Ontologia

Commune · CHN

Doumen

China

CwaTemperate, dry winter, hot summer(100 %)

Species observed

648

Observations

5 002

Area

1 122km²

Ecological tissue

Sample of 29 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Doumen : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 3 types (connectance 9.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
40
Connectance
0.099
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

648 distinct species · 5 002 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 002 obs · 29 cellules
Obs. / cellule
≥ 1 025
722–1 024
116–721
50–115
< 50

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

Climate

Mean T°

22,9°C

Annual rain

2 233mm

Warmest m°

29,7°C

Coldest m°

12,9°C

Elevation: 23 m on average (min -11 m, max 415 m)

Bioclimatic detailsExpert
Annual mean temp.
22,9°C
Annual rain
2 233mm
Warmest month
29,7°C
Coldest month
12,9°C
Mean alt.
23m
Min
-11m
Max
415m
Std. dev.
44m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, 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

5,7

Org. C

26,5g/kg

Clay

32,7%

Sand

25,8%

Silt

41,5%

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

Dominant lithology: paGLiMaggregated to Zhuhai

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
34,2g/kg
Clay
31,8%
Sand
26,7%
Silt
41,5%
5–15 cm
pH H₂O
5,7
Org. C
24,3g/kg
Clay
32,3%
Sand
25,7%
Silt
42,0%
15–30 cm
pH H₂O
5,7
Org. C
21,0g/kg
Clay
34,1%
Sand
24,8%
Silt
41,1%

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

Land cover

Forest24.0%
Crops17.8%
Built-up2.9%
Bare soil7.5%
Other (grassland, water…)47.9%

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

Hydrology3 basins · 7 lakes · 21 rivers

Hydrology metrics for this exact territory

Stream length here

121,3km

Lake surface here

2,48km²

Basins crossed

3

Max stream order

8

Max drainage

389 566km²

Discharge in basins

712,2m³/s

Mean precip.

1 593mm/an

Mean T°

22,6°C

Moisture idx

0,25

Mean runoff

1 199mm/an

Mean elev. (basins)

27m

Watersheds crossing here

Lakes (7, top by area)

Rivers / streams (21, ord ≥ 4)

9 more river segments

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

Human pressure

Pop. density

5hab/km²

Night light

8,9nW

Built-up

289,7%

Pesticides

78,5kg/km²

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