Ontologia

HydroBASINS lev08 watershed · #4081021800

Bassin de Sông Hồng

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 14 administrative regions : Cẩm Khê, Hạ Hoà, Phù Yên, Phú Thọ, Thanh Ba +9

5% lakePfafstetter: 43684130

Sub-basin area

2 533,5km²

Upstream area

47 030,7km²

Discharge

744,78m³/s

Mean elev.

223m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Hồng333 km²

▲ Receives from 2 basins

14 dept-equivalent regions (GADM L2)

6 more

1 intersecting protected areas

  • Ta Xua

    IUCN Not Reported

    Nature Reserve

    4.60 km² overlap

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

Species present

150 distinct species · 330 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

330 obs · 39 cellules
Obs. / cellule
≥ 62
28–61
6–27
2–5
< 2

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

Ecological tissue

Sample of 40 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 Hồng : 32 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 4 types (connectance 5.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
40
Connectance
0.051
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°

22,4°C

Annual rain

1 720mm

Moisture idx (CMI)

0,21

Runoff

839mm/an

PET

1 347mm

AET

1 089mm

Mean slope

10,1°

Water table

367cm

Forest

1%

Crops

22%

Urban

8%

Protected

0%

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