Ontologia

Prefecture · CHN

Chamdo

China

ETPolar, tundra(58 %)

Species observed

2 751

Observations

15 695

Area

106 189km²

Ecological tissue

Sample of 36 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 Chamdo : 26 espèces reliées par 35 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
35
Connectance
0.056
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

2 751 distinct species · 15 695 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

15 695 obs · 60 cellules
Obs. / cellule
≥ 2 150
697–2 149
235–696
83–234
< 83

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

-2,3°C

Annual rain

893mm

Warmest m°

13,2°C

Coldest m°

-23,0°C

Elevation: 4 451 m on average (min 2 334 m, max 6 366 m)

Bioclimatic detailsExpert
Annual mean temp.
-2,3°C
Annual rain
893mm
Warmest month
13,2°C
Coldest month
-23,0°C
Mean alt.
4 451m
Min
2 334m
Max
6 366m
Std. dev.
494m
Köppen-Geiger (dominant)
ETPolar, tundra(58 %)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

51,3g/kg

Clay

16,8%

Sand

45,1%

Silt

38,1%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
73,3g/kg
Clay
15,8%
Sand
46,0%
Silt
38,2%
5–15 cm
pH H₂O
6,5
Org. C
53,8g/kg
Clay
17,1%
Sand
44,9%
Silt
38,0%
15–30 cm
pH H₂O
6,5
Org. C
26,7g/kg
Clay
17,6%
Sand
44,5%
Silt
37,9%

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

Land cover

Forest9.8%
Crops0.0%
Built-up0.0%
Bare soil17.1%
Other (grassland, water…)73.0%

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

Hydrology183 basins · 50 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

9 621,4km

Lake surface here

58,03km²

Basins crossed

183

Max stream order

7

Max drainage

190 293km²

Discharge in basins

18 094,4m³/s

Mean precip.

542mm/an

Mean T°

1,1°C

Moisture idx

-0,29

Max snow

65%

Mean runoff

359mm/an

Mean elev. (basins)

4 449m

Watersheds crossing here

174 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (100, ord ≥ 4)

88 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

0,2%

Pesticides

29,0kg/km²

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

Sub-administrations11