Ontologia

Commune · TCD

Nassian

Chad

AwTropical, savannah(100 %)

Species observed

31

Observations

48

Area

271,8km²

Ecological tissue

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

Species present

31 distinct species · 48 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

48 obs · 2 cellules
Obs. / cellule
≥ 34
34–33
34–33
34–33
< 34

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

Climate

Mean T°

27,4°C

Annual rain

975mm

Warmest m°

38,2°C

Coldest m°

18,8°C

Elevation: 383 m on average (min 369 m, max 425 m)

Bioclimatic detailsExpert
Annual mean temp.
27,4°C
Annual rain
975mm
Warmest month
38,2°C
Coldest month
18,8°C
Mean alt.
383m
Min
369m
Max
425m
Std. dev.
9m
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

10,8g/kg

Clay

25,3%

Sand

50,8%

Silt

23,9%

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

Dominant lithology: ssGLiMaggregated to Pendé

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
15,2g/kg
Clay
23,5%
Sand
52,3%
Silt
24,2%
5–15 cm
pH H₂O
6,2
Org. C
11,1g/kg
Clay
23,6%
Sand
52,1%
Silt
24,3%
15–30 cm
pH H₂O
6,1
Org. C
6,2g/kg
Clay
29,0%
Sand
47,9%
Silt
23,1%

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

Land cover

Forest8.3%
Crops22.3%
Built-up0.2%
Bare soil0.6%
Other (grassland, water…)68.7%

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

Hydrology3 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

76,9km

Basins crossed

3

Max stream order

5

Max drainage

18 545km²

Discharge in basins

34,8m³/s

Mean precip.

1 019mm/an

Mean T°

27,4°C

Moisture idx

-0,50

Mean runoff

340mm/an

Mean elev. (basins)

408m

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

Human pressure

Pop. density

0hab/km²

Built-up

17,9%

Pesticides

0,2kg/km²

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