Ontologia

HydroBASINS lev08 watershed · #4080783120

Bassin de 长江

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 : Jingzhou, Yueyang

47% lakePfafstetter: 43491101

Sub-basin area

623,1km²

Upstream area

1 011 219,9km²

Discharge

14 226,01m³/s

Mean elev.

29m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 长江2314 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Dong dongting hu

    IUCN Ia

    Wetland of International Importance (Ramsar Site)

    278.34 km² overlap

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

Species present

138 distinct species · 416 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

416 obs · 9 cellules
Obs. / cellule
≥ 148
148–147
58–147
22–57
< 22

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

Ecological tissue

Sample of 33 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 长江 : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
41
Connectance
0.078
Patrimoniales
1
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°

17,0°C

Annual rain

1 274mm

Moisture idx (CMI)

0,19

Runoff

621mm/an

PET

1 036mm

AET

948mm

Mean slope

0,3°

Water table

18cm

Forest

18%

Crops

52%

Urban

14%

Protected

37%

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