Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Akiza
Benin
AwTropical, savannah(100 %)
Species observed
379
Observations
1 950
Area
114,9km²
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
379 distinct species · 1 950 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,9°C
Annual rain
1 074mm
Warmest m°
34,7°C
Coldest m°
22,1°C
Elevation: 59 m on average (min 28 m, max 97 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,9°C
Annual rain
1 074mm
Warmest month
34,7°C
Coldest month
22,1°C
Mean alt.
59m
Min
28m
Max
97m
Std. dev.
16m
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
6,2
Org. C
20,1g/kg
Clay
29,9%
Sand
47,7%
Silt
22,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Zogbodomey
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,2
Org. C
32,1g/kg
Clay
30,5%
Sand
46,9%
Silt
22,6%
5–15 cm
pH H₂O
6,2
Org. C
17,6g/kg
Clay
30,0%
Sand
47,9%
Silt
22,1%
15–30 cm
pH H₂O
6,1
Org. C
10,4g/kg
Clay
29,2%
Sand
48,4%
Silt
22,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest24.1%
Crops35.5%
Built-up0.7%
Bare soil0.0%
Other (grassland, water…)39.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
12,6km
Basins crossed
2
Max stream order
4
Max drainage
3 664km²
Discharge in basins
1,0m³/s
Mean precip.
1 043mm/an
Mean T°
27,3°C
Moisture idx
-0,39
Mean runoff
265mm/an
Mean elev. (basins)
96m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,0nW
Built-up
69,3%
Pesticides
13,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 2🌊 Marine · 2
Basse Vallée du Couffo, Lagune Côtiere, Chenal Aho, Lac Ahémé
IUCN VWetland of International Importance (Ramsar Site) · 2000
5 245 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN