Ontologia

Commune · CHN

Barkam

China

DwcCold, dry winter, cold summer(41 %)

Species observed

2 424

Observations

34 389

Area

6 614,2km²

Ecological tissue

Sample of 21 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 Barkam : 15 espèces reliées par 23 interactions GloBI sur 3 types (connectance 9.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
23
Connectance
0.091
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

2 424 distinct species · 34 389 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

34 389 obs · 71 cellules
Obs. / cellule
≥ 23 003
115–23 002
19–114
5–18
< 5

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

Climate

Mean T°

0,5°C

Annual rain

1 237mm

Warmest m°

15,5°C

Coldest m°

-22,7°C

Elevation: 3 802 m on average (min 2 393 m, max 4 819 m)

Bioclimatic detailsExpert
Annual mean temp.
0,5°C
Annual rain
1 237mm
Warmest month
15,5°C
Coldest month
-22,7°C
Mean alt.
3 802m
Min
2 393m
Max
4 819m
Std. dev.
461m
Köppen-Geiger (dominant)
DwcCold, dry winter, cold summer(41 %)Cold

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

Soil & lithology

pH H₂O

6,1

Org. C

60,3g/kg

Clay

18,0%

Sand

38,7%

Silt

43,3%

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

Dominant lithology: smGLiMaggregated to Ngawa Tibetan and Qiang

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
90,0g/kg
Clay
17,5%
Sand
38,8%
Silt
43,7%
5–15 cm
pH H₂O
6,1
Org. C
55,6g/kg
Clay
18,5%
Sand
38,4%
Silt
43,1%
15–30 cm
pH H₂O
6,1
Org. C
35,4g/kg
Clay
18,1%
Sand
38,9%
Silt
43,1%

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

Land cover

Forest41.6%
Crops0.1%
Built-up0.0%
Bare soil7.1%
Other (grassland, water…)51.2%

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

Hydrology35 basins · 2 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

597,1km

Lake surface here

0,28km²

Basins crossed

35

Max stream order

6

Max drainage

40 585km²

Discharge in basins

1 988,3m³/s

Mean precip.

797mm/an

Mean T°

2,7°C

Moisture idx

-0,06

Max snow

24%

Mean runoff

411mm/an

Mean elev. (basins)

3 798m

Watersheds crossing here

26 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

0,4%

Pesticides

38,8kg/km²

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