HydroBASINS lev08 watershed · #4080851690
Bassin de अरुण नदी
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 : Koshi, Sagarmatha
Sub-basin area
416,3km²
Upstream area
27 826km²
Discharge
528,55m³/s
Mean elev.
1 539m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de अरुण नदी1127 km²
- Bassin de Lunsun Khola356 km²
2 dept-equivalent regions (GADM L2)
- 409.8 km²98.6% of basin
- 5.8 km²1.4% of basin
1 intersecting protected areas
Makalu-Barun - Buffer Zone
IUCN VINational Park - Buffer Zone
1.48 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
308 distinct species · 562 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 अरुण नदी : 29 espèces reliées par 35 interactions GloBI sur 5 types (connectance 6.2%, 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°
17,3°C
Annual rain
1 848mm
Moisture idx (CMI)
0,28
Runoff
1 179mm/an
PET
1 240mm
AET
945mm
Mean slope
24,2°
Water table
825cm
Forest
62%
Crops
13%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)