@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix schema: <http://schema.org/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    dct:description "The effect of increased UV-B radiation on plant stress is monitored indirectly by measuring chlorophyll fluorescence in three series of plots: Controls, plots with a filter excluding UV-B, and filter controls with a film without exclusion of UV-B. Measurements of chlorophyll fluorescence are carried out on Betula nana and Vaccinium uliginosum in a mesic dwarf shrub heath dominated by Empetrum nigrum and with B. nana and V. uliginosum as subdominant species. For further details, please refer to the newest BioBasis manual available at the website." ;
    dct:identifier "https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39" ;
    dct:issued "2026-05-20T13:14:36.620540"^^xsd:dateTime,
        "2026-05-20T16:12:50.909474"^^xsd:dateTime ;
    dct:modified "2026-05-20T16:12:50.900022"^^xsd:dateTime,
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            foaf:homepage <https://data.g-e-m.dk> ;
            foaf:name "Greenland Ecosystem Monitoring" ],
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            foaf:homepage <https://data.g-e-m.dk> ;
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    dct:title "Leaf fluorescence (discontinued)" ;
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            schema:name "University of Copenhagen (UCPH - Partner 3)" ] ;
    schema:dateModified "2026-05-20T16:12:50.900022" ;
    schema:datePublished "2020-01-01",
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    schema:description "The effect of increased UV-B radiation on plant stress is monitored indirectly by measuring chlorophyll fluorescence in three series of plots: Controls, plots with a filter excluding UV-B, and filter controls with a film without exclusion of UV-B. Measurements of chlorophyll fluorescence are carried out on Betula nana and Vaccinium uliginosum in a mesic dwarf shrub heath dominated by Empetrum nigrum and with B. nana and V. uliginosum as subdominant species. For further details, please refer to the newest BioBasis manual available at the website." ;
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    schema:license "https://creativecommons.org/licenses/by-sa/4.0/" ;
    schema:name "Leaf fluorescence (discontinued)" ;
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            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Remarks> ;
            schema:unitText "Text" ;
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            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Light> ;
            schema:unitText "μmol m-2 s-1" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Light> ],
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            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Flash> ;
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            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Flash> ],
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            schema:name "Time" ;
            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Time> ;
            schema:unitText "Hour" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Time> ],
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            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=T5+ms> ],
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            schema:description "T2= 100 μs" ;
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        [ a schema:PropertyValue ;
            schema:description "Maximum quantum efficiency" ;
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            schema:unitText "Number" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Fv%2FFm> ],
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            schema:unitText "Number" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=F4> ],
        [ a schema:PropertyValue ;
            schema:description "Brief measurement to determine likely size of Fo" ;
            schema:name "Gain" ;
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            schema:unitText "Number" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Gain> ],
        [ a schema:PropertyValue ;
            schema:description "Latitude of plot" ;
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            schema:unitText "Number" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Latitude> ],
        [ a schema:PropertyValue ;
            schema:description "Force related to the dark reactions (after Qa-)" ;
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            schema:description "Protocol used (0=default)" ;
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            schema:unitText "Number" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=Protocol> ],
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            schema:unitText "s" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=P.+Dur.(sec)> ],
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            schema:unitText "Number" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/SD1R-RF39#column=F2> ] ;
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        "BIOSPHERE",
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        "ECOSYSTEMS",
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        "TERRESTRIAL ECOSYSTEMS",
        "VEGETATION" ;
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