Nature Reserves owned by professional nature management organizations · nld
NNN-UT
- Area
- 373 km²
- IUCN cat.
- Not Assigned
- Year
- 2004
Overview
- Designation
- Nature Reserves owned by professional nature management organizations
- Established
- 2004
- Managing authority
- Ministry EZ RVO/GISCC
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
10 223 distinct species · 1 260 152 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 NNN-UT : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 7 types (connectance 10.2%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology7 basins · 18 lakes · 53 rivers
Hydrology metrics for this exact territory
Stream length here
98,5km
Lake surface here
12,90km²
Basins crossed
7
Max stream order
7
Max drainage
160 476km²
Discharge in basins
215,3m³/s
Mean precip.
793mm/an
Mean T°
9,3°C
Moisture idx
0,14
Max snow
14%
Mean runoff
477mm/an
Mean elev. (basins)
11m
Watersheds crossing here
- Bassin de Grote Valkse beeksub-area1 668,1 km²overlap140.47 km²38%
- Bassin de Nederrijnsub-area1 375,3 km²overlap120.36 km²32%
- Bassin de Vechtsub-area371,4 km²overlap63.54 km²17%
- Bassin de Ringvaart van de Haarlemmermeerpoldersub-area1 024,3 km²overlap36.67 km²10%
- Bassin de Waalsub-area1 422,7 km²overlap6.76 km²2%
- Bassin de Gekanaliseerde Hollandsche IJsselsub-area386,1 km²overlap5.02 km²1%
- Bassin de Beemsterringvaartsub-area794,8 km²overlap0.52 km²0%
Lakes (18, top by area)
- Ijsselmeerarea1 962,7 km²avg depth4.5 m
- Vinkeveense Plassenarea4,6 km²avg depth0.8 m
- Zuidplasarea3,1 km²avg depth0.9 m
- Lac 1329982area0,4 km²avg depth1.6 m
- Lac 1329862area0,4 km²avg depth1.6 m
- Lac 1330622area0,4 km²avg depth1.5 m
- Lac 1331534area0,2 km²avg depth1.3 m
- Lac 1331152area0,2 km²avg depth2.5 m
- Lac 1329870area0,2 km²avg depth1.1 m
9 more lakes
- Lac 1330794area0,2 km²avg depth2.8 m
- Lac 1330979area0,2 km²avg depth1.5 m
- Lac 1331141area0,2 km²avg depth1.8 m
- Lac 1331085area0,2 km²avg depth0.9 m
- Lac 1330314area0,2 km²avg depth0.5 m
- Lac 1330509area0,2 km²avg depth1.3 m
- Lac 1330668area0,2 km²avg depth2.2 m
- Lac 1330725area0,2 km²avg depth4.6 m
- Lac 1330229area0,1 km²avg depth1.3 m
Rivers / streams (53, ord ≥ 4)
- Lekord 7len here23.42 km58%total40 km
- Bakkerskilord 7len here8.60 km27%total32 km
- Nederrijnord 7len here7.10 km13%total54 km
- Vechtord 3len here5.71 km18%total33 km
- Toegangsgeul Spakenburgord 3len here5.03 km76%total7 km
- Eemord 4len here4.87 km25%total20 km
- Kerkvaartord 2len here3.56 km28%total13 km
- Voorhavens Sluiscomplex Hagesteinord 7len here3.56 km100%total4 km
- Heiligenbergerbeekord 1len here3.48 km48%total7 km
- De Nachtord 1len here2.81 km43%total7 km
- Beverwaardsche Meerord 1len here2.54 km32%total8 km
- Biltsche Griftord 2len here1.96 km21%total9 km
41 more river segmentssorted by Strahler order + length
- Muyeveldsche Weteringord 2len here1.94 km14%total14 km
- Slaagse Weteringord 4len here1.88 km33%total6 km
- Achttienhovensche Vaartord 2len here1.70 km19%total9 km
- Woudenbergse Griftord 3len here1.68 km14%total12 km
- Middelaarse Beekord 4len here1.54 km18%total8 km
- Lingeord 2len here1.52 km11%total13 km
- Male Weteringord 4len here1.38 km35%total4 km
- Valleikanaalord 1len here1.29 km35%total4 km
- Moorsterbeekord 1len here1.29 km25%total5 km
- Lunterse Beekord 1len here1.17 km18%total6 km
- Haven Wijk bij Duurstedeord 7len here1.09 km50%total2 km
- Kromme Rijnord 1len here1.06 km12%total9 km
- Achterweteringord 1len here0.93 km6%total15 km
- Voorhavens Sluiscomplex Amerongenord 7len here0.89 km62%total1 km
- Heigraaf Maarsbergenord 1len here0.88 km25%total4 km
- Vosheuvelbeekord 3len here0.82 km23%total4 km
- Gekanaliseerde Hollandsche IJsselord 1len here0.66 km3%total23 km
- Huibertord 1len here0.62 km12%total5 km
- Stadsbuitengrachtord 1len here0.60 km7%total9 km
- Valleikanaalord 3len here0.47 km3%total14 km
- Laakord 1len here0.34 km7%total5 km
- Waalseweteringord 1len here0.34 km13%total3 km
- Nooienbeekord 2len here0.30 km3%total10 km
- Goyergrachtord 1len here0.25 km6%total4 km
- Aarkanaalord 2len here0.24 km1%total19 km
- Ameronger Weteringord 1len here0.16 km9%total2 km
- Grechtord 2len here0.13 km2%total8 km
- Kleine Lekord 1len here0.11 km5%total2 km
- Gaaspord 1len here0.10 km1%total13 km
- Zijdeweteringord 3len here0.10 km2%total6 km
- Enge IJsselord 1len here0.08 km4%total2 km
- Polderhoefse Wetering zuidord 3len here0.07 km2%total5 km
- Polsbroeker Voorweteringord 1len here0.06 km1%total10 km
- Ringslootord 1len here0.05 km1%total6 km
- De Kromord 1len here0.05 km1%total3 km
- Amsterdam-Rijnkanaalord 1len here0.04 km2%total2 km
- Korneord 1len here0.03 km0%total75 km
- Oosterlaakord 2len here0.02 km0%total6 km
- Rijnsteegslootord 1len here≈ tangenttotal5 km
- Amsterdam-Rijnkanaalord 1len here≈ tangenttotal3 km
- Hooilandse Weteringord 2len here≈ tangenttotal2 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 52.17272, 5.10892
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.