Ontologia

HydroBASINS lev08 watershed · #2080380800

Bassin de Nederrijn

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 46 administrative regions across 2 countries : Alblasserdam, Apeldoorn, Arnhem, Barendrecht, Berg en Dal +41

8% lakePfafstetter: 23261017

Sub-basin area

1 375,3km²

Upstream area

160 475,7km²

Discharge

2 419,38m³/s

Mean elev.

13m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

46 dept-equivalent regions (GADM L2)

38 more

30 intersecting protected areas

  • NNN-GE

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    240.90 km² overlap

  • Veluwe

    IUCN IV

    Nature Conservation Act

    179.26 km² overlap

  • Veluwe

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    179.26 km² overlap

  • Veluwe

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    179.26 km² overlap

  • NNN-UT

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    120.36 km² overlap

  • Rijntakken

    IUCN IV

    Nature Conservation Act

    69.37 km² overlap

  • Rijntakken

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    69.37 km² overlap

  • National Park

    46.26 km² overlap

  • National Park

    33.66 km² overlap

21 more protected areas

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

Species present

18 539 distinct species · 7 625 544 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 625 544 obs · 41 cellules
Obs. / cellule
≥ 629 107
309 152–629 106
223 377–309 151
181 898–223 376
< 181 898

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

Ecological tissue

Sample of 39 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 Nederrijn : 33 espèces + 6 bulles famille, 87 interactions GloBI documentées sur 3 types (connectance 11.7%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
39
Interactions affichées
87
Connectance
0.117
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°

9,4°C

Annual rain

787mm

Moisture idx (CMI)

0,12

Runoff

454mm/an

PET

695mm

AET

545mm

Mean slope

0,4°

Water table

36cm

Forest

10%

Crops

11%

Urban

34%

Protected

25%

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