Ontologia

HydroBASINS lev08 watershed · #4080007310

Bassin de 老陡河

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 2 administrative regions : Tangshan, Tianjin

20% lakePfafstetter: 43130060

Sub-basin area

1 588,2km²

Upstream area

1 588,2km²

Discharge

1,32m³/s

Mean elev.

45m

Administrative coverage

2 dept-equivalent regions (GADM L2)

  • Tangshan
    Hebei · China
    1589.3 km²
    100.0% of basin
  • Tianjin
    Tianjin · China
    0.4 km²
    0.0% of basin

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 598 distinct species · 1 936 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 936 obs · 28 cellules
Obs. / cellule
≥ 1 302
111–1 301
12–110
5–11
< 5

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

Ecological tissue

Sample of 36 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 Bassin de 老陡河 : 30 espèces reliées par 47 interactions GloBI sur 3 types (connectance 7.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
47
Connectance
0.075
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

11,0°C

Annual rain

629mm

Moisture idx (CMI)

-0,39

Runoff

55mm/an

PET

1 040mm

AET

537mm

Mean slope

1,7°

Water table

112cm

Forest

15%

Crops

51%

Urban

61%

Protected

1%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)