Ontologia

HydroBASINS lev08 watershed · #4081022120

Bassin de Nậm Hua

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 7 administrative regions : Mường Chà, Mường Ảng, Sông Mã, Thuận Châu, Tuần Giáo +2

Pfafstetter: 44102098

Sub-basin area

1 411,5km²

Upstream area

1 411,5km²

Discharge

32,9m³/s

Mean elev.

933m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Mã467 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

  • Thuận Châu
    Sơn La · Vietnam
    461.6 km²
    32.8% of basin
  • Mường Ảng
    Điện Biên · Vietnam
    443.2 km²
    31.5% of basin
  • Tuần Giáo
    Điện Biên · Vietnam
    403.2 km²
    28.6% of basin
  • Điện Biên Đông
    Điện Biên · Vietnam
    77.3 km²
    5.5% of basin
  • Sông Mã
    Sơn La · Vietnam
    16.1 km²
    1.1% of basin
  • Điện Biên
    Điện Biên · Vietnam
    5.9 km²
    0.4% of basin
  • Mường Chà
    Điện Biên · Vietnam
    0.4 km²
    0.0% of basin

1 intersecting protected areas

  • Copia

    IUCN Not Reported

    Nature Reserve

    47.04 km² overlap

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

Species present

60 distinct species · 210 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

210 obs · 12 cellules
Obs. / cellule
≥ 56
40–55
28–39
16–27
< 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 4 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 Nậm Hua : 4 espèces reliées par 3 interactions GloBI sur 1 type (connectance 50.0%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
3
Connectance
0.500
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°

20,0°C

Annual rain

1 762mm

Moisture idx (CMI)

0,23

Runoff

738mm/an

PET

1 363mm

AET

1 011mm

Mean slope

17,8°

Water table

632cm

Forest

3%

Crops

1%

Urban

3%

Protected

0%

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