HydroBASINS lev08 watershed · #4080518620
Bassin de 한탄강
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 13 administrative regions across 2 countries : Ch'ŏrwŏn, Cheorwon, Dongducheon, Gapyeong, Hwacheon +8
Sub-basin area
2 475km²
Upstream area
2 475km²
Discharge
53,24m³/s
Mean elev.
303m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
13 dept-equivalent regions (GADM L2)
- Pocheon752.4 km²30.4% of basin
- Cheorwon658.1 km²26.6% of basin
- 286.8 km²11.6% of basin
- Yeoncheon284.9 km²11.5% of basin
- 182.3 km²7.4% of basin
- 157.7 km²6.4% of basin
- 95.9 km²3.9% of basin
- 44.3 km²1.8% of basin
30 intersecting protected areas
Gwangneung Forest
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
137.03 km² overlap
Forest Genetic Resources Reserve
50.65 km² overlap
Catchment Reserve Protection Area
32.88 km² overlap
Landscape Reserve
IUCN IVLandscape Reserve
9.08 km² overlap
Cheorwon DMZ Seongjaesan
IUCN VProvincial Park
4.73 km² overlap
Urban Natural Park Areas
4.70 km² overlap
Natural Environment Conservation Areas
2.92 km² overlap
Myeongjisan, Cheonggyesan
IUCN IVEcosystem and Landscape Conservation Area
2.48 km² overlap
Wildlife Protection Area
1.80 km² overlap
21 more protected areassorted by overlap area
Cheorwon Igilli
IUCN IVWetland Protected Area
1.37 km² overlap
Scenic Site
0.77 km² overlap
Wetland Protected Area
0.52 km² overlap
Gyeonggi Yangju Samsungdong
IUCN IVWildlife Protection Area
0.44 km² overlap
Dongsong
IUCN VIWater Source Protection Area
0.40 km² overlap
Natural Monument
0.33 km² overlap
Pocheon
IUCN VIWater Source Protection Area
0.33 km² overlap
Gyeonggi Paju Jeokseongmyeon
IUCN IVWildlife Protection Area
0.31 km² overlap
Natural Monument
0.21 km² overlap
Scenic Site
0.21 km² overlap
Wildlife Protection Area
0.15 km² overlap
Natural Monument
0.13 km² overlap
Uijeongbu
IUCN VIWater Source Protection Area
0.10 km² overlap
Natural Monument
0.05 km² overlap
Gangwon Cheolwon Cheolwoneup
IUCN IVWildlife Protection Area
0.04 km² overlap
Natural Monument
0.03 km² overlap
Scenic Site
0.03 km² overlap
Natural Monument
0.01 km² overlap
Alder Tree of Chogwa-ri, Pocheon
IUCN IIINatural Monument
0.01 km² overlap
Disaster Prevention Reserve
IUCN IVDisaster Prevention Reserve
0.01 km² overlap
DMZ GT Cherwon Crane Land
IUCN Not ApplicableTrust Properties
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 587 distinct species · 87 802 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 한탄강 : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 5 types (connectance 9.6%, filtre Serrano α=0.2). 9 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°
9,5°C
Annual rain
1 442mm
Moisture idx (CMI)
0,33
Runoff
678mm/an
PET
969mm
AET
888mm
Mean slope
10,3°
Water table
365cm
Forest
79%
Crops
11%
Urban
13%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)