HydroBASINS lev08 watershed · #4081064900
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 1 administrative regions : Thanh Chương
Sub-basin area
46,6km²
Upstream area
22 724,6km²
Discharge
460,61m³/s
Mean elev.
39m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sông Lam154 km²
- Bassin de Sông Lam54 km²
1 intersecting protected areas
Western Nghe An
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
46.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 1 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°
24,6°C
Annual rain
1 542mm
Moisture idx (CMI)
0,10
Runoff
1 048mm/an
PET
1 394mm
AET
1 067mm
Mean slope
3,6°
Water table
126cm
Forest
2%
Crops
37%
Urban
11%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)