Ontologia

Commune · CHN

Quannan

China

CfaTemperate, no dry season, hot summer(100 %)

Species observed

975

Observations

2 529

Area

1 541,7km²

Ecological tissue

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

Species present

975 distinct species · 2 529 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 529 obs · 14 cellules
Obs. / cellule
≥ 1 473
993–1 472
6–992
1–5
< 1

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

Climate

Mean T°

19,1°C

Annual rain

1 884mm

Warmest m°

30,7°C

Coldest m°

3,9°C

Elevation: 426 m on average (min 198 m, max 894 m)

Bioclimatic detailsExpert
Annual mean temp.
19,1°C
Annual rain
1 884mm
Warmest month
30,7°C
Coldest month
3,9°C
Mean alt.
426m
Min
198m
Max
894m
Std. dev.
130m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,5

Org. C

26,1g/kg

Clay

27,8%

Sand

41,0%

Silt

31,2%

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

Dominant lithology: ssGLiMaggregated to Ganzhou

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
39,9g/kg
Clay
26,8%
Sand
41,8%
Silt
31,3%
5–15 cm
pH H₂O
5,5
Org. C
22,6g/kg
Clay
27,0%
Sand
41,6%
Silt
31,4%
15–30 cm
pH H₂O
5,5
Org. C
15,7g/kg
Clay
29,4%
Sand
39,7%
Silt
30,9%

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

Land cover

Forest74.5%
Crops6.6%
Built-up0.3%
Bare soil0.5%
Other (grassland, water…)18.1%

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

Hydrology10 basins · 5 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

235,6km

Lake surface here

3,24km²

Basins crossed

10

Max stream order

5

Max drainage

3 698km²

Discharge in basins

100,3m³/s

Mean precip.

1 729mm/an

Mean T°

19,0°C

Moisture idx

0,28

Mean runoff

965mm/an

Mean elev. (basins)

437m

Watersheds crossing here

1 more basins

Lakes (5, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

33,0%

Pesticides

64,8kg/km²

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