Ontologia

Commune · CHN

Ba

China

BSkArid, steppe, cold(100 %)

Species observed

20

Observations

22

Area

832,3km²

Ecological tissue

Sample of 11 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 Ba : 11 espèces reliées par 8 interactions GloBI sur 3 types (connectance 14.5%, filtre Serrano α=0.2).

Espèces affichées
11
Interactions affichées
8
Connectance
0.145
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

20 distinct species · 22 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 obs · 8 cellules
Obs. / cellule
≥ 12
12–11
2–11
1–1
< 1

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

Climate

Mean T°

13,5°C

Annual rain

516mm

Warmest m°

31,4°C

Coldest m°

-7,4°C

Elevation: 5 m on average (min 1 m, max 12 m)

Bioclimatic detailsExpert
Annual mean temp.
13,5°C
Annual rain
516mm
Warmest month
31,4°C
Coldest month
-7,4°C
Mean alt.
5m
Min
1m
Max
12m
Std. dev.
2m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(100 %)Arid

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

Soil & lithology

pH H₂O

8,1

Org. C

11,0g/kg

Clay

20,8%

Sand

37,3%

Silt

41,8%

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

Dominant lithology: suGLiMaggregated to Langfang

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
13,2g/kg
Clay
20,6%
Sand
37,6%
Silt
41,7%
5–15 cm
pH H₂O
8,1
Org. C
9,0g/kg
Clay
20,5%
Sand
37,7%
Silt
41,9%
15–30 cm
pH H₂O
8,1
Org. C
10,7g/kg
Clay
21,4%
Sand
36,7%
Silt
41,9%

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

Land cover

Forest6.7%
Crops49.3%
Built-up7.5%
Bare soil3.2%
Other (grassland, water…)33.3%

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

Hydrology6 basins · 0 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

143,0km

Basins crossed

6

Max stream order

6

Max drainage

139 831km²

Discharge in basins

87,3m³/s

Mean precip.

524mm/an

Mean T°

12,5°C

Moisture idx

-0,51

Max snow

1%

Mean runoff

31mm/an

Mean elev. (basins)

10m

Watersheds crossing here

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

Human pressure

Pop. density

5hab/km²

Night light

4,9nW

Built-up

748,3%

Pesticides

68,5kg/km²

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