HydroBASINS lev08 watershed · #4080914410
Bassin de Phalgu
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 2 administrative regions : Nalanda, Patna
Sub-basin area
351,8km²
Upstream area
6 488,4km²
Discharge
90,18m³/s
Mean elev.
44m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de mohana river1751 km²
- Bassin de Phalgu41 km²
2 dept-equivalent regions (GADM L2)
- 332.8 km²94.8% of basin
- 18.3 km²5.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
40 distinct species · 53 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Phalgu : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 19 interactions GloBI sur 3 types (connectance 6.9%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
26,1°C
Annual rain
962mm
Moisture idx (CMI)
-0,40
Runoff
407mm/an
PET
1 614mm
AET
772mm
Mean slope
0,0°
Water table
5cm
Forest
0%
Crops
84%
Urban
12%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)