Ontologia

HydroBASINS lev08 watershed · #4080986930

Bassin de Sông Miện

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 across 2 countries : Bắc Mê, Hà Giang, Quản Bạ, Vị Xuyên, Wenshan Zhuang and Miao +2

Pfafstetter: 43682800

Sub-basin area

2 342,7km²

Upstream area

2 342,7km²

Discharge

71,08m³/s

Mean elev.

1 080m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Lô1743 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Phong Quang

    IUCN IV

    Nature Reserve

    57.83 km² overlap

  • Bat Dai Son

    IUCN Not Reported

    Nature Reserve

    51.92 km² overlap

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

Species present

1 149 distinct species · 2 439 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 439 obs · 50 cellules
Obs. / cellule
≥ 516
126–515
37–125
17–36
< 17

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

Ecological tissue

Sample of 14 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 Miện : 14 espèces reliées par 9 interactions GloBI sur 3 types (connectance 9.9%, filtre Serrano α=0.2).

Espèces affichées
14
Interactions affichées
9
Connectance
0.099
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°

18,6°C

Annual rain

1 466mm

Moisture idx (CMI)

0,15

Runoff

933mm/an

PET

1 230mm

AET

995mm

Mean slope

17,8°

Water table

544cm

Forest

11%

Crops

17%

Urban

1%

Protected

11%

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