HydroBASINS lev08 watershed · #4081032860
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 21 administrative regions : Ba Đình, Bắc Từ Liêm, Cầu Giấy, Gia Lâm, Hai Bà Trưng +16
Sub-basin area
482,7km²
Upstream area
137 513,6km²
Discharge
3 348,73m³/s
Mean elev.
10m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sông Phó Đáy1895 km²
- Bassin de Sông Hồng68 km²
21 dept-equivalent regions (GADM L2)
- 108.7 km²22.6% of basin
- 57.4 km²11.9% of basin
- 51.7 km²10.7% of basin
- Khoái ChâuHưng Yên · Vietnam41.7 km²8.7% of basin
- 39.9 km²8.3% of basin
- 27.4 km²5.7% of basin
- 27.0 km²5.6% of basin
- 25.8 km²5.4% of basin
13 moreFull L2 list
- Văn Giang21.6 km² · 4.5%
- Hoàng Mai15.3 km² · 3.2%
- Gia Lâm13.9 km² · 2.9%
- Phú Xuyên11.7 km² · 2.4%
- Thanh Trì10.7 km² · 2.2%
- Hoài Đức8.9 km² · 1.9%
- Hai Bà Trưng6.7 km² · 1.4%
- Ba Đình6.1 km² · 1.3%
- Hoàn Kiếm4.8 km² · 1.0%
- Nam Từ Liêm0.6 km² · 0.1%
- Phúc Thọ0.6 km² · 0.1%
- Đống Đa0.5 km² · 0.1%
- Cầu Giấy0.2 km² · 0.1%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
680 distinct species · 10 091 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 7.5%, filtre Serrano α=0.2). 4 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°
23,8°C
Annual rain
1 683mm
Moisture idx (CMI)
0,23
Runoff
896mm/an
PET
1 304mm
AET
1 073mm
Mean slope
0,2°
Water table
12cm
Forest
0%
Crops
77%
Urban
79%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)