Database Report

Dutch Military Ranges Vegetation Database (DUMIRA)

Iris de Ronde & Rense Haveman

GIVD Database ID: EU-NL-003	Last update: 2025-11-25
Dutch Military Ranges Vegetation Database (DUMIRA)	Web address:
Database manager(s): Iris de Ronde (Iris.deronde@derondehaveman.nl); Rense Haveman (Rense.Haveman@derondehaveman.nl)
Owner: Central Government Real Estate Agency, Ministry of the Interior and Kingdom relations
Scope: Vegetation plot database of military ranges in the Netherlands, mainly grasslands, heathlands and acidophilous forests. Also scrubs and salt marshes are well represented.
Abstract:
Availability: according to a specific agreement	Online upload: no	Online search: no
Database format(s): TURBOVEG	Export format(s): TURBOVEG
Plot type(s): normal plots, time series	Plot-size range (m²): 0.01 to 54909
Non-overlapping plots: 13046	Estimate of existing plots: 13046	Completeness: 100%	Status: completed and continuing
Total no. of plot observations: 13587	Number of sources (biblioreferences, data collectors): 1	Valid taxa: 1995
Countries (%): NL: 100
Formations: Forest: 12% = Semi-aquatic: 1%; Terrestrial: 11% // Non Forest: 92% = Aquatic: 1% (Haline water: 0%; Fresh water: 1%); Semi-aquatic: 8% (Haline water: 2%; Fresh water: 7%); Terrestrial: 83% (Non arctic-alpin: 83% [Natural: 20%; Semi-natural: 61%; Anthropogenic: 2%])
Guilds: all vascular plants: 100%; bryophytes (terricolous or aquatic): 75%; lichens (terricolous or aquatic): 25%
Plot size categories (%): < 1 m2: 1%; 1-10 m2: 65%; 10-100 m2: 33%; 100-1000 m2: 1%; 1000-10000 m2: 0%; >= 10000 m2: 0%; unknowmn: 0%;
Environmental data (%): altitude: 0; slope aspect: 43; slope inclination: 23; microrelief: 0; surface cover other than plants (open soil, litter, bare rock etc.): 15; other soil attributes: 0; soil pH: 0; land use categories: 0; soil depth: 0
Performance measure(s): presence/absence only: 0%; cover: 100%; number of individuals: 0%; measurements like diameter or height of trees: 0%; biomass: 0%; other: 0%
Geographic localisation: GPS coordinates (precision 25 m or less): 90%; point coordinates less precise than GPS, up to 1 km: 7%; small grid (not coarser than 10 km): 1%; political units or only on a coarser scale ( above 10 km): 3%
Sampling periods: before 1920: 0%; 1920-1929: 0%; 1930-1939: 0%; 1940-1949: 0%; 1950-1959: 0%; 1960-1969: 0%; 1970-1979: 0%; 1980-1989: 0%; 1990-1999: 9%; 2000-2009: 60%; 2010-2019: 31%; unknown: 0%
Information as of 2026-05-19; further details and future updates available from http://www.givd.info/ID/EU-NL-003

Iris de Ronde* (Iris.deronde@derondehaveman.nl)
De Ronde & Haveman, NETHERLANDS
Rense Haveman (Rense.Haveman@derondehaveman.nl)
De Ronde & Haveman, NETHERLANDS
* corresponding author