Ontologia

HydroBASINS lev08 watershed · #4080014990

Bassin · #4080014990

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 3 administrative regions : Giao Thủy, Thái Thụy, Tiền Hải

Coastal basin 13% lakePfafstetter: 43670905

Sub-basin area

107,6km²

Upstream area

107,6km²

Discharge

3,03m³/s

Mean elev.

1m

Administrative coverage

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Red River Delta

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    102.30 km² overlap

  • Tien Hai

    IUCN IV

    Nature Reserve

    31.67 km² overlap

  • Xuan Thuy

    IUCN II

    National Park

    0.24 km² overlap

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

Species present

25 distinct species · 38 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

38 obs · 3 cellules
Obs. / cellule
≥ 24
24–23
24–23
13–23
< 13

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

Ecological tissue

Sample of 3 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 · #4080014990 : 2 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 2 interactions GloBI sur 2 types (connectance 33.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
4
Interactions affichées
2
Connectance
0.333
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°

24,4°C

Annual rain

1 717mm

Moisture idx (CMI)

0,27

Runoff

888mm/an

PET

1 251mm

AET

1 046mm

Mean slope

0,0°

Water table

4cm

Forest

0%

Crops

42%

Urban

36%

Protected

33%

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