HydroBASINS lev08 watershed · #4081097300
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 9 administrative regions : Bang Krathum, K. Sak Lek, Muang Phetchabun, Muang Phichit, Noen Maprang +4
Sub-basin area
1 320,3km²
Upstream area
1 320,3km²
Discharge
6,92m³/s
Mean elev.
112m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- Noen Maprang532.8 km²40.5% of basin
- 205.4 km²15.6% of basin
- 188.7 km²14.3% of basin
- 161.1 km²12.2% of basin
- Wang Pong150.2 km²11.4% of basin
- 44.2 km²3.4% of basin
- Bang Krathum27.5 km²2.1% of basin
- 4.9 km²0.4% of basin
1 moreFull L2 list
- Thap Khlo0.8 km² · 0.1%
1 intersecting protected areas
Thung Salaeng Luang
IUCN IINational Park
99.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
399 distinct species · 3 845 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 4 types (connectance 6.0%, filtre Serrano α=0.2). 6 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°
27,5°C
Annual rain
1 268mm
Moisture idx (CMI)
-0,29
Runoff
169mm/an
PET
1 786mm
AET
1 010mm
Mean slope
1,7°
Water table
106cm
Forest
9%
Crops
45%
Urban
2%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)