HydroBASINS lev08 watershed · #4080856840
Bassin de Subansiri
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 5 administrative regions across 2 countries : Dhemaji, Lakhimpur, Lower Subansiri, Papum Pare, West Siang
Sub-basin area
925,1km²
Upstream area
27 008,2km²
Discharge
2 185,82m³/s
Mean elev.
320m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sipu247 km²
- Bassin de Subansiri147 km²
5 dept-equivalent regions (GADM L2)
- 537.8 km²58.2% of basin
- 162.6 km²17.6% of basin
- 124.8 km²13.5% of basin
- 96.8 km²10.5% of basin
- 1.5 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
395 distinct species · 5 600 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 Subansiri : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 3 types (connectance 6.8%, filtre Serrano α=0.2). 7 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°
22,7°C
Annual rain
3 087mm
Moisture idx (CMI)
0,55
Runoff
4 474mm/an
PET
1 361mm
AET
1 195mm
Mean slope
8,6°
Water table
247cm
Forest
16%
Crops
20%
Urban
4%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)