Ontologia

Commune · CHN

Lhasa

China

DwbCold, dry winter, warm summer(46 %)

Species observed

2 213

Observations

10 653

Area

523,3km²

Ecological tissue

Sample of 27 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 Lhasa : 18 espèces reliées par 46 interactions GloBI sur 3 types (connectance 11.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
46
Connectance
0.113
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

2 213 distinct species · 10 653 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 653 obs · 12 cellules
Obs. / cellule
≥ 4 898
4 498–4 897
333–4 497
146–332
< 146

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

Climate

Mean T°

3,4°C

Annual rain

701mm

Warmest m°

17,8°C

Coldest m°

-16,8°C

Elevation: 4 293 m on average (min 3 632 m, max 5 292 m)

Bioclimatic detailsExpert
Annual mean temp.
3,4°C
Annual rain
701mm
Warmest month
17,8°C
Coldest month
-16,8°C
Mean alt.
4 293m
Min
3 632m
Max
5 292m
Std. dev.
531m
Köppen-Geiger (dominant)
DwbCold, dry winter, warm summer(46 %)Cold

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

Soil & lithology

pH H₂O

7,2

Org. C

23,8g/kg

Clay

13,3%

Sand

51,0%

Silt

35,6%

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

Dominant lithology: paGLiMaggregated to Lhasa

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,2
Org. C
31,0g/kg
Clay
12,9%
Sand
51,3%
Silt
35,8%
5–15 cm
pH H₂O
7,2
Org. C
23,6g/kg
Clay
13,5%
Sand
50,9%
Silt
35,6%
15–30 cm
pH H₂O
7,3
Org. C
16,9g/kg
Clay
13,6%
Sand
50,9%
Silt
35,5%

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

Land cover

Forest0.4%
Crops0.0%
Built-up3.0%
Bare soil12.3%
Other (grassland, water…)84.3%

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

Hydrology5 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

56,3km

Basins crossed

5

Max stream order

6

Max drainage

159 404km²

Discharge in basins

42,8m³/s

Mean precip.

319mm/an

Mean T°

2,9°C

Moisture idx

-0,64

Max snow

2%

Mean runoff

121mm/an

Mean elev. (basins)

4 425m

Watersheds crossing here

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

Human pressure

Pop. density

5hab/km²

Night light

7,7nW

Built-up

301,5%

Pesticides

97,2kg/km²

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