Ontologia

HydroBASINS lev08 watershed · #4081073170

Bassin de Sông Ngàn Sâu

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 6 administrative regions across 2 countries : Cẩm Xuyên, Hương Khê, Minh Hóa, Nakai, Thạch Hà +1

Pfafstetter: 44104029

Sub-basin area

649,1km²

Upstream area

649,3km²

Discharge

28,3m³/s

Mean elev.

231m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Ngàn Sâu139 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Ke Go

    IUCN IV

    Nature Reserve

    56.45 km² overlap

  • Nakai-Nam Teun

    IUCN II

    National Park

    14.61 km² overlap

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

Species present

73 distinct species · 97 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

97 obs · 6 cellules
Obs. / cellule
≥ 80
80–79
10–79
2–9
< 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 18 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 Ngàn Sâu : 18 espèces reliées par 12 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2).

Espèces affichées
18
Interactions affichées
12
Connectance
0.078
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°

24,1°C

Annual rain

2 321mm

Moisture idx (CMI)

0,41

Runoff

1 355mm/an

PET

1 376mm

AET

1 220mm

Mean slope

10,0°

Water table

358cm

Forest

50%

Crops

19%

Urban

3%

Protected

8%

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