Ontologia

Commune · CHN

Da

China

CwaTemperate, dry winter, hot summer(100 %)

Species observed

28

Observations

33

Area

2 830,7km²

Ecological tissue

Sample of 5 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 Da : 5 espèces reliées par 3 interactions GloBI sur 1 type (connectance 30.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
3
Connectance
0.300
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

28 distinct species · 33 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

33 obs · 18 cellules
Obs. / cellule
≥ 5
4–4
2–3
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°

17,3°C

Annual rain

1 438mm

Warmest m°

30,2°C

Coldest m°

2,0°C

Elevation: 468 m on average (min 268 m, max 855 m)

Bioclimatic detailsExpert
Annual mean temp.
17,3°C
Annual rain
1 438mm
Warmest month
30,2°C
Coldest month
2,0°C
Mean alt.
468m
Min
268m
Max
855m
Std. dev.
123m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

6,3

Org. C

22,6g/kg

Clay

27,7%

Sand

29,6%

Silt

42,7%

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

Dominant lithology: ssGLiMaggregated to Dazhou

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
39,9g/kg
Clay
27,4%
Sand
30,0%
Silt
42,6%
5–15 cm
pH H₂O
6,3
Org. C
15,5g/kg
Clay
27,3%
Sand
29,8%
Silt
42,9%
15–30 cm
pH H₂O
6,3
Org. C
12,4g/kg
Clay
28,3%
Sand
29,1%
Silt
42,6%

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

Land cover

Forest44.1%
Crops35.6%
Built-up0.5%
Bare soil0.6%
Other (grassland, water…)19.3%

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

Hydrology14 basins · 5 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

405,2km

Lake surface here

2,07km²

Basins crossed

14

Max stream order

6

Max drainage

19 508km²

Discharge in basins

1 130,0m³/s

Mean precip.

1 168mm/an

Mean T°

16,7°C

Moisture idx

0,06

Max snow

3%

Mean runoff

698mm/an

Mean elev. (basins)

512m

Watersheds crossing here

5 more basins

Lakes (5, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

0,4nW

Built-up

44,6%

Pesticides

76,9kg/km²

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