Nature Reserves owned by professional nature management organizations · nld
NNN-NH
- Area
- 566 km²
- IUCN cat.
- Not Assigned
- Year
- 2018
Overview
- Designation
- Nature Reserves owned by professional nature management organizations
- Established
- 2018
- Managing authority
- Ministry EZ RVO/GISCC
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
4 957 distinct species · 535 320 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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-NH : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 6 types (connectance 14.4%, filtre Serrano α=0.2). 8 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 · 50 lakes · 59 rivers
Hydrology metrics for this exact territory
Stream length here
98,8km
Lake surface here
51,96km²
Basins crossed
7
Max stream order
4
Max drainage
1 905km²
Discharge in basins
4,6m³/s
Mean precip.
789mm/an
Mean T°
9,1°C
Moisture idx
0,24
Max snow
14%
Mean runoff
489mm/an
Mean elev. (basins)
1m
Watersheds crossing here
- Bassin de Ringslootsub-area1 905,4 km²overlap288.14 km²51%
- Bassin de Beemsterringvaartsub-area794,8 km²overlap124.20 km²22%
- Bassin de Vechtsub-area371,4 km²overlap68.12 km²12%
- Bassin de Ringvaart van de Haarlemmermeerpoldersub-area1 024,3 km²overlap40.18 km²7%
- Bassin de Grote Valkse beeksub-area1 668,1 km²overlap31.71 km²6%
- Bassin de Naardertrekvaartsub-area23 km²overlap8.02 km²1%
- Basin #23230sub-area26,5 km²overlap3.35 km²1%
Lakes (50, top by area)
- Ijsselmeerarea1 962,7 km²avg depth4.5 m
- Westeinderplassenarea8,6 km²avg depth1.5 m
- Loosdrechtsche Plassenarea7,8 km²avg depth1.8 m
- Amstelmeerarea6,4 km²avg depth1.4 m
- Alkmaardermeerarea5,8 km²avg depth1.3 m
- Wijde Blikarea2,3 km²avg depth1.3 m
- Spiegel- en Blijkpolderplasarea1,8 km²avg depth1.3 m
- Loenderveensche Plasarea1,7 km²avg depth1.2 m
- Breukeleveensche Plasarea1,4 km²avg depth1.1 m
41 more lakes
- Mooie Nelarea1,2 km²avg depth1.0 m
- Het Nieuwe Meerarea1,1 km²avg depth1.1 m
- Lac 1329171area0,9 km²avg depth1.7 m
- Lac 1330009area0,9 km²avg depth1.9 m
- Lac 1327024area0,8 km²avg depth1.9 m
- Lac 1328633area0,8 km²avg depth1.5 m
- Lac 1329733area0,8 km²avg depth1.6 m
- Lac 1328872area0,7 km²avg depth1.6 m
- Lac 1327813area0,7 km²avg depth1.4 m
- Lac 1329539area0,6 km²avg depth1.7 m
- Lac 1329631area0,5 km²avg depth2.2 m
- Lac 1330030area0,5 km²avg depth1.9 m
- Lac 1329982area0,4 km²avg depth1.6 m
- Lac 1329549area0,4 km²avg depth2.1 m
- Lac 1329595area0,4 km²avg depth2.6 m
- Lac 1329814area0,4 km²avg depth1.3 m
- Lac 1327599area0,4 km²avg depth1.6 m
- Lac 1327310area0,4 km²avg depth1.8 m
- Lac 1329061area0,4 km²avg depth1.3 m
- Lac 1329603area0,3 km²avg depth1.6 m
- Lac 1328964area0,3 km²avg depth1.2 m
- Lac 1329931area0,3 km²avg depth1.6 m
- Lac 1329042area0,3 km²avg depth1.0 m
- Lac 1328597area0,2 km²avg depth1.2 m
- Lac 1329662area0,2 km²avg depth1.5 m
- Lac 1329781area0,2 km²avg depth1.2 m
- Lac 1329870area0,2 km²avg depth1.1 m
- Lac 1329466area0,2 km²avg depth1.8 m
- Lac 1328812area0,2 km²avg depth1.2 m
- Lac 1329108area0,2 km²avg depth1.1 m
- Lac 1326335area0,2 km²avg depth1.4 m
- Lac 1330108area0,2 km²avg depth1.5 m
- Lac 1326332area0,2 km²avg depth1.4 m
- Lac 1328926area0,2 km²avg depth1.0 m
- Lac 1328965area0,2 km²avg depth1.3 m
- Lac 1329041area0,2 km²avg depth1.4 m
- Lac 1327629area0,2 km²avg depth1.7 m
- Lac 1329750area0,2 km²avg depth1.3 m
- Lac 1329649area0,1 km²avg depth1.2 m
- Lac 1327572area0,1 km²avg depth1.4 m
- Lac 1328323area0,1 km²avg depth1.1 m
Rivers / streams (59, ord ≥ 4)
- Muyeveldsche Weteringord 2len here9.97 km71%total14 km
- Wijde Slootord 1len here6.83 km47%total14 km
- Hilversumsch Kanaalord 1len here6.52 km87%total8 km
- Ringvaart van de Haarlemmermeerpolderord 3len here6.36 km20%total31 km
- Noordergansslootord 2len here5.86 km96%total6 km
- 's Gravelandse Vaartord 1len here5.04 km84%total6 km
- Van Ewijcksvaartord 1len here4.19 km62%total7 km
- Waardkanaalord 3len here3.63 km28%total13 km
- Gaaspord 1len here3.07 km24%total13 km
- Weelslootord 2len here2.98 km18%total16 km
- Meijndertslootord 2len here2.87 km40%total7 km
- Wimmenummer Vaartord 1len here2.52 km77%total3 km
47 more river segmentssorted by Strahler order + length
- Beemsterringvaartord 2len here2.35 km9%total26 km
- Noorder Buiten Spaarneord 2len here2.09 km22%total10 km
- Molenkilord 1len here1.79 km94%total2 km
- Jan-de-Boerslootord 1len here1.66 km33%total5 km
- Naardertrekvaartord 1len here1.62 km46%total4 km
- Den Oeversche Vaartord 2len here1.55 km52%total3 km
- Zwakslootord 1len here1.55 km65%total2 km
- Gouwslootord 2len here1.53 km55%total3 km
- Westeinder Dijkslootord 1len here1.48 km81%total2 km
- Noordhollandsch Kanaalord 2len here1.45 km15%total9 km
- Eijerlands Kanaalord 1len here1.44 km20%total7 km
- Noordhollandsch Kanaalord 2len here1.40 km63%total2 km
- Kees Hanssensslootord 2len here1.28 km17%total8 km
- Oosteindervaartord 1len here1.21 km28%total4 km
- Kanaal Schagen-Kolhornord 1len here1.20 km14%total9 km
- Jachthavenord 2len here1.18 km16%total7 km
- Boomervaartord 1len here1.09 km12%total9 km
- Kanaal Omval Kolhornord 1len here1.04 km15%total7 km
- Amstelord 1len here1.02 km10%total11 km
- Zijkanaal Ford 1len here0.83 km9%total9 km
- Goyergrachtord 1len here0.83 km20%total4 km
- Dieringerord 1len here0.78 km17%total5 km
- Ringslootord 2len here0.78 km3%total24 km
- Vechtord 3len here0.77 km2%total33 km
- Zijkanaal Gord 3len here0.69 km6%total11 km
- Zuidergansslootord 2len here0.61 km39%total2 km
- Huizerhoeford 4len here0.57 km7%total8 km
- Ringsloot van de Bergermeerord 2len here0.57 km11%total5 km
- Robbevaartord 2len here0.49 km6%total9 km
- Meerslootord 2len here0.42 km18%total2 km
- Broekervaartord 2len here0.41 km14%total3 km
- Christoffel Plantijngrachtord 1len here0.40 km12%total3 km
- Het Schotord 1len here0.37 km18%total2 km
- Ringvaart van de Heerhugowaardord 2len here0.37 km2%total15 km
- Ooster Egalementslootord 3len here0.35 km4%total10 km
- Kerkslootord 1len here0.33 km29%total1 km
- Molentogtord 1len here0.32 km15%total2 km
- Purmerringvaartord 1len here0.24 km16%total2 km
- Dijkstal of Banscheidslootord 2len here0.24 km3%total8 km
- Balgzandkanaalord 3len here0.19 km6%total3 km
- Nieuwe Keizersgrachtord 2len here0.16 km2%total8 km
- Ringvaart van de Wijde Wormerord 1len here0.15 km10%total2 km
- Boxweideord 1len here0.10 km4%total2 km
- De Tochtord 1len here0.03 km2%total2 km
- Westertochtord 2len here0.02 km1%total1 km
- Bleekveldslootord 1len here≈ tangenttotal6 km
- Scheidingsvlietord 1len 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
- 52.69413, 4.66710
- 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.