Ontologia

Commune · TCD

Ndam

Chad

AwTropical, savannah(100 %)

Species observed

42

Observations

112

Area

2 246,1km²

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Species present

42 distinct species · 112 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

112 obs · 17 cellules
Obs. / cellule
≥ 28
21–27
6–20
2–5
< 2

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

28,0°C

Annual rain

940mm

Warmest m°

39,4°C

Coldest m°

18,5°C

Elevation: 346 m on average (min 337 m, max 359 m)

Bioclimatic detailsExpert
Annual mean temp.
28,0°C
Annual rain
940mm
Warmest month
39,4°C
Coldest month
18,5°C
Mean alt.
346m
Min
337m
Max
359m
Std. dev.
5m
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

10,7g/kg

Clay

30,3%

Sand

37,1%

Silt

32,7%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: suGLiMaggregated to Tandjilé Est

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
13,8g/kg
Clay
28,2%
Sand
38,7%
Silt
33,1%
5–15 cm
pH H₂O
6,2
Org. C
11,9g/kg
Clay
28,1%
Sand
38,6%
Silt
33,4%
15–30 cm
pH H₂O
6,2
Org. C
6,5g/kg
Clay
34,5%
Sand
33,9%
Silt
31,6%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest21.4%
Crops7.7%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)70.9%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology11 basins · 0 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

331,7km

Basins crossed

11

Max stream order

6

Max drainage

12 515km²

Discharge in basins

107,1m³/s

Mean precip.

965mm/an

Mean T°

28,0°C

Moisture idx

-0,53

Mean runoff

184mm/an

Mean elev. (basins)

351m

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Built-up

1,1%

Pesticides

0,0kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)