Ontologia

Commune · CHN

Yajiang

China

DwcCold, dry winter, cold summer(38 %)

Species observed

1 228

Observations

3 765

Area

7 550,1km²

Ecological tissue

Sample of 14 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 Yajiang : 8 espèces reliées par 17 interactions GloBI sur 2 types (connectance 18.7%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
17
Connectance
0.187
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

1 228 distinct species · 3 765 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 765 obs · 57 cellules
Obs. / cellule
≥ 2 480
122–2 479
19–121
2–18
< 2

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

Climate

Mean T°

2,5°C

Annual rain

1 211mm

Warmest m°

15,6°C

Coldest m°

-18,2°C

Elevation: 3 961 m on average (min 2 408 m, max 4 926 m)

Bioclimatic detailsExpert
Annual mean temp.
2,5°C
Annual rain
1 211mm
Warmest month
15,6°C
Coldest month
-18,2°C
Mean alt.
3 961m
Min
2 408m
Max
4 926m
Std. dev.
490m
Köppen-Geiger (dominant)
DwcCold, dry winter, cold summer(38 %)Cold

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

Soil & lithology

pH H₂O

6,2

Org. C

60,7g/kg

Clay

19,0%

Sand

44,8%

Silt

36,2%

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

Dominant lithology: paGLiMaggregated to Garzê Tibetan

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
91,4g/kg
Clay
17,9%
Sand
45,6%
Silt
36,6%
5–15 cm
pH H₂O
6,2
Org. C
58,4g/kg
Clay
19,0%
Sand
44,8%
Silt
36,2%
15–30 cm
pH H₂O
6,2
Org. C
32,2g/kg
Clay
20,2%
Sand
44,0%
Silt
35,8%

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

Land cover

Forest43.6%
Crops0.1%
Built-up0.0%
Bare soil4.7%
Other (grassland, water…)51.6%

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

Hydrology26 basins · 2 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

919,3km

Lake surface here

0,43km²

Basins crossed

26

Max stream order

6

Max drainage

78 996km²

Discharge in basins

4 960,2m³/s

Mean precip.

783mm/an

Mean T°

3,0°C

Moisture idx

-0,06

Max snow

14%

Mean runoff

405mm/an

Mean elev. (basins)

4 020m

Watersheds crossing here

17 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

0,0nW

Built-up

0,1%

Pesticides

22,1kg/km²

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