Ontologia

Commune · TCD

Deressia

Chad

AwTropical, savannah(100 %)

Species observed

41

Observations

73

Area

1 220,7km²

Ecological tissue

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

Species present

41 distinct species · 73 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

73 obs · 10 cellules
Obs. / cellule
≥ 16
16–15
12–15
8–11
< 8

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

Climate

Mean T°

28,1°C

Annual rain

924mm

Warmest m°

39,7°C

Coldest m°

18,7°C

Elevation: 344 m on average (min 338 m, max 351 m)

Bioclimatic detailsExpert
Annual mean temp.
28,1°C
Annual rain
924mm
Warmest month
39,7°C
Coldest month
18,7°C
Mean alt.
344m
Min
338m
Max
351m
Std. dev.
3m
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

6,3

Org. C

8,7g/kg

Clay

26,2%

Sand

39,9%

Silt

33,8%

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
6,4
Org. C
11,2g/kg
Clay
24,1%
Sand
41,5%
Silt
34,4%
5–15 cm
pH H₂O
6,4
Org. C
9,5g/kg
Clay
24,4%
Sand
41,1%
Silt
34,5%
15–30 cm
pH H₂O
6,3
Org. C
5,4g/kg
Clay
30,2%
Sand
37,2%
Silt
32,6%

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

Land cover

Forest8.3%
Crops13.0%
Built-up0.1%
Bare soil0.3%
Other (grassland, water…)78.3%

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

Hydrology5 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

125,3km

Basins crossed

5

Max stream order

3

Max drainage

2 573km²

Discharge in basins

9,9m³/s

Mean precip.

905mm/an

Mean T°

27,9°C

Moisture idx

-0,56

Mean runoff

252mm/an

Mean elev. (basins)

344m

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

Human pressure

Pop. density

0hab/km²

Built-up

9,9%

Pesticides

0,1kg/km²

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