Ontologia

Commune · CHN

Dunhuang

China

BWkArid, desert, cold(100 %)

Species observed

278

Observations

1 634

Area

25 480,8km²

Ecological tissue

Sample of 42 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 Dunhuang : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 5 types (connectance 10.9%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
98
Connectance
0.108
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

278 distinct species · 1 634 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 634 obs · 40 cellules
Obs. / cellule
≥ 441
114–440
36–113
3–35
< 3

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

Climate

Mean T°

10,8°C

Annual rain

41mm

Warmest m°

32,7°C

Coldest m°

-12,4°C

Elevation: 1 299 m on average (min 814 m, max 2 158 m)

Bioclimatic detailsExpert
Annual mean temp.
10,8°C
Annual rain
41mm
Warmest month
32,7°C
Coldest month
-12,4°C
Mean alt.
1 299m
Min
814m
Max
2 158m
Std. dev.
267m
Köppen-Geiger (dominant)
BWkArid, desert, cold(100 %)Arid

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

7,2g/kg

Clay

26,4%

Sand

33,0%

Silt

40,6%

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

Dominant lithology: paGLiMaggregated to Jiuquan

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,2
Org. C
8,7g/kg
Clay
26,5%
Sand
33,2%
Silt
40,3%
5–15 cm
pH H₂O
8,2
Org. C
7,2g/kg
Clay
26,4%
Sand
32,8%
Silt
40,8%
15–30 cm
pH H₂O
8,3
Org. C
5,8g/kg
Clay
26,4%
Sand
33,0%
Silt
40,6%

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

Land cover

Forest0.1%
Crops1.5%
Built-up0.0%
Bare soil96.0%
Other (grassland, water…)2.3%

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

Hydrology56 basins · 4 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

480,5km

Lake surface here

2,78km²

Basins crossed

56

Max stream order

7

Max drainage

91 361km²

Discharge in basins

230,4m³/s

Mean precip.

38mm/an

Mean T°

8,0°C

Moisture idx

-0,96

Max snow

6%

Mean runoff

4mm/an

Mean elev. (basins)

1 481m

Watersheds crossing here

47 more basins

Lakes (4, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

2,3%

Pesticides

12,0kg/km²

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

Protected areas1

IUCN Ib · 1

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