HydroBASINS lev08 watershed · #4080015230
Bassin · #4080015230
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 7 administrative regions : Cửa Lò, Diễn Châu, Hưng Nguyên, Nam Đàn, Nghi Lộc +2
Sub-basin area
334,1km²
Upstream area
334,1km²
Discharge
11,97m³/s
Mean elev.
28m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- 246.9 km²74.1% of basin
- 47.6 km²14.3% of basin
- 30.2 km²9.1% of basin
- 5.2 km²1.6% of basin
- 1.9 km²0.6% of basin
- 1.0 km²0.3% of basin
- 0.2 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
19 distinct species · 27 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 · #4080015230 : 13 espèces reliées par 9 interactions GloBI sur 3 types (connectance 11.5%, filtre Serrano α=0.2).
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 589mm
Moisture idx (CMI)
0,16
Runoff
1 116mm/an
PET
1 331mm
AET
1 050mm
Mean slope
3,2°
Water table
143cm
Forest
1%
Crops
52%
Urban
24%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)