HydroBASINS lev08 watershed · #4080759500
Bassin de 拉萨河
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 2 administrative regions : Lhasa, Nagchu
Sub-basin area
1 333,6km²
Upstream area
12 065,3km²
Discharge
78,47m³/s
Mean elev.
4 897m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 桑曲2219 km²
- Bassin de 拉萨河1402 km²
2 dept-equivalent regions (GADM L2)
- 1324.0 km²99.4% of basin
- 8.3 km²0.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
320 distinct species · 741 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 拉萨河 : 17 espèces reliées par 26 interactions GloBI sur 2 types (connectance 12.4%, 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°
-1,0°C
Annual rain
306mm
Moisture idx (CMI)
-0,57
Runoff
117mm/an
PET
721mm
AET
277mm
Mean slope
23,8°
Water table
872cm
Forest
0%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)