Ontologia

HydroBASINS lev08 watershed · #4081010080

Bassin de Sông Cầu

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 10 administrative regions : Ba Bể, Bạch Thông, Chợ Mới, Chợ Đồn, Na Rì +5

Pfafstetter: 43670899

Sub-basin area

1 225,5km²

Upstream area

1 225,6km²

Discharge

26,59m³/s

Mean elev.

412m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Cầu91 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

10 dept-equivalent regions (GADM L2)

2 more

1 intersecting protected areas

  • Kim Hy

    IUCN Not Reported

    Nature Reserve

    4.61 km² overlap

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

Species present

202 distinct species · 455 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

455 obs · 23 cellules
Obs. / cellule
≥ 250
36–249
14–35
2–13
< 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 17 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 Cầu : 17 espèces reliées par 13 interactions GloBI sur 3 types (connectance 9.6%, filtre Serrano α=0.2).

Espèces affichées
17
Interactions affichées
13
Connectance
0.096
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°

21,5°C

Annual rain

1 696mm

Moisture idx (CMI)

0,23

Runoff

741mm/an

PET

1 303mm

AET

1 067mm

Mean slope

15,1°

Water table

508cm

Forest

2%

Crops

29%

Urban

2%

Protected

0%

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