HydroBASINS lev08 watershed · #4080015000
Bassin de Sông Hồng
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 11 administrative regions : Giao Thủy, Hải Hậu, Kiến Xương, Mỹ Lộc, Nam Trực +6
Sub-basin area
555,2km²
Upstream area
138 855,5km²
Discharge
3 379,72m³/s
Mean elev.
2m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Sông Hồng443 km²
- Bassin de Sông Long Xuyên209 km²
11 dept-equivalent regions (GADM L2)
- Kiến XươngThái Bình · Vietnam129.6 km²23.4% of basin
- Vũ ThưThái Bình · Vietnam108.1 km²19.5% of basin
- 76.0 km²13.7% of basin
- Xuân TrườngNam Định · Vietnam63.8 km²11.5% of basin
- 60.6 km²11.0% of basin
- 34.4 km²6.2% of basin
- 33.0 km²6.0% of basin
- 26.2 km²4.7% of basin
2 intersecting protected areas
Red River Delta
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
49.63 km² overlap
Xuan Thuy Natural Wetland Reserve
IUCN Not ReportedWetland of International Importance (Ramsar Site)
30.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
46 distinct species · 56 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Sông Hồng : 20 espèces reliées par 15 interactions GloBI sur 3 types (connectance 7.9%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
24,4°C
Annual rain
1 691mm
Moisture idx (CMI)
0,25
Runoff
913mm/an
PET
1 273mm
AET
1 066mm
Mean slope
0,1°
Water table
3cm
Forest
0%
Crops
47%
Urban
70%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)