HydroBASINS lev08 watershed · #4080009580
Bassin de 九圩港
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 1 administrative regions : Nantong
Sub-basin area
767,2km²
Upstream area
767,2km²
Discharge
9,23m³/s
Mean elev.
5m
Species present
249 distinct species · 1 032 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 九圩港 : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 9.0%, filtre Serrano α=0.2). 3 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°
14,8°C
Annual rain
1 031mm
Moisture idx (CMI)
0,07
Runoff
346mm/an
PET
954mm
AET
871mm
Mean slope
0,0°
Water table
1cm
Forest
1%
Crops
61%
Urban
19%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)