Bas Ogooue
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2009
13 637 km²
Department · GAB
Komo
Gabon
AmTropical, monsoon(62 %)
Species observed
3 220
Observations
42 123
Area
9 519km²
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Species present
3 220 distinct species · 42 123 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,6°C
Annual rain
2 415mm
Warmest m°
29,8°C
Coldest m°
20,5°C
Elevation: 210 m on average (min 2 m, max 743 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
24,6°C
Annual rain
2 415mm
Warmest month
29,8°C
Coldest month
20,5°C
Mean alt.
210m
Min
2m
Max
743m
Std. dev.
212m
Köppen-Geiger (dominant)
AmTropical, monsoon(62 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
4,8
Org. C
38,3g/kg
Clay
31,8%
Sand
46,1%
Silt
22,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,8
Org. C
48,8g/kg
Clay
31,1%
Sand
46,7%
Silt
22,2%
5–15 cm
pH H₂O
4,8
Org. C
38,4g/kg
Clay
31,0%
Sand
46,7%
Silt
22,3%
15–30 cm
pH H₂O
4,8
Org. C
27,8g/kg
Clay
33,3%
Sand
45,0%
Silt
21,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest90.5%
Crops0.2%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)9.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology32 basins · 1 lakes · 16 rivers
Hydrology metrics for this exact territory
Stream length here
868,0km
Lake surface here
3,96km²
Basins crossed
32
Max stream order
5
Max drainage
8 204km²
Discharge in basins
1 236,2m³/s
Mean precip.
2 279mm/an
Mean T°
24,9°C
Moisture idx
0,33
Mean runoff
1 166mm/an
Mean elev. (basins)
250m
Watersheds crossing here
- Bassin de Komosub-area1 971,9 km²overlap1211.90 km²13%
- Bassin de Bokouésub-area1 004,6 km²overlap1000.10 km²11%
- Bassin de Abangasub-area3 605,4 km²overlap887.19 km²9%
- Bassin de Mbésub-area1 993,7 km²overlap651.09 km²7%
- Bassin de Agoulasub-area598,4 km²overlap586.58 km²6%
- Bassin de Magasub-area615,8 km²overlap578.48 km²6%
- Basin #37330sub-area506,9 km²overlap504.61 km²5%
- Basin #45250sub-area721 km²overlap414.03 km²4%
- Bassin de Komosub-area390,4 km²overlap388.69 km²4%
23 more basinssorted by overlap
- Bassin de Rambouèsub-area379,4 km²overlap357.50 km²4%
- Bassin de Rambouèsub-area377,4 km²overlap354.05 km²4%
- Bassin de Komosub-area338,4 km²overlap336.91 km²4%
- Basin #38390sub-area321,5 km²overlap320.10 km²3%
- Bassin de Rambouèsub-area291,2 km²overlap289.90 km²3%
- Basin #45160sub-area256,8 km²overlap255.33 km²3%
- Bassin de Noouésub-area264,6 km²overlap249.61 km²3%
- Bassin de Avebesub-area350,8 km²overlap210.75 km²2%
- Bassin de Assangosub-area396,5 km²overlap174.94 km²2%
- Bassin de Abangasub-area590 km²overlap174.45 km²2%
- Bassin de Rambouèsub-area151,4 km²overlap150.70 km²2%
- Basin #49510sub-area125,8 km²overlap123.38 km²1%
- Bassin de Abangasub-area320,9 km²overlap77.40 km²1%
- Bassin de Bilagonesub-area1 400,4 km²overlap53.21 km²1%
- Bassin de Mbinésub-area752,7 km²overlap43.84 km²0%
- Bassin de Noyasub-area3 024,9 km²overlap40.21 km²0%
- Basin #20880sub-area42,7 km²overlap40.08 km²0%
- Bassin de Rembo Azingosub-area720 km²overlap21.44 km²0%
- Bassin de Rambouèsub-area15,7 km²overlap15.59 km²0%
- Basin #57430sub-area303,5 km²overlap4.17 km²0%
- Bassin de Rèmbo Ouangosub-area992,4 km²overlap1.02 km²0%
- Bassin de Komosub-area0,2 km²overlap0.21 km²0%
- Basin #45350sub-area3,1 km²overlap0.17 km²0%
Lakes (1, top by area)
Rivers / streams (16, ord ≥ 4)
- Komoord 5len here257.60 km91%total284 km
- Rambouèord 6len here106.87 km83%total129 km
- Mbéord 4len here94.62 km52%total184 km
- Magaord 4len here79.67 km99%total80 km
- Abangaord 5len here66.94 km31%total217 km
- Bokouéord 4len here59.39 km100%total60 km
- Agoulaord 5len here40.30 km100%total40 km
- Avebeord 3len here35.29 km63%total56 km
- Elobeord 3len here21.95 km100%total22 km
- Bondéord 2len here21.73 km100%total22 km
- Noouéord 4len here19.84 km100%total20 km
- Abangaord 3len here18.49 km100%total19 km
4 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
1,9%
Pesticides
19,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas7
IUCN Not Reported · 3IUCN II · 3IUCN IV · 1🌊 Marine · 5
Reserve Présidentielle Wonga Wongué
IUCN Not ReportedPresidential reserve · 1972
4 260 km²
Wonga-Wongué
IUCN IVWetland of International Importance (Ramsar Site) · 1986
3 966 km²
Parc national des Monts de Cristal
IUCN IINational park · 2002
1 192 km²
Parc national de Pongara
IUCN IINational park · 2002
961 km²
Pongara
IUCN IIWetland of International Importance (Ramsar Site) · 2007
959 km²
Complete list7 protected areas
- Bas OgooueWetland of International Importance (Ramsar Site)IUCN Not Reported200913 637 km²
- Reserve Présidentielle Wonga WonguéPresidential reserveIUCN Not Reported19724 260 km²
- Wonga-WonguéWetland of International Importance (Ramsar Site)IUCN IV19863 966 km²
- Parc national des Monts de CristalNational parkIUCN II20021 192 km²
- Parc national de PongaraNational parkIUCN II2002961 km²
- PongaraWetland of International Importance (Ramsar Site)IUCN II2007959 km²
- Sanctuaire de la Nature de BegnoungNature sanctuaryIUCN Not Reported202219 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN