Ontologia

HydroBASINS lev08 watershed · #4081081980

Bassin de ลำน้ำสาน

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 : Botene, Dan Sai, Phu Rua, Tha Li, Wang Saphung

Pfafstetter: 44279406

Sub-basin area

826,9km²

Upstream area

826,9km²

Discharge

11,39m³/s

Mean elev.

784m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Phu Luang

    IUCN Ia

    Wildlife Sanctuary

    199.04 km² overlap

  • Phu Rua

    IUCN II

    National Park

    93.48 km² overlap

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

Species present

734 distinct species · 1 734 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 734 obs · 19 cellules
Obs. / cellule
≥ 642
523–641
58–522
25–57
< 25

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

Ecological tissue

Sample of 35 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 ลำน้ำสาน : 30 espèces reliées par 30 interactions GloBI sur 4 types (connectance 5.0%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
30
Connectance
0.050
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°

23,4°C

Annual rain

1 165mm

Moisture idx (CMI)

-0,30

Runoff

412mm/an

PET

1 673mm

AET

965mm

Mean slope

7,6°

Water table

373cm

Forest

59%

Crops

15%

Urban

1%

Protected

36%

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