Ontologia

Commune · TCD

Ngam

Chad

BShArid, steppe, hot(60 %)

Species observed

35

Observations

67

Area

1 158km²

Ecological tissue

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

Species present

35 distinct species · 67 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

67 obs · 8 cellules
Obs. / cellule
≥ 36
36–35
8–35
4–7
< 4

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

Climate

Mean T°

28,4°C

Annual rain

827mm

Warmest m°

40,4°C

Coldest m°

18,2°C

Elevation: 331 m on average (min 325 m, max 339 m)

Bioclimatic detailsExpert
Annual mean temp.
28,4°C
Annual rain
827mm
Warmest month
40,4°C
Coldest month
18,2°C
Mean alt.
331m
Min
325m
Max
339m
Std. dev.
3m
Köppen-Geiger (dominant)
BShArid, steppe, hot(60 %)Arid

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,3

Org. C

8,7g/kg

Clay

31,2%

Sand

37,7%

Silt

31,1%

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

Dominant lithology: suGLiMaggregated to Mayo-Boneye

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
10,9g/kg
Clay
29,9%
Sand
38,3%
Silt
31,8%
5–15 cm
pH H₂O
6,3
Org. C
9,1g/kg
Clay
29,5%
Sand
38,9%
Silt
31,6%
15–30 cm
pH H₂O
6,3
Org. C
6,0g/kg
Clay
34,2%
Sand
35,7%
Silt
30,1%

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

Land cover

Forest12.1%
Crops14.9%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)72.9%

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

Hydrology8 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

78,0km

Basins crossed

8

Max stream order

4

Max drainage

496 666km²

Discharge in basins

67,8m³/s

Mean precip.

831mm/an

Mean T°

28,0°C

Moisture idx

-0,59

Mean runoff

189mm/an

Mean elev. (basins)

334m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Built-up

3,9%

Pesticides

0,1kg/km²

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