Ontologia

Commune · CHN

Amdo

China

ETPolar, tundra(99 %)

Species observed

413

Observations

1 139

Area

25 784,1km²

Ecological tissue

Sample of 25 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 Amdo : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
26
Connectance
0.087
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

413 distinct species · 1 139 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 139 obs · 55 cellules
Obs. / cellule
≥ 723
31–722
7–30
2–6
< 2

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

Climate

Mean T°

-4,5°C

Annual rain

622mm

Warmest m°

11,6°C

Coldest m°

-23,7°C

Elevation: 4 926 m on average (min 4 537 m, max 6 032 m)

Bioclimatic detailsExpert
Annual mean temp.
-4,5°C
Annual rain
622mm
Warmest month
11,6°C
Coldest month
-23,7°C
Mean alt.
4 926m
Min
4 537m
Max
6 032m
Std. dev.
222m
Köppen-Geiger (dominant)
ETPolar, tundra(99 %)Polar

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

Soil & lithology

pH H₂O

7,4

Org. C

31,1g/kg

Clay

15,7%

Sand

58,0%

Silt

26,3%

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

Dominant lithology: smGLiMaggregated to Nagchu

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,4
Org. C
36,5g/kg
Clay
15,3%
Sand
58,6%
Silt
26,1%
5–15 cm
pH H₂O
7,4
Org. C
33,9g/kg
Clay
15,2%
Sand
58,4%
Silt
26,4%
15–30 cm
pH H₂O
7,4
Org. C
22,8g/kg
Clay
16,6%
Sand
57,0%
Silt
26,4%

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

Land cover

Forest0.0%
Crops0.0%
Built-up0.0%
Bare soil26.2%
Other (grassland, water…)73.8%

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

Hydrology61 basins · 50 lakes · 16 rivers

Hydrology metrics for this exact territory

Stream length here

837,3km

Lake surface here

644,99km²

Basins crossed

61

Max stream order

5

Max drainage

12 860km²

Discharge in basins

222,8m³/s

Mean precip.

327mm/an

Mean T°

-4,0°C

Moisture idx

-0,45

Max snow

33%

Mean runoff

112mm/an

Mean elev. (basins)

4 928m

Watersheds crossing here

52 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (16, ord ≥ 4)

4 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,1%

Pesticides

0,2kg/km²

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

Protected areas1

IUCN Ia · 1

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