Ontologia

HydroBASINS lev08 watershed · #4081100330

Bassin de Sông A Sáp

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 across 2 countries : A Lưới, Kaleum, Phong Điền, Samuoi, Ta Oi

Pfafstetter: 44240299

Sub-basin area

839,5km²

Upstream area

839,5km²

Discharge

39,25m³/s

Mean elev.

865m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de ເຊກອງ9 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Xe Xap

    IUCN VI

    National Protected Area

    382.50 km² overlap

  • Phong Dien

    IUCN IV

    Nature Reserve

    6.38 km² overlap

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

Species present

185 distinct species · 348 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

348 obs · 15 cellules
Obs. / cellule
≥ 223
31–222
8–30
6–7
< 6

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

Ecological tissue

Sample of 20 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 A Sáp : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 19 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
19
Connectance
0.100
Patrimoniales
1
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

2 799mm

Moisture idx (CMI)

0,50

Runoff

1 475mm/an

PET

1 383mm

AET

1 174mm

Mean slope

16,0°

Water table

572cm

Forest

75%

Crops

2%

Urban

1%

Protected

46%

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