HydroBASINS lev08 watershed · #4080959440
Bassin de Tuivai
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 : Aizawl, Champhai, Churachandpur
Sub-basin area
575,5km²
Upstream area
3 004,9km²
Discharge
91,57m³/s
Mean elev.
918m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tuivai973 km²
- Bassin de Tuisa777 km²
3 dept-equivalent regions (GADM L2)
- 238.9 km²41.6% of basin
- 222.1 km²38.7% of basin
- 113.2 km²19.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
34 distinct species · 55 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 Tuivai : 8 espèces reliées par 8 interactions GloBI sur 3 types (connectance 17.8%, filtre Serrano α=0.2). 2 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°
20,7°C
Annual rain
1 733mm
Moisture idx (CMI)
0,24
Runoff
1 057mm/an
PET
1 296mm
AET
1 015mm
Mean slope
21,3°
Water table
717cm
Forest
7%
Crops
11%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)