Ontologia

Prefecture City · CHN

Chengdu

China

CwaTemperate, dry winter, hot summer(89 %)

Species observed

2 957

Observations

67 897

Area

10 864,9km²

Ecological tissue

Sample of 33 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 Chengdu : 25 espèces reliées par 46 interactions GloBI sur 4 types (connectance 8.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
46
Connectance
0.082
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

2 957 distinct species · 67 897 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

67 897 obs · 275 cellules
Obs. / cellule
≥ 6 121
454–6 120
67–453
19–66
< 19

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

Climate

Mean T°

15,7°C

Annual rain

1 210mm

Warmest m°

27,8°C

Coldest m°

1,1°C

Elevation: 772 m on average (min 405 m, max 4 550 m)

Bioclimatic detailsExpert
Annual mean temp.
15,7°C
Annual rain
1 210mm
Warmest month
27,8°C
Coldest month
1,1°C
Mean alt.
772m
Min
405m
Max
4 550m
Std. dev.
590m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(89 %)Temperate

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

Soil & lithology

pH H₂O

6,6

Org. C

30,1g/kg

Clay

28,3%

Sand

25,1%

Silt

46,6%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
50,6g/kg
Clay
27,7%
Sand
25,1%
Silt
47,2%
5–15 cm
pH H₂O
6,6
Org. C
22,7g/kg
Clay
28,3%
Sand
25,1%
Silt
46,6%
15–30 cm
pH H₂O
6,7
Org. C
16,8g/kg
Clay
29,0%
Sand
25,0%
Silt
46,0%

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

Land cover

Forest27.8%
Crops33.0%
Built-up3.7%
Bare soil1.9%
Other (grassland, water…)33.5%

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

Hydrology32 basins · 35 lakes · 96 rivers

Hydrology metrics for this exact territory

Stream length here

2 201,8km

Lake surface here

11,78km²

Basins crossed

32

Max stream order

6

Max drainage

31 101km²

Discharge in basins

1 590,5m³/s

Mean precip.

1 117mm/an

Mean T°

15,5°C

Moisture idx

0,06

Max snow

15%

Mean runoff

640mm/an

Mean elev. (basins)

766m

Watersheds crossing here

23 more basins

Lakes (35, top by area)

26 more lakes

Rivers / streams (96, ord ≥ 4)

84 more river segments

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

Human pressure

Pop. density

9hab/km²

Night light

5,4nW

Built-up

373,2%

Pesticides

72,0kg/km²

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

Protected areas2

IUCN Not Applicable · 2

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations12