Ontologia

Prefecture City · CHN

Changde

China

CfaTemperate, no dry season, hot summer(97 %)

Species observed

1 537

Observations

4 532

Area

18 254,8km²

Ecological tissue

Sample of 45 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 Changde : 41 espèces reliées par 33 interactions GloBI sur 3 types (connectance 3.3%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
33
Connectance
0.033
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

1 537 distinct species · 4 532 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 532 obs · 106 cellules
Obs. / cellule
≥ 521
74–520
17–73
5–16
< 5

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

Climate

Mean T°

16,9°C

Annual rain

1 589mm

Warmest m°

31,0°C

Coldest m°

0,4°C

Elevation: 188 m on average (min 25 m, max 1 834 m)

Bioclimatic detailsExpert
Annual mean temp.
16,9°C
Annual rain
1 589mm
Warmest month
31,0°C
Coldest month
0,4°C
Mean alt.
188m
Min
25m
Max
1 834m
Std. dev.
249m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(97 %)Temperate

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

Soil & lithology

pH H₂O

6,1

Org. C

23,6g/kg

Clay

28,8%

Sand

27,1%

Silt

44,1%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
35,7g/kg
Clay
28,0%
Sand
27,5%
Silt
44,6%
5–15 cm
pH H₂O
6,1
Org. C
19,3g/kg
Clay
28,8%
Sand
27,1%
Silt
44,1%
15–30 cm
pH H₂O
6,2
Org. C
15,8g/kg
Clay
29,6%
Sand
26,7%
Silt
43,7%

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

Land cover

Forest42.1%
Crops28.3%
Built-up1.1%
Bare soil1.9%
Other (grassland, water…)26.5%

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

Hydrology46 basins · 50 lakes · 57 rivers

Hydrology metrics for this exact territory

Stream length here

2 478,1km

Lake surface here

287,90km²

Basins crossed

46

Max stream order

7

Max drainage

120 755km²

Discharge in basins

12 539,0m³/s

Mean precip.

1 325mm/an

Mean T°

16,6°C

Moisture idx

0,17

Max snow

6%

Mean runoff

644mm/an

Mean elev. (basins)

196m

Watersheds crossing here

37 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (57, ord ≥ 4)

45 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

0,4nW

Built-up

113,4%

Pesticides

77,3kg/km²

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

Protected areas1

IUCN VI · 1📍 Point sites · 1

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

Sub-administrations8