@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 vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://apgc.awi.de/dataset/e9b37ced-a29e-44e6-84bd-1f6b8ff1fdc2> a dcat:Dataset ;
    dct:description """Methane (CH4) production, oxidation, and emission were studied in ponds of the permafrost-affected polygonal tundra in northeast Siberia. Summer CH4 fluxes were measured with closed chambers at the margins of ponds vegetated by vascular plants and in their centers without vascular plants. Furthermore, CH4 and oxygen concentration gradients, stable carbon isotope signatures of dissolved and emitted CH4, and microbial CH4 production and CH4 oxidation were determined. \r
\r
The data files give the basic field and laboratory data on five ponds in the northeast Siberian Arctic tundra on Samoylov.\r
The files contain water and soil temperature data of the ponds, methane fluxes, measured with closed chambers in the centres without vascular plants and the margins with vascular plants, the contribution of plant mediated fluxes on total methane fluxes, the gas concentrations (methane and dissolved inorganic carbon, oxygen) in the soil and the water column of the ponds, microbial activities (methane production, methane oxidation, aerobic and anaerobic carbon dioxide production), total carbon pools in the different horizons of the bottom soils, soil bulk density, soil substance density, and soil porosity.""" ;
    dct:identifier "DOI: 10.1594/PANGAEA.853641" ;
    dct:issued "2023-03-28T12:34:48.580433"^^xsd:dateTime ;
    dct:modified "2024-04-09T12:42:13.627076"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "MULTIPOINT ((126.4949 72.3736), (126.4930 72.3734), (126.4936 72.3735), (126.4854 72.3709), (126.4887 72.3707))"^^gsp:wktLiteral ] ;
    dct:title "Methane fluxes, soil gas profiles and microbial activities in ponds at Samoylov, 2002 & 2013" ;
    owl:versionInfo "1.0" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Christian Knoblauch" ;
            vcard:hasEmail <mailto:Christian.Knoblauch@uni-hamburg.de> ] ;
    dcat:distribution <https://apgc.awi.de/dataset/e9b37ced-a29e-44e6-84bd-1f6b8ff1fdc2/resource/7d95bff7-7fb7-4dd1-8027-adb3cb4acc16>,
        <https://apgc.awi.de/dataset/e9b37ced-a29e-44e6-84bd-1f6b8ff1fdc2/resource/c7ac1b48-5c79-41a0-bafc-915108013cea> ;
    dcat:keyword "Arctic Tundra",
        "Biogeochemistry",
        "Methane",
        "Permafrost" ;
    dcat:landingPage <https://doi.pangaea.de/10.1594/PANGAEA.853641> .

<https://apgc.awi.de/dataset/e9b37ced-a29e-44e6-84bd-1f6b8ff1fdc2/resource/7d95bff7-7fb7-4dd1-8027-adb3cb4acc16> a dcat:Distribution ;
    dct:description "Taken from: Knoblauch, C et al. (2015): Regulation of methane production, oxidation, and emission by vascular plants and bryophytes in ponds of the northeast Siberian polygonal tundra. Journal of Geophysical Research: Biogeosciences, 120(12), 2525-2541, https://doi.org/10.1002/2015JG003053" ;
    dct:format "JPEG" ;
    dct:issued "2023-03-28T12:42:35.712045"^^xsd:dateTime ;
    dct:modified "2023-03-28T12:42:35.696411"^^xsd:dateTime ;
    dct:title "Preview" ;
    dcat:accessURL <https://apgc.awi.de/dataset/e9b37ced-a29e-44e6-84bd-1f6b8ff1fdc2/resource/7d95bff7-7fb7-4dd1-8027-adb3cb4acc16/download/preview.jpg> ;
    dcat:byteSize "55753"^^xsd:nonNegativeInteger ;
    dcat:mediaType "image/jpeg" .

<https://apgc.awi.de/dataset/e9b37ced-a29e-44e6-84bd-1f6b8ff1fdc2/resource/c7ac1b48-5c79-41a0-bafc-915108013cea> a dcat:Distribution ;
    dct:description "ZIP file containing all datasets as tab-delimited text" ;
    dct:format "ZIP" ;
    dct:issued "2023-03-28T12:36:25.159629"^^xsd:dateTime ;
    dct:modified "2023-03-28T12:36:25.392717"^^xsd:dateTime ;
    dct:title "Knoblauch_2015.zip" ;
    dcat:accessURL <https://doi.pangaea.de/10.1594/PANGAEA.853641?format=zip> .

<https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> a foaf:Agent ;
    foaf:name "PANGAEA" .

<https://doi.pangaea.de/10.1594/PANGAEA.853641> a foaf:Document .