Ontologia

HydroBASINS lev08 watershed · #4081002520

Bassin de Sông Bắc Giang

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 11 administrative regions : Bình Gia, Bạch Thông, Bắc Sơn, Chợ Mới, Na Rì +6

Pfafstetter: 43664280

Sub-basin area

2 571km²

Upstream area

2 571,2km²

Discharge

49,41m³/s

Mean elev.

450m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 平而河1651 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

11 dept-equivalent regions (GADM L2)

3 more

2 intersecting protected areas

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

Species present

325 distinct species · 600 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

600 obs · 40 cellules
Obs. / cellule
≥ 190
41–189
14–40
3–13
< 3

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

Ecological tissue

Sample of 31 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 Bắc Giang : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 4.9%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
23
Connectance
0.050
Patrimoniales
2
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°

21,2°C

Annual rain

1 586mm

Moisture idx (CMI)

0,17

Runoff

622mm/an

PET

1 303mm

AET

1 066mm

Mean slope

13,0°

Water table

437cm

Forest

3%

Crops

12%

Urban

1%

Protected

0%

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