
Forest
39%
Crops
4%
Urban
72%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)