HydroBASINS lev08 watershed · #4080595110
Bassin de 大夏河
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 3 administrative regions : Gannan Tibetan, Haidong, Linxia Hui
Sub-basin area
1 363,5km²
Upstream area
6 454,2km²
Discharge
19,09m³/s
Mean elev.
2 796m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 麻历河1142 km²
- Bassin de 大夏河184 km²
3 dept-equivalent regions (GADM L2)
- 868.9 km²63.7% of basin
- 494.6 km²36.3% of basin
- 0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
208 distinct species · 357 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 大夏河 : 23 espèces reliées par 50 interactions GloBI sur 5 types (connectance 9.5%, filtre Serrano α=0.2). 10 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°
3,1°C
Annual rain
544mm
Moisture idx (CMI)
-0,33
Runoff
68mm/an
PET
843mm
AET
466mm
Mean slope
17,9°
Water table
638cm
Forest
37%
Crops
27%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)