HydroBASINS lev08 watershed · #4081102660
Bassin de แม่น้ำน่าน
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 11 administrative regions : Bang Mun Nak, Chon Daen, Chumsaeng, K. Dong Charoen, Muang Phetchabun +6
Sub-basin area
1 557,7km²
Upstream area
33 400,5km²
Discharge
295,66m³/s
Mean elev.
83m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de คลองทับคล้อ840 km²
- Bassin de คลองห้วยเกตุ313 km²
11 dept-equivalent regions (GADM L2)
- 594.8 km²38.3% of basin
- 385.4 km²24.8% of basin
- 148.6 km²9.6% of basin
- 126.0 km²8.1% of basin
- 121.8 km²7.8% of basin
- 70.8 km²4.6% of basin
- 63.1 km²4.1% of basin
- 37.0 km²2.4% of basin
3 moreFull L2 list
- Muang Phetchabun2.5 km² · 0.2%
- Nong Phai1.6 km² · 0.1%
- Pho Prathap Chan0.8 km² · 0.1%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
254 distinct species · 2 012 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de แม่น้ำน่าน : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,8°C
Annual rain
1 201mm
Moisture idx (CMI)
-0,33
Runoff
169mm/an
PET
1 794mm
AET
989mm
Mean slope
1,6°
Water table
118cm
Forest
5%
Crops
56%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)