HydroBASINS lev08 watershed · #4080845080
Bassin de 娘姆江曲 Nyamjang Chu
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 6 administrative regions across 3 countries : Bumdeling, Khamdang, Shannan, Tawang, Toetsho +1
Sub-basin area
787,9km²
Upstream area
3 085,8km²
Discharge
17,79m³/s
Mean elev.
3 440m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 洞巴港曲309 km²
- Bassin de 娘姆江曲297 km²
6 dept-equivalent regions (GADM L2)
- Tawang688.8 km²87.6% of basin
- 92.4 km²11.8% of basin
- 4.7 km²0.6% of basin
- 0.4 km²0.0% of basin
- 0.2 km²0.0% of basin
- 0.1 km²0.0% of basin
2 intersecting protected areas
Bumdeling Wildlife Sanctuary
IUCN IVWildlife Sanctuary
3.61 km² overlap
Biological Corridor 9
IUCN VIBiological Corridor
1.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
368 distinct species · 3 910 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 娘姆江曲 Nyamjang Chu : 12 espèces reliées par 12 interactions GloBI sur 2 types (connectance 15.4%, 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°
7,7°C
Annual rain
793mm
Moisture idx (CMI)
-0,28
Runoff
371mm/an
PET
1 016mm
AET
592mm
Mean slope
29,0°
Water table
1 134cm
Forest
42%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)