HydroBASINS lev08 watershed · #4080989340
Bassin de 南北河
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 across 2 countries : Hoàng Su Phì, Vị Xuyên, Wenshan Zhuang and Miao, Xín Mần
Sub-basin area
302,4km²
Upstream area
302,5km²
Discharge
11,96m³/s
Mean elev.
1 145m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 177.3 km²58.8% of basin
- Hoàng Su PhìHà Giang · Vietnam90.0 km²29.8% of basin
- Xín MầnHà Giang · Vietnam34.4 km²11.4% of basin
- Vị XuyênHà Giang · Vietnam0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
14 distinct species · 15 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 南北河 : 4 espèces reliées par 2 interactions GloBI sur 2 types (connectance 33.3%, 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°
18,2°C
Annual rain
1 593mm
Moisture idx (CMI)
0,26
Runoff
1 229mm/an
PET
1 172mm
AET
975mm
Mean slope
20,6°
Water table
645cm
Forest
8%
Crops
31%
Urban
7%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)