HydroBASINS lev08 watershed · #4080783510
Bassin de Sarju
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 : Champawat, Pithoragarh
Sub-basin area
231,1km²
Upstream area
4 067,2km²
Discharge
110,35m³/s
Mean elev.
1 309m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ramganga1350 km²
- Bassin de Sarju10 km²
2 dept-equivalent regions (GADM L2)
- Pithoragarh117.8 km²51.0% of basin
- Champawat113.1 km²49.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
178 distinct species · 820 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Sarju : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 4 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 614mm
Moisture idx (CMI)
0,19
Runoff
796mm/an
PET
1 313mm
AET
968mm
Mean slope
24,2°
Water table
764cm
Forest
33%
Crops
23%
Urban
5%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)