HydroBASINS lev08 watershed · #4080790140
Bassin de 大渡河
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 : Leshan, Liangshan Yi, Meishan, Ya'an
Sub-basin area
962,2km²
Upstream area
73 280,7km²
Discharge
969,52m³/s
Mean elev.
1 837m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 嘎嘎以达河394 km²
- Bassin de 大渡河265 km²
4 dept-equivalent regions (GADM L2)
- 626.4 km²65.2% of basin
- 207.3 km²21.6% of basin
- 116.6 km²12.1% of basin
- 10.7 km²1.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
247 distinct species · 821 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 大渡河 : 23 espèces reliées par 43 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 9 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°
11,8°C
Annual rain
1 179mm
Moisture idx (CMI)
0,16
Runoff
757mm/an
PET
972mm
AET
801mm
Mean slope
26,2°
Water table
783cm
Forest
47%
Crops
19%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)