HydroBASINS lev08 watershed · #4081150940
Bassin de Sông Tiền
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 6 administrative regions : Chợ Mới, Hồng Ngự, Hồng Ngự (Thị xã), Phú Tân, Tam Nông +1
Sub-basin area
350,6km²
Upstream area
758 932,9km²
Discharge
14 916,34m³/s
Mean elev.
3m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sông Tiền1278 km²
- Bassin de Sông Tiền572 km²
6 dept-equivalent regions (GADM L2)
- 120.6 km²34.6% of basin
- 83.6 km²24.0% of basin
- 60.2 km²17.2% of basin
- 39.7 km²11.4% of basin
- 29.8 km²8.5% of basin
- 15.2 km²4.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
16 distinct species · 29 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 Tiền : 7 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, 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°
27,5°C
Annual rain
1 388mm
Moisture idx (CMI)
-0,08
Runoff
722mm/an
PET
1 506mm
AET
1 031mm
Mean slope
0,2°
Water table
5cm
Forest
0%
Crops
73%
Urban
40%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)