HydroBASINS lev08 watershed · #5080003090
Bassin de Sei Besitang
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 : Aceh Tamiang, Gayo Lues, Langkat
Sub-basin area
716,4km²
Upstream area
716,7km²
Discharge
40,13m³/s
Mean elev.
276m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 703.1 km²98.6% of basin
- 5.7 km²0.8% of basin
- 4.0 km²0.6% of basin
3 intersecting protected areas
Gunung Leuser
IUCN IINational Park
393.16 km² overlap
Tropical Rainforest Heritage of Sumatra
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
390.32 km² overlap
Gunung Leuser National Park
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
384.26 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
492 distinct species · 1 120 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Sei Besitang : 14 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 2 types (connectance 10.5%, 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°
25,6°C
Annual rain
2 530mm
Moisture idx (CMI)
0,35
Runoff
1 742mm/an
PET
1 654mm
AET
1 616mm
Mean slope
7,4°
Water table
241cm
Forest
59%
Crops
49%
Urban
5%
Protected
64%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)