HydroBASINS lev08 watershed · #4080909660
Bassin de Punpun
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 : Arwal, Aurangabad, Gaya, Jehanabad, Patna
Sub-basin area
2 040,1km²
Upstream area
5 074,7km²
Discharge
72,42m³/s
Mean elev.
81m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Madad1286 km²
- Bassin de Punpun569 km²
5 dept-equivalent regions (GADM L2)
- 578.9 km²28.4% of basin
- 524.8 km²25.8% of basin
- 479.6 km²23.6% of basin
- 438.8 km²21.6% of basin
- 13.7 km²0.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
120 distinct species · 323 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Punpun : 31 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 4 types (connectance 6.2%, 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°
26,5°C
Annual rain
955mm
Moisture idx (CMI)
-0,42
Runoff
407mm/an
PET
1 654mm
AET
751mm
Mean slope
0,0°
Water table
6cm
Forest
0%
Crops
77%
Urban
9%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)