HydroBASINS lev08 watershed · #4080892310
Bassin de Brahmaputra
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 : Bongaigaon, Dhubri, Goalpara, North Garo Hills, West Garo Hills
Sub-basin area
1 611,1km²
Upstream area
464 907,2km²
Discharge
20 142,74m³/s
Mean elev.
98m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Champamati1259 km²
- Bassin de Brahmaputra164 km²
5 dept-equivalent regions (GADM L2)
- 624.5 km²38.8% of basin
- 595.4 km²37.0% of basin
- 328.3 km²20.4% of basin
- 53.8 km²3.3% of basin
- 6.0 km²0.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
343 distinct species · 3 094 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 Brahmaputra : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2). 8 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°
24,3°C
Annual rain
2 738mm
Moisture idx (CMI)
0,51
Runoff
1 068mm/an
PET
1 343mm
AET
1 069mm
Mean slope
2,8°
Water table
127cm
Forest
14%
Crops
59%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)