Ontologia

HydroBASINS lev08 watershed · #4081051050

Bassin de Sông Hiếu

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 : Như Xuân, Quế Phong, Quỳ Châu, Thường Xuân, Xamtay

Pfafstetter: 44104048

Sub-basin area

589,3km²

Upstream area

589,3km²

Discharge

15,1m³/s

Mean elev.

521m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Hiếu38 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Western Nghe An

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    586.32 km² overlap

  • Pu Hoat

    IUCN Not Reported

    Nature Reserve

    147.57 km² overlap

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

Species present

104 distinct species · 147 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

147 obs · 8 cellules
Obs. / cellule
≥ 130
130–129
3–129
3–2
< 3

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

Ecological tissue

Sample of 17 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 Hiếu : 14 espèces reliées par 12 interactions GloBI sur 3 types (connectance 8.8%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
12
Connectance
0.088
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°

21,9°C

Annual rain

1 418mm

Moisture idx (CMI)

0,05

Runoff

807mm/an

PET

1 347mm

AET

995mm

Mean slope

15,4°

Water table

524cm

Forest

29%

Crops

10%

Urban

0%

Protected

0%

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