Reserve aquatique du Grand Sud du Gabon
IUCN Not ReportedAquatic reserve · 2017
27 520 km²
Department · GAB
Basse Banio
Gabon
AwTropical, savannah(100 %)
Species observed
1 247
Observations
9 828
Area
5 700,9km²
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Species present
1 247 distinct species · 9 828 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,3°C
Annual rain
1 937mm
Warmest m°
28,9°C
Coldest m°
19,1°C
Elevation: 128 m on average (min -110 m, max 817 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
24,3°C
Annual rain
1 937mm
Warmest month
28,9°C
Coldest month
19,1°C
Mean alt.
128m
Min
-110m
Max
817m
Std. dev.
143m
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
5,1
Org. C
33,1g/kg
Clay
31,1%
Sand
46,2%
Silt
22,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,1
Org. C
44,0g/kg
Clay
30,2%
Sand
47,0%
Silt
22,7%
5–15 cm
pH H₂O
5,1
Org. C
32,8g/kg
Clay
30,9%
Sand
46,3%
Silt
22,8%
15–30 cm
pH H₂O
5,1
Org. C
22,4g/kg
Clay
32,3%
Sand
45,1%
Silt
22,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest85.9%
Crops0.5%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)13.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology12 basins · 5 lakes · 7 rivers
Hydrology metrics for this exact territory
Stream length here
270,3km
Lake surface here
49,68km²
Basins crossed
12
Max stream order
6
Max drainage
25 075km²
Discharge in basins
1 113,1m³/s
Mean precip.
1 655mm/an
Mean T°
24,7°C
Moisture idx
0,06
Mean runoff
921mm/an
Mean elev. (basins)
163m
Watersheds crossing here
- Bassin de Loutsibisub-area2 535,3 km²overlap1828.76 km²32%
- Bassin de Maambisub-area1 334,4 km²overlap1120.32 km²20%
- Bassin de Dounvousub-area980,5 km²overlap888.45 km²16%
- Bassin de Nyangasub-area1 203,7 km²overlap778.73 km²14%
- Bassin de Diboundousub-area1 108,1 km²overlap603.23 km²11%
- Basin #20430sub-area393,7 km²overlap191.26 km²3%
- Bassin de Nyangasub-area147,3 km²overlap146.65 km²3%
- Basin #20320sub-area70,8 km²overlap62.41 km²1%
- Basin #00810sub-area475,3 km²overlap26.80 km²0%
Lakes (5, top by area)
Rivers / streams (7, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
1,5%
Pesticides
18,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas11
IUCN Not Reported · 7IUCN II · 3IUCN VI · 1🌊 Marine · 11
Parc National Conkouati-Douli
IUCN IINational Park · 1999
7 714 km²
Conkouati-Douli
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2007
5 134 km²
Parc national de Moukalaba - Doudou
IUCN IINational park · 2002
4 472 km²
Setté Cama
IUCN VIWetland of International Importance (Ramsar Site) · 1986
2 398 km²
Domaine de chasse de Sette-Cama
IUCN Not ReportedHunting Area · 1966
2 390 km²
Complete list11 protected areas
- Reserve aquatique du Grand Sud du GabonAquatic reserveIUCN Not Reported201727 520 km²
- Parc National Conkouati-DouliNational ParkIUCN II19997 714 km²
- Conkouati-DouliWetland of International Importance (Ramsar Site)IUCN Not Reported20075 134 km²
- Parc national de Moukalaba - DoudouNational parkIUCN II20024 472 km²
- Setté CamaWetland of International Importance (Ramsar Site)IUCN VI19862 398 km²
- Domaine de chasse de Sette-CamaHunting AreaIUCN Not Reported19662 390 km²
- Parc national de MayumbaNational parkIUCN II2002905 km²
- Reserve aquatique de GambaAquatic reserveIUCN Not Reported2017107 km²
- Reserve de faune de la Plaine OuangaFaunal reserveIUCN Not Reported196682 km²
- Parc marin de l'embouchure de la NyangaMarine parkIUCN Not Reported201768 km²
- Parc marin de l'embouchure de la BanioMarine parkIUCN Not Reported201739 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN