Ontologia

HydroBASINS lev08 watershed · #4081007960

Bassin · #4081007960

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 : Mù Căng Chải, Sa Pa, Than Uyên, Tân Uyên, Văn Bàn

Pfafstetter: 43685066

Sub-basin area

327,5km²

Upstream area

327,5km²

Discharge

10,39m³/s

Mean elev.

1 002m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nậm Mu238 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

  • Than Uyên
    Lai Châu · Vietnam
    167.6 km²
    51.3% of basin
  • Tân Uyên
    Lai Châu · Vietnam
    146.6 km²
    44.9% of basin
  • Mù Căng Chải
    Yên Bái · Vietnam
    7.9 km²
    2.4% of basin
  • Văn Bàn
    Lào Cai · Vietnam
    3.5 km²
    1.1% of basin
  • Sa Pa
    Lào Cai · Vietnam
    1.1 km²
    0.3% of basin

2 intersecting protected areas

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

Species present

113 distinct species · 190 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

190 obs · 8 cellules
Obs. / cellule
≥ 48
48–47
41–47
33–40
< 33

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

Ecological tissue

Sample of 26 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 · #4081007960 : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 3 types (connectance 7.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
25
Connectance
0.077
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°

19,0°C

Annual rain

1 856mm

Moisture idx (CMI)

0,33

Runoff

962mm/an

PET

1 224mm

AET

1 012mm

Mean slope

18,1°

Water table

599cm

Forest

6%

Crops

0%

Urban

3%

Protected

0%

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