HydroBASINS lev08 watershed · #4080887460
Bassin de Kolong
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 3 administrative regions : Karbi Anglong, Morigaon, Nagaon
Sub-basin area
403,2km²
Upstream area
16 322,5km²
Discharge
1 341,8m³/s
Mean elev.
94m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Kolong1283 km²
- Bassin de Kopili32 km²
3 dept-equivalent regions (GADM L2)
- 226.0 km²56.2% of basin
- 132.5 km²32.9% of basin
- 43.9 km²10.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
342 distinct species · 4 799 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Kolong : 36 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 4 types (connectance 5.9%, filtre Serrano α=0.2). 6 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°
24,3°C
Annual rain
1 628mm
Moisture idx (CMI)
0,11
Runoff
2 468mm/an
PET
1 445mm
AET
1 064mm
Mean slope
1,9°
Water table
77cm
Forest
7%
Crops
58%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)