Ontologia

HydroBASINS lev08 watershed · #4080015550

Bassin de Sông Thạch Hãn

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 across 2 countries : A Lưới, Cam Lộ, Gio Linh, Hướng Hóa, Hải Lăng +6

4% lakePfafstetter: 44105360

Sub-basin area

2 695,4km²

Upstream area

2 695,4km²

Discharge

120,79m³/s

Mean elev.

292m

Administrative coverage

11 dept-equivalent regions (GADM L2)

3 more

4 intersecting protected areas

  • Dakrong

    IUCN Not Reported

    Nature Reserve

    356.62 km² overlap

  • Bac Huong Hoa

    IUCN Not Reported

    Nature Reserve

    112.61 km² overlap

  • Phong Dien

    IUCN IV

    Nature Reserve

    14.76 km² overlap

  • Xe Xap

    IUCN VI

    National Protected Area

    5.36 km² overlap

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

Species present

737 distinct species · 2 508 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 508 obs · 51 cellules
Obs. / cellule
≥ 503
106–502
37–105
16–36
< 16

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 Thạch Hãn : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 4 types (connectance 4.5%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
35
Connectance
0.045
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°

24,1°C

Annual rain

2 285mm

Moisture idx (CMI)

0,38

Runoff

1 367mm/an

PET

1 401mm

AET

1 146mm

Mean slope

9,9°

Water table

370cm

Forest

31%

Crops

20%

Urban

4%

Protected

0%

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