HydroBASINS lev08 watershed · #4080692090
Bassin de 小姓沟
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 1 administrative regions : Ngawa Tibetan and Qiang
Sub-basin area
460,4km²
Upstream area
1 130,5km²
Discharge
14,28m³/s
Mean elev.
3 506m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 小姓沟476 km²
- Bassin de 小姓沟194 km²
1 dept-equivalent regions (GADM L2)
- 460.1 km²100.0% of basin
1 intersecting protected areas
Huang Long
IUCN VIScenic Area
4.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
31 distinct species · 37 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
3,6°C
Annual rain
814mm
Moisture idx (CMI)
-0,08
Runoff
409mm/an
PET
894mm
AET
680mm
Mean slope
22,8°
Water table
701cm
Forest
82%
Crops
2%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)