HydroBASINS lev08 watershed · #4080028600
Bassin · #4080028600
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 : Kancheepuram, Viluppuram
Sub-basin area
26,7km²
Upstream area
26,8km²
Discharge
0,35m³/s
Mean elev.
7m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 21.7 km²81.6% of basin
- Viluppuram0.1 km²0.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
127 distinct species · 758 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 · #4080028600 : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 3 types (connectance 11.9%, filtre Serrano α=0.2). 5 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°
28,4°C
Annual rain
1 133mm
Moisture idx (CMI)
-0,32
Runoff
410mm/an
PET
1 661mm
AET
868mm
Mean slope
0,5°
Water table
62cm
Forest
30%
Crops
51%
Urban
35%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)