HydroBASINS lev08 watershed · #4080842810
Bassin de East Rapti River
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 1 administrative regions : Narayani
Sub-basin area
419,4km²
Upstream area
1 820,1km²
Discharge
77,68m³/s
Mean elev.
362m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Lothar Khola187 km²
- Bassin de East Rapti River109 km²
3 intersecting protected areas
Chitwan
IUCN IINational Park
274.34 km² overlap
Chitwan National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
257.64 km² overlap
Chitwan - Buffer Zone
IUCN VINational Park - Buffer Zone
64.74 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
753 distinct species · 53 319 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 East Rapti River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 6.1%, filtre Serrano α=0.2). 5 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°
23,3°C
Annual rain
1 853mm
Moisture idx (CMI)
0,17
Runoff
1 431mm/an
PET
1 531mm
AET
980mm
Mean slope
5,1°
Water table
202cm
Forest
69%
Crops
12%
Urban
4%
Protected
81%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)