Ontologia

HydroBASINS lev08 watershed · #4080992570

Bassin de Ngòi Phát

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 4 administrative regions : Bát Xát, Phong Thổ, Sa Pa, Tam Đường

Pfafstetter: 43684302

Sub-basin area

533,6km²

Upstream area

533,6km²

Discharge

17,84m³/s

Mean elev.

1 392m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Hồng 红河346 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

  • Bát Xát
    Lào Cai · Vietnam
    509.5 km²
    95.7% of basin
  • Sa Pa
    Lào Cai · Vietnam
    22.0 km²
    4.1% of basin
  • Tam Đường
    Lai Châu · Vietnam
    0.4 km²
    0.1% of basin
  • Phong Thổ
    Lai Châu · Vietnam
    0.4 km²
    0.1% of basin

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

Species present

450 distinct species · 701 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

701 obs · 13 cellules
Obs. / cellule
≥ 341
112–340
47–111
15–46
< 15

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

Ecological tissue

Sample of 29 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 Ngòi Phát : 23 espèces reliées par 28 interactions GloBI sur 5 types (connectance 6.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
28
Connectance
0.069
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°

17,2°C

Annual rain

1 856mm

Moisture idx (CMI)

0,38

Runoff

1 047mm/an

PET

1 130mm

AET

974mm

Mean slope

21,7°

Water table

769cm

Forest

24%

Crops

10%

Urban

1%

Protected

0%

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