Ontologia

Autonomous Prefecture · CHN

Gannan Tibetan

China

DwcCold, dry winter, cold summer(70 %)

Species observed

3 553

Observations

32 431

Area

36 505,1km²

Ecological tissue

Sample of 39 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 Gannan Tibetan : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 64 interactions GloBI sur 3 types (connectance 8.2%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
64
Connectance
0.082
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

3 553 distinct species · 32 431 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

32 431 obs · 316 cellules
Obs. / cellule
≥ 2 082
92–2 081
17–91
5–16
< 5

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

Climate

Mean T°

0,6°C

Annual rain

885mm

Warmest m°

15,9°C

Coldest m°

-21,5°C

Elevation: 3 375 m on average (min 1 380 m, max 4 579 m)

Bioclimatic detailsExpert
Annual mean temp.
0,6°C
Annual rain
885mm
Warmest month
15,9°C
Coldest month
-21,5°C
Mean alt.
3 375m
Min
1 380m
Max
4 579m
Std. dev.
482m
Köppen-Geiger (dominant)
DwcCold, dry winter, cold summer(70 %)Cold

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

Soil & lithology

pH H₂O

6,9

Org. C

51,3g/kg

Clay

21,2%

Sand

31,2%

Silt

47,6%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
71,0g/kg
Clay
20,3%
Sand
31,7%
Silt
48,0%
5–15 cm
pH H₂O
6,9
Org. C
48,0g/kg
Clay
21,2%
Sand
31,2%
Silt
47,6%
15–30 cm
pH H₂O
7,0
Org. C
34,9g/kg
Clay
22,0%
Sand
30,6%
Silt
47,3%

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

Land cover

Forest17.4%
Crops2.2%
Built-up0.0%
Bare soil4.1%
Other (grassland, water…)76.3%

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

Hydrology75 basins · 5 lakes · 38 rivers

Hydrology metrics for this exact territory

Stream length here

3 192,4km

Lake surface here

5,13km²

Basins crossed

75

Max stream order

6

Max drainage

96 575km²

Discharge in basins

3 267,2m³/s

Mean precip.

633mm/an

Mean T°

1,7°C

Moisture idx

-0,19

Max snow

11%

Mean runoff

228mm/an

Mean elev. (basins)

3 373m

Watersheds crossing here

66 more basins

Lakes (5, top by area)

Rivers / streams (38, ord ≥ 4)

26 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

2,4%

Pesticides

26,4kg/km²

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

Protected areas2

IUCN Not Reported · 1IUCN Ia · 1

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

Sub-administrations7