HydroBASINS lev08 watershed · #4080860070
Bassin de Sanwan
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 : Alwar, Dausa, Jaipur
Sub-basin area
1 381,2km²
Upstream area
1 381,2km²
Discharge
1,99m³/s
Mean elev.
403m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 749.8 km²54.4% of basin
- 333.0 km²24.2% of basin
- 296.0 km²21.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
411 distinct species · 11 859 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Sanwan : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 3 types (connectance 8.4%, filtre Serrano α=0.2). 9 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°
24,9°C
Annual rain
646mm
Moisture idx (CMI)
-0,63
Runoff
79mm/an
PET
1 751mm
AET
546mm
Mean slope
5,0°
Water table
316cm
Forest
0%
Crops
65%
Urban
5%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)