Description: The stage of bud burst has been measured from 1988 onwards on several tree species in different areas across the Netherlands to record the phenology of the trees. The state of bud burst is visually assessed twice a week in spring (beginning of April to end of May).
Keywords: bud burst trees plant phenology ecology

Description: Dendrometers op 6 locaties op de Veluwe. Zowel punt- als banddendrometers. 4-8 bomen per locatie gemonitord. Locaties zijn: Pijpebrandje, Loobos, Riemstruiken, 't Leesten, Nieuw Milligen en Motketel. Bomensoorten gemonitord: Grove Den, Zomereik, Beuk en Douglasspar. Gemeten sinds 2008, met een meetfrequentie van 1u tot 15min.
Keywords: dendrometer dbh

Description: Onderzoek naar de waterhuishouding in bos en heide. Meetopstellingen voor meten van verdamping, bodemvocht, neerslag, meteorologie, drukhoogte, doorval metingen (dichtheid bladerdek), dendrometers en lysimeters. Locaties waar meetopstellingen komen: Loobos, Deelerwoud, Speulderbos, Edese bos en Terlet. Onderzoek in een consortium met partners: Stellarspark, KWR, Provincie Gelderland, Waterschappen, Vitens.
Keywords: bodemvocht hydrologie droogte lysimeter dendrometer neerslag

Description: Ongoing pressures on global biodiversity require conservation action that is not possible without effective biomonitoring. Terrestrial vertebrate surveys are commonlyperformed using camera traps, a time-intensive method known to miss many smallor arboreal species and birds. Recent advances have shown airborne eDNA to be apotentially suitable technique to more effectively monitor vertebrate communitiesin a time- and cost-effective manner. Here, we test whether commercially availableair samplers that collect air particles 24/7 during a 1-week period can be used to de-tect the presence of vertebrates through airborne eDNA. The results are comparedto camera trap records at three locations with differing habitats in the Netherlands.Simultaneous sampling with three different air samplers for 3 weeks resulted in detec-tion of 154 vertebrate taxa, of which the majority were birds or mammals (113 and33 species, respectively), along with four fish and four amphibian species. All speciesobserved using camera traps were also retrieved via airborne eDNA, although not onevery day of sampling. The Burkard spore trap, used routinely for pollen monitoring,showed the highest number of vertebrate species, and only in three samples when amammal species was detected using a camera trap it remained undetected via eDNA.We also detected unique species at the three locations using airborne eDNA, indica-tive of the habitat in which they were living. However, we also detected species thatwe could not account for. The multitude of species found using airborne eDNA com-pared to camera traps indicate the sensitivity of the method; however, subsequentstudies should prioritize validation of these findings through alternative biomonitor-ing approaches.
Keywords: airborne edna biodiversity camera traps monitoring terrestrial ecology

Description: Inputdata for LandClim simulations performed for: The landscape-level effect of individual-owner adaptation to climate change in Dutch forests Hengeveld, G.M., Didion, M., Clerkx, S. et al. The landscape-level effect of individual-owner adaptation to climate change in Dutch forests. Reg Environ Change 15, 1515–1529 (2015). https://doi.org/10.1007/s10113-014-0718-5 https://doi.org/10.1007/s10113-014-0718-5
Keywords: forest landscape model

Description: At the Loobos station (MAQ-Observations.nl) we measure meteorological variables (short and longwave radiation, incoming and upgoing, PAR, phenocam) temperature, wind speed, direction, humidity), fluxes of sensible heat and latent heat (evaporation), carbon dioxide, ozone and volatile organic compounds. These continuous data have a 30-minute time resolution or more frequent. The observations are done in and around a tower in the forest. The meteorological and flux measurements are representative over a footprint of several hundreds of meters. Additionally, several supporting datasets are available: LAI, forest inventories, tree cores, soil inventory (C & N content), foliar samples (area, mass, nutrients). The dataset starts in 2021. A heritage 1996-2021 is available too, contact the contact person.
Keywords: meteorology carbon soil air quality forest inventory

Description: Landelijke luchtkwaliteitsmetingen door Rijksinstituut voor Volksgezondheid en Milieu (RIVM). Gemeten componenten zijn: Stikstofmonoxide (NO), Stikstofdioxide (NO2), Ozon (O3), Fijn stof (PM10), Fijn stof (PM2.5), Ammoniak (NH3).
Keywords: luchtkwaliteit rivm no2 no nh3

Description: Meetnet van dagvlinders, nachtvlinders en libellen van de Vlinderstichting. Elke vier weken monitoring van meetpunten en transecten. Bevat historische, beëindigde en actieve metingen. Vanaf 1990, lopend tot 2025. Onderdeel van het Netwerk Ecologische Monitoring (NEM).
Keywords: dagvlinders nachtvlinders ndff libellen netwerk ecologische monitoring

Description: Long-term monitoring of key state variables of forest physiology, soil physics and chemistry, hydrology and atmosphere. These data are used at ITC to develop remote sensing measurement techniques. Measured parameters are: evaporation, leaf wetness, transpiration, water potential, rainfall interception, dew, growth, temperature, canopy light transmission (to calculate LAI), microwaves and SIF (solar-induced chlorophyll fluorescence).
Keywords:

Description: Landelijk Meetnet Grondwaterkwaliteit met filters op 2 verschillende dieptes (10 en 25m). 1980-heden. Bemonsteringscyclus van 1 jaar. Meten de volgende parameters: - Al - As - Ba - Ca - Cd - Cl - Cr - Cu - DOC - EC_lab - F - Fe - pH_lab - K - Mg - Mn - NH4_N - NO3_N - Na - Ni - PTOT_P - Pb - SO4 - Sr - Zn - O2_5min_veld - T_5min_veld - EC_5min_veld - SH_veld (stijgingshoogte) - pH_5min_veld - HCO3_veld
Keywords: grondwater waterkwaliteit landelijk meetnet

Description: Grondwaterkwaliteit monitoring van diep grondwater. Parameters: Al, As, Ba, Ca, Cd, Cl, Cr, Cu, DOC, EC_lab, F, Fe, pH_lab, K, Mg, Mn, NH4_N, NO3_N, Na, Ni, PTOT_P, Pb, SO4, Sr, Zn, O2_5min_veld, T_5min_veld, EC_5min_veld, SH_veld (stijgingshoogte), pH_5min_veld, HCO3_veld. Verdichting van het Landelijk Meetnet Grondwaterkwaliteit (LMG). Data aangeleverd aan Informatiehuis Water, binnenkort ook beschikbaar in de Basisregistratie Ondergrond (BRO).
Keywords: grondwater waterkwaliteit provinciaal meetnet