Ontologia

HydroBASINS lev08 watershed · #4081022010

Bassin de Sông Lục Nam

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 5 administrative regions : Chí Linh, Lục Nam, Lục Ngạn, Sơn Động, Đông Triều

Pfafstetter: 43670844

Sub-basin area

294,3km²

Upstream area

294,3km²

Discharge

6,77m³/s

Mean elev.

140m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Lục Nam492 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

9 distinct species · 13 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

13 obs · 5 cellules
Obs. / cellule
≥ 6
6–5
2–5
2–1
< 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 2 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 Lục Nam : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
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°

23,1°C

Annual rain

1 583mm

Moisture idx (CMI)

0,20

Runoff

729mm/an

PET

1 263mm

AET

1 034mm

Mean slope

10,2°

Water table

372cm

Forest

5%

Crops

10%

Urban

0%

Protected

1%

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