HydroBASINS lev08 watershed · #4080868750
Bassin de Rapti
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 4 administrative regions : Gorakhpur, Maharajganj, Sant Kabir Nagar, Siddharth Nagar
Sub-basin area
576,7km²
Upstream area
18 799,7km²
Discharge
448,99m³/s
Mean elev.
80m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rapti River189 km²
- Bassin · #408085962093 km²
4 dept-equivalent regions (GADM L2)
- Gorakhpur284.9 km²49.5% of basin
- 203.5 km²35.3% of basin
- 74.7 km²13.0% of basin
- 12.6 km²2.2% of basin
1 intersecting protected areas
Bakhira Wildlife Sanctuary
IUCN IVWetland of International Importance (Ramsar Site)
28.94 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
153 distinct species · 450 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Rapti : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 10 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°
25,2°C
Annual rain
1 253mm
Moisture idx (CMI)
-0,23
Runoff
543mm/an
PET
1 623mm
AET
846mm
Mean slope
0,1°
Water table
12cm
Forest
1%
Crops
97%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)