HydroBASINS lev08 watershed · #4080950560
Bassin de বড়াল নদী
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 : Bogra, Natore, Pabna, Rajshahi, Sirajganj
Sub-basin area
2 570,4km²
Upstream area
14 677km²
Discharge
502,99m³/s
Mean elev.
15m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de নাগর নদী1576 km²
- Bassin de Gumani River882 km²
5 dept-equivalent regions (GADM L2)
- NatoreRajshahi · Bangladesh969.1 km²37.8% of basin
- SirajganjRajshahi · Bangladesh654.9 km²25.5% of basin
- PabnaRajshahi · Bangladesh446.0 km²17.4% of basin
- BograRajshahi · Bangladesh330.9 km²12.9% of basin
- RajshahiRajshahi · Bangladesh163.8 km²6.4% of basin
1 intersecting protected areas
Silonda-Nagdemra
IUCN VIWildlife (Dolphin) Sanctuary
0.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
244 distinct species · 3 758 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 বড়াল নদী : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 3 types (connectance 10.6%, 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°
25,8°C
Annual rain
1 643mm
Moisture idx (CMI)
0,07
Runoff
1 082mm/an
PET
1 526mm
AET
1 014mm
Mean slope
0,1°
Water table
5cm
Forest
1%
Crops
85%
Urban
14%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)