HydroBASINS lev08 watershed · #4080575380
Bassin de 关川河
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 : Baiyin, Dingxi, Lanzhou
Sub-basin area
1 486,6km²
Upstream area
3 528km²
Discharge
3,57m³/s
Mean elev.
1 963m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 关川河335 km²
- Bassin de 关川河281 km²
3 dept-equivalent regions (GADM L2)
- 767.5 km²51.6% of basin
- 607.6 km²40.9% of basin
- 111.7 km²7.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
19 distinct species · 21 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 5 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 关川河 : 5 espèces reliées par 4 interactions GloBI sur 1 type (connectance 40.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
7,2°C
Annual rain
353mm
Moisture idx (CMI)
-0,62
Runoff
8mm/an
PET
946mm
AET
309mm
Mean slope
12,5°
Water table
758cm
Forest
0%
Crops
48%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)