HydroBASINS lev08 watershed · #4080763140
Bassin de Randi Nadi
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 2 administrative regions : Garhwal, Tehri Garhwal
Sub-basin area
191,9km²
Upstream area
18 955,6km²
Discharge
492,45m³/s
Mean elev.
1 282m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Alaknanda816 km²
- Bassin de Bhagirathi River358 km²
2 dept-equivalent regions (GADM L2)
- 158.5 km²82.7% of basin
- 33.2 km²17.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
204 distinct species · 1 158 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Randi Nadi : 27 espèces reliées par 46 interactions GloBI sur 5 types (connectance 7.7%, filtre Serrano α=0.2). 8 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°
17,9°C
Annual rain
1 628mm
Moisture idx (CMI)
0,22
Runoff
512mm/an
PET
1 249mm
AET
894mm
Mean slope
23,0°
Water table
805cm
Forest
27%
Crops
26%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)