Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Avlamè
Benin
AwTropical, savannah(100 %)
Species observed
169
Observations
337
Area
71,8km²
Ecological tissue
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Calcul du tissu écologique de cette entité.
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Species present
169 distinct species · 337 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,2°C
Annual rain
1 062mm
Warmest m°
35,2°C
Coldest m°
22,3°C
Elevation: 51 m on average (min 23 m, max 88 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,2°C
Annual rain
1 062mm
Warmest month
35,2°C
Coldest month
22,3°C
Mean alt.
51m
Min
23m
Max
88m
Std. dev.
14m
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
16,5g/kg
Clay
17,7%
Sand
63,3%
Silt
19,1%
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
27,7g/kg
Clay
19,4%
Sand
60,1%
Silt
20,5%
5–15 cm
pH H₂O
6,2
Org. C
13,6g/kg
Clay
15,8%
Sand
65,4%
Silt
18,8%
15–30 cm
pH H₂O
6,2
Org. C
8,2g/kg
Clay
17,8%
Sand
64,3%
Silt
17,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest18.6%
Crops36.8%
Built-up0.7%
Bare soil0.1%
Other (grassland, water…)43.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
1
Max drainage
2 064km²
Discharge in basins
0,6m³/s
Mean precip.
1 090mm/an
Mean T°
27,5°C
Moisture idx
-0,35
Mean runoff
272mm/an
Mean elev. (basins)
72m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,0nW
Built-up
74,4%
Pesticides
13,8kg/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