Ontologia

Prefecture City · CHN

Longnan

China

DwbCold, dry winter, warm summer(69 %)

Species observed

4 160

Observations

61 054

Area

28 458,9km²

Ecological tissue

Sample of 30 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 Longnan : 27 espèces reliées par 29 interactions GloBI sur 2 types (connectance 6.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
29
Connectance
0.067
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

4 160 distinct species · 61 054 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

61 054 obs · 262 cellules
Obs. / cellule
≥ 7 738
83–7 737
10–82
3–9
< 3

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

Climate

Mean T°

8,9°C

Annual rain

790mm

Warmest m°

23,0°C

Coldest m°

-9,6°C

Elevation: 1 809 m on average (min 645 m, max 3 783 m)

Bioclimatic detailsExpert
Annual mean temp.
8,9°C
Annual rain
790mm
Warmest month
23,0°C
Coldest month
-9,6°C
Mean alt.
1 809m
Min
645m
Max
3 783m
Std. dev.
527m
Köppen-Geiger (dominant)
DwbCold, dry winter, warm summer(69 %)Cold

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

Soil & lithology

pH H₂O

6,6

Org. C

31,7g/kg

Clay

23,0%

Sand

31,0%

Silt

45,9%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
52,1g/kg
Clay
22,0%
Sand
31,5%
Silt
46,5%
5–15 cm
pH H₂O
6,6
Org. C
24,6g/kg
Clay
23,2%
Sand
31,0%
Silt
45,8%
15–30 cm
pH H₂O
6,7
Org. C
18,3g/kg
Clay
23,9%
Sand
30,6%
Silt
45,5%

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

Land cover

Forest45.7%
Crops11.9%
Built-up0.1%
Bare soil1.1%
Other (grassland, water…)41.1%

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

Hydrology72 basins · 4 lakes · 54 rivers

Hydrology metrics for this exact territory

Stream length here

2 968,2km

Lake surface here

8,57km²

Basins crossed

72

Max stream order

6

Max drainage

29 370km²

Discharge in basins

2 232,6m³/s

Mean precip.

674mm/an

Mean T°

10,0°C

Moisture idx

-0,30

Max snow

11%

Mean runoff

298mm/an

Mean elev. (basins)

1 815m

Watersheds crossing here

63 more basins

Lakes (4, top by area)

Rivers / streams (54, ord ≥ 4)

42 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

13,6%

Pesticides

64,8kg/km²

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

Protected areas1

IUCN Not Applicable · 1

Baishuijiang

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 2000

2 660 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations7