Ontologia

Commune · CHN

Shandan

China

BSkArid, steppe, cold(48 %)

Species observed

551

Observations

1 430

Area

4 999,1km²

Ecological tissue

Sample of 13 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 Shandan : 9 espèces reliées par 11 interactions GloBI sur 2 types (connectance 14.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
13
Interactions affichées
11
Connectance
0.141
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

551 distinct species · 1 430 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 430 obs · 23 cellules
Obs. / cellule
≥ 1 316
14–1 315
6–13
2–5
< 2

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

Climate

Mean T°

2,5°C

Annual rain

294mm

Warmest m°

21,7°C

Coldest m°

-19,9°C

Elevation: 2 426 m on average (min 1 548 m, max 4 175 m)

Bioclimatic detailsExpert
Annual mean temp.
2,5°C
Annual rain
294mm
Warmest month
21,7°C
Coldest month
-19,9°C
Mean alt.
2 426m
Min
1 548m
Max
4 175m
Std. dev.
534m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(48 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

22,5g/kg

Clay

19,0%

Sand

42,0%

Silt

39,0%

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

Dominant lithology: ssGLiMaggregated to Zhangye

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
29,3g/kg
Clay
18,8%
Sand
42,9%
Silt
38,3%
5–15 cm
pH H₂O
8,0
Org. C
21,7g/kg
Clay
18,3%
Sand
42,2%
Silt
39,5%
15–30 cm
pH H₂O
8,0
Org. C
16,6g/kg
Clay
20,1%
Sand
40,8%
Silt
39,1%

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

Land cover

Forest1.6%
Crops20.4%
Built-up0.2%
Bare soil17.2%
Other (grassland, water…)60.7%

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

Hydrology14 basins · 2 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

123,3km

Lake surface here

2,36km²

Basins crossed

14

Max stream order

4

Max drainage

8 931km²

Discharge in basins

1,8m³/s

Mean precip.

264mm/an

Mean T°

3,5°C

Moisture idx

-0,67

Max snow

8%

Mean runoff

10mm/an

Mean elev. (basins)

2 380m

Watersheds crossing here

5 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

16,1%

Pesticides

58,9kg/km²

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