HydroBASINS lev08 watershed · #4081084750
Bassin de แม่น้ำเลย
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 8 administrative regions : Dan Sai, K. Nong Hin, Lom Kao, Nam Nao, Phu Kradung +3
Sub-basin area
1 300,9km²
Upstream area
1 301km²
Discharge
14,02m³/s
Mean elev.
567m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- 475.4 km²36.7% of basin
- 457.0 km²35.2% of basin
- 210.4 km²16.2% of basin
- Nam Nao106.6 km²8.2% of basin
- 38.5 km²3.0% of basin
- Lom Kao7.8 km²0.6% of basin
- 0.7 km²0.1% of basin
- 0.1 km²0.0% of basin
3 intersecting protected areas
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 100 distinct species · 6 931 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 แม่น้ำเลย : 10 espèces reliées par 8 interactions GloBI sur 3 types (connectance 14.5%, 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°
24,5°C
Annual rain
1 155mm
Moisture idx (CMI)
-0,32
Runoff
349mm/an
PET
1 710mm
AET
959mm
Mean slope
7,3°
Water table
306cm
Forest
31%
Crops
37%
Urban
1%
Protected
40%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)