Ontologia

Commune · CHN

Dêngqên

China

ETPolar, tundra(85 %)

Species observed

378

Observations

661

Area

11 193,8km²

Ecological tissue

Sample of 31 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 Dêngqên : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 3 types (connectance 8.0%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
37
Connectance
0.080
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

378 distinct species · 661 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

661 obs · 26 cellules
Obs. / cellule
≥ 271
41–270
24–40
9–23
< 9

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

Climate

Mean T°

-6,4°C

Annual rain

1 090mm

Warmest m°

11,3°C

Coldest m°

-27,0°C

Elevation: 4 763 m on average (min 3 500 m, max 6 120 m)

Bioclimatic detailsExpert
Annual mean temp.
-6,4°C
Annual rain
1 090mm
Warmest month
11,3°C
Coldest month
-27,0°C
Mean alt.
4 763m
Min
3 500m
Max
6 120m
Std. dev.
360m
Köppen-Geiger (dominant)
ETPolar, tundra(85 %)Polar

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

Soil & lithology

pH H₂O

6,5

Org. C

52,6g/kg

Clay

15,0%

Sand

47,9%

Silt

37,1%

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

Dominant lithology: smGLiMaggregated to Chamdo

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
72,6g/kg
Clay
14,0%
Sand
48,8%
Silt
37,1%
5–15 cm
pH H₂O
6,5
Org. C
57,5g/kg
Clay
15,1%
Sand
47,9%
Silt
37,0%
15–30 cm
pH H₂O
6,5
Org. C
27,7g/kg
Clay
15,9%
Sand
46,9%
Silt
37,1%

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

Land cover

Forest2.9%
Crops0.0%
Built-up0.0%
Bare soil27.7%
Other (grassland, water…)69.3%

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

Hydrology29 basins · 11 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

667,1km

Lake surface here

17,66km²

Basins crossed

29

Max stream order

6

Max drainage

73 756km²

Discharge in basins

479,1m³/s

Mean precip.

547mm/an

Mean T°

-1,2°C

Moisture idx

-0,19

Max snow

48%

Mean runoff

340mm/an

Mean elev. (basins)

4 740m

Watersheds crossing here

20 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,2%

Pesticides

43,6kg/km²

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