Ontologia

Commune · CHN

Zanda

China

ETPolar, tundra(63 %)

Species observed

534

Observations

1 412

Area

22 157,3km²

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 Zanda : 24 espèces reliées par 38 interactions GloBI sur 5 types (connectance 8.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
38
Connectance
0.082
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

534 distinct species · 1 412 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 412 obs · 42 cellules
Obs. / cellule
≥ 1 245
13–1 244
4–12
1–3
< 1

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

Climate

Mean T°

-6,0°C

Annual rain

491mm

Warmest m°

13,4°C

Coldest m°

-27,9°C

Elevation: 4 748 m on average (min 3 076 m, max 6 420 m)

Bioclimatic detailsExpert
Annual mean temp.
-6,0°C
Annual rain
491mm
Warmest month
13,4°C
Coldest month
-27,9°C
Mean alt.
4 748m
Min
3 076m
Max
6 420m
Std. dev.
512m
Köppen-Geiger (dominant)
ETPolar, tundra(63 %)Polar

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

Soil & lithology

pH H₂O

7,0

Org. C

31,5g/kg

Clay

16,3%

Sand

50,6%

Silt

33,2%

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

Dominant lithology: smGLiMaggregated to Ngari

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,0
Org. C
37,7g/kg
Clay
15,7%
Sand
51,2%
Silt
33,1%
5–15 cm
pH H₂O
7,0
Org. C
31,5g/kg
Clay
16,3%
Sand
50,5%
Silt
33,2%
15–30 cm
pH H₂O
7,1
Org. C
25,4g/kg
Clay
16,7%
Sand
50,0%
Silt
33,2%

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

Land cover

Forest0.0%
Crops0.0%
Built-up0.0%
Bare soil71.1%
Other (grassland, water…)28.9%

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

Hydrology53 basins · 3 lakes · 77 rivers

Hydrology metrics for this exact territory

Stream length here

2 623,0km

Lake surface here

0,61km²

Basins crossed

53

Max stream order

5

Max drainage

42 949km²

Discharge in basins

1 990,4m³/s

Mean precip.

494mm/an

Mean T°

-1,6°C

Moisture idx

-0,24

Max snow

58%

Mean runoff

527mm/an

Mean elev. (basins)

4 749m

Watersheds crossing here

44 more basins

Lakes (3, top by area)

Rivers / streams (77, ord ≥ 4)

65 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

0,1kg/km²

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

Protected areas1

IUCN Not Applicable · 1

Nanda Devi

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 2004

5 666 km²

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