HydroBASINS lev08 watershed · #4081149100
Bassin de Kattalai High Level Channel
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 4 administrative regions : Dindigul, Karur, Namakkal, Tiruchirappalli
Sub-basin area
1 198,2km²
Upstream area
70 447,1km²
Discharge
311,15m³/s
Mean elev.
145m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de North Bank Canal697 km²
- Bassin de Kaveri417 km²
4 dept-equivalent regions (GADM L2)
- Karur701.7 km²58.8% of basin
- 461.1 km²38.6% of basin
- Namakkal30.6 km²2.6% of basin
- Dindigul0.1 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
284 distinct species · 5 166 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Kattalai High Level Channel : 23 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 3 types (connectance 8.7%, 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°
28,6°C
Annual rain
694mm
Moisture idx (CMI)
-0,61
Runoff
53mm/an
PET
1 797mm
AET
585mm
Mean slope
1,1°
Water table
128cm
Forest
26%
Crops
60%
Urban
8%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)