HydroBASINS lev08 watershed · #4081062020
Bassin de Sông Lam
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 4 administrative regions : Anh Sơn, Tân Kỳ, Yên Thành, Đô Lương
Sub-basin area
148km²
Upstream area
148km²
Discharge
4,57m³/s
Mean elev.
58m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 93.1 km²63.1% of basin
- 50.6 km²34.3% of basin
- 3.7 km²2.5% of basin
- 0.1 km²0.1% of basin
1 intersecting protected areas
Western Nghe An
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
10.87 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 distinct species · 4 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
24,4°C
Annual rain
1 408mm
Moisture idx (CMI)
0,02
Runoff
974mm/an
PET
1 386mm
AET
1 017mm
Mean slope
3,8°
Water table
187cm
Forest
1%
Crops
25%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)