HydroBASINS lev08 watershed · #4080765920
Bassin de 学绒藏布
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 3 administrative regions : Lhasa, Nagchu, Nyingtri
Sub-basin area
2 038km²
Upstream area
2 038km²
Discharge
14,86m³/s
Mean elev.
4 984m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 2017.6 km²99.1% of basin
- 9.3 km²0.5% of basin
- 8.9 km²0.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
157 distinct species · 288 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 学绒藏布 : 5 espèces reliées par 11 interactions GloBI sur 2 types (connectance 30.6%, 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°
-1,3°C
Annual rain
304mm
Moisture idx (CMI)
-0,57
Runoff
241mm/an
PET
708mm
AET
276mm
Mean slope
22,3°
Water table
826cm
Forest
2%
Crops
1%
Urban
0%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)