HydroBASINS lev08 watershed · #4080752230
Bassin de Yamuna
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 : Dehradun, Saharanpur, Sirmaur
Sub-basin area
51,7km²
Upstream area
10 964,6km²
Discharge
200,5m³/s
Mean elev.
474m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tons Nadi679 km²
- Bassin de Yamuna8 km²
3 dept-equivalent regions (GADM L2)
- 26.1 km²50.6% of basin
- 22.7 km²44.0% of basin
- Saharanpur2.8 km²5.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
155 distinct species · 776 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Yamuna : 18 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 3 types (connectance 10.8%, filtre Serrano α=0.2). 12 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°
23,0°C
Annual rain
2 005mm
Moisture idx (CMI)
0,22
Runoff
544mm/an
PET
1 565mm
AET
1 025mm
Mean slope
5,1°
Water table
367cm
Forest
40%
Crops
44%
Urban
35%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)