Ontologia

Commune · CHN

Zhidan

China

DwbCold, dry winter, warm summer(52 %)

Species observed

97

Observations

136

Area

3 775km²

Ecological tissue

Sample of 3 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 Zhidan : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

97 distinct species · 136 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

136 obs · 1 cellules
Obs. / cellule
≥ 136
136–135
136–135
136–135
< 136

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

Climate

Mean T°

8,5°C

Annual rain

517mm

Warmest m°

26,5°C

Coldest m°

-11,6°C

Elevation: 1 424 m on average (min 1 178 m, max 1 629 m)

Bioclimatic detailsExpert
Annual mean temp.
8,5°C
Annual rain
517mm
Warmest month
26,5°C
Coldest month
-11,6°C
Mean alt.
1 424m
Min
1 178m
Max
1 629m
Std. dev.
90m
Köppen-Geiger (dominant)
DwbCold, dry winter, warm summer(52 %)Cold

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

Soil & lithology

pH H₂O

8,2

Org. C

14,2g/kg

Clay

18,8%

Sand

42,5%

Silt

38,7%

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

Dominant lithology: ssGLiMaggregated to Yan'an

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,2
Org. C
25,1g/kg
Clay
17,8%
Sand
42,9%
Silt
39,3%
5–15 cm
pH H₂O
8,2
Org. C
9,7g/kg
Clay
19,3%
Sand
42,4%
Silt
38,3%
15–30 cm
pH H₂O
8,3
Org. C
7,8g/kg
Clay
19,3%
Sand
42,3%
Silt
38,4%

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

Land cover

Forest22.9%
Crops17.6%
Built-up0.1%
Bare soil1.9%
Other (grassland, water…)57.4%

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

Hydrology13 basins · 1 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

399,5km

Lake surface here

2,43km²

Basins crossed

13

Max stream order

4

Max drainage

9 515km²

Discharge in basins

14,2m³/s

Mean precip.

463mm/an

Mean T°

8,2°C

Moisture idx

-0,54

Max snow

1%

Mean runoff

48mm/an

Mean elev. (basins)

1 408m

Watersheds crossing here

4 more basins

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

6,6%

Pesticides

69,4kg/km²

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