Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Tohouè
Benin
AwTropical, savannah(100 %)
Species observed
1 111
Observations
4 323
Area
62,9km²
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Species present
1 111 distinct species · 4 323 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,6°C
Annual rain
1 274mm
Warmest m°
29,7°C
Coldest m°
23,6°C
Elevation: 4 m on average (min -0 m, max 8 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,6°C
Annual rain
1 274mm
Warmest month
29,7°C
Coldest month
23,6°C
Mean alt.
4m
Min
-0m
Max
8m
Std. dev.
2m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,5
Org. C
31,7g/kg
Clay
25,2%
Sand
56,2%
Silt
18,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Sèmè-Kpodji
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,5
Org. C
43,9g/kg
Clay
24,8%
Sand
56,3%
Silt
19,0%
5–15 cm
pH H₂O
5,5
Org. C
31,8g/kg
Clay
25,8%
Sand
55,4%
Silt
18,8%
15–30 cm
pH H₂O
5,5
Org. C
19,3g/kg
Clay
25,1%
Sand
56,8%
Silt
18,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest15.3%
Crops7.8%
Built-up5.4%
Bare soil0.9%
Other (grassland, water…)70.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Basins crossed
4
Max stream order
4
Max drainage
7 334km²
Discharge in basins
10,0m³/s
Mean precip.
1 347mm/an
Mean T°
27,3°C
Moisture idx
-0,04
Mean runoff
537mm/an
Mean elev. (basins)
7m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
8hab/km²
Night light
1,3nW
Built-up
538,7%
Pesticides
12,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1🌊 Marine · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN