Ontologia

HydroBASINS lev08 watershed · #4080014730

Bassin de Sông Uông

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 8 administrative regions : Cát Hải, Hoành Bồ, Hạ Long, Hải An, Quảng Yên +3

Coastal basin 22% lakePfafstetter: 43670795

Sub-basin area

1 443,1km²

Upstream area

1 443,1km²

Discharge

4,37m³/s

Mean elev.

96m

Administrative coverage

8 dept-equivalent regions (GADM L2)

9 intersecting protected areas

  • Cat Ba

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    225.90 km² overlap

  • Ha Long Bay - Cat Ba Archipelago

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    219.28 km² overlap

  • Dao Cat Ba

    IUCN Not Reported

    Marine Protected Area

    201.69 km² overlap

  • Cat Ba

    IUCN II

    National Park

    111.10 km² overlap

  • Ha Long Bay

    IUCN Not Reported

    Cultural and Historical Site

    64.77 km² overlap

  • Dong Son-Ky Thuong

    IUCN Not Reported

    Nature Reserve

    45.20 km² overlap

  • Bai Chay

    IUCN V

    Cultural and Historical Site

    20.60 km² overlap

  • Tay Yen Tu

    IUCN IV

    Nature Reserve

    2.93 km² overlap

  • Cac Dao Vinh Ha Long

    IUCN Not Reported

    Cultural and Historical Site

    2.48 km² overlap

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

Species present

361 distinct species · 1 049 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 049 obs · 24 cellules
Obs. / cellule
≥ 379
92–378
32–91
10–31
< 10

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

Ecological tissue

Sample of 39 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 Sông Uông : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 4 types (connectance 5.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
43
Connectance
0.058
Patrimoniales
3
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°

23,3°C

Annual rain

1 799mm

Moisture idx (CMI)

0,31

Runoff

855mm/an

PET

1 229mm

AET

1 003mm

Mean slope

7,4°

Water table

270cm

Forest

2%

Crops

17%

Urban

11%

Protected

15%

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