Concentration of n-alkanes and hydrogen isotopic compositions from modern wetland plants, soil and surface water of Nisí fen and Tenaghi Philippon
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| Format: | Dataset Open Access |
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2024
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| _version_ | 1867171044612112384 |
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| author | Ardenghi, Nicolò Mulch, Andreas McFarlin, Jamie M Sachse, Dirk Kahmen, Ansgar Niedermeyer, Eva M |
| author_facet | Ardenghi, Nicolò Mulch, Andreas McFarlin, Jamie M Sachse, Dirk Kahmen, Ansgar Niedermeyer, Eva M |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This data supporting the study Leaf wax n-alkane distribution and hydrogen isotopic fractionation in fen plant communities of two Mediterranean wetlands (Tenaghi Philippon, Nisí fen - Greece). A total of 452 samples; of these, the majority (229) were samples of fully developed leaves, collected from the apical, sun exposed sections of each plant. Similarly, 161 samples were collected from the base of the main stem (except for N. alba). All samples were collected during midday (ca 10:00 to 17:00), with mean air temperatures of 24-28°C (Nisí) and 28-29°C (TP) in summer, and 21-24°C (Nisí) and 26°C (TP) in spring in Tenaghi Philippon (TP) peatland (NE Greece) and Nisí wetland (NW Greece). Understanding of the n-alkane environmental controls and 2H-fractionation mechanisms of Mediterranean helophytic communities, as well as ascertaining the 2H-composition of their source water and its relation to the 2H-composition of precipitation. All leaf and lower stem samples come from different mature individuals of a species, sampled in close proximity, and complemented by a total of 47 soil samples collected at ca. 20 cm depth within each sampling station, from patches not directly exposed to sunlight to avoid potential 2H-fractionation bias due to intense soil water evaporation. Additionally, 10 surface water samples were collected from swamp areas in proximity of the sampling stations at both sites. δ2H values of the 10 surface water samples were obtained using LGR LWIA-24d. Delta values are given as permil deviation from VSMOW (±1‰). Leaf, stem, and soil water was extracted through cryogenic vacuum distillation and its isotopic composition was measured using a TC/EA-MS via a Conflo IV interface; expressed as permil deviation from VSMOW and the long-term external precision was found to be ±0.8‰ (standard deviation). The n-alkanes of leaf, stem and soil samples were extracted via ASE, separated by increasing polarity, analysed via GC-MS, and quantified using an external standard. The n-alkane δ2H values of leaf and stem samples were determined using GC-irMSThe overall analytical uncertainty (pooled sample size weighted standard deviation) was found to be ±1.7‰. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971718 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Concentration of n-alkanes and hydrogen isotopic compositions from modern wetland plants, soil and surface water of Nisí fen and Tenaghi Philippon Ardenghi, Nicolò Mulch, Andreas McFarlin, Jamie M Sachse, Dirk Kahmen, Ansgar Niedermeyer, Eva M aquatic plants; Date/Time of event; Elevation of event; Event label; fractionation; Gas chromatography - isotope ratio mass spectrometry (GC-IRMS); Greece; HAND; Hydrogen isotopic composition; Latitude of event; leaf waxes; Liquid water isotope analyzer (LWIA), Los Gatos Research (LGR), LWIA-24d; Longitude of event; Mediterranean; Morphological group; n-Alkane C14; n-Alkane C15; n-Alkane C16; n-Alkane C17; n-Alkane C18; n-Alkane C19; n-Alkane C20; n-Alkane C21; n-Alkane C22; n-Alkane C23; n-Alkane C24; n-Alkane C25; n-Alkane C26; n-Alkane C27; n-Alkane C28; n-Alkane C29; n-Alkane C30; n-Alkane C31; n-Alkane C32; n-Alkane C33; n-Alkane C34; n-Alkane C35; n-Alkane C36; n-Alkane C37; n-Alkane C38; n-Alkane C39; n-Alkane C40; Nisi_Fen_1; Nisi_Fen_10; Nisi_Fen_2; Nisi_Fen_3; Nisi_Fen_4; Nisi_Fen_5; Nisi_Fen_6; Nisi_Fen_7; Nisi_Fen_8; Nisi_Fen_9; Parity Isotopic Difference index; Pathway; Sample type; Sampling by hand; Season; Seasonality; Site; Species; Tenaghi_Philippon_1; Tenaghi_Philippon_2; Tenaghi_Philippon_3; Tenaghi_Philippon_4; Tenaghi_Philippon_5; Tenaghi_Philippon_6; Tenaghi_Philippon_7; Tenaghi Philippon; ThermoScientific high temperature elemental analyzer (TC/EA) and Conflo IV interface with a DeltaVPlus mass spectrometer; wetlands; δ Deuterium, leaf water, standard deviation; δ Deuterium, n-alkane C20; δ Deuterium, n-alkane C20, standard deviation; δ Deuterium, n-alkane C21; δ Deuterium, n-alkane C21, standard deviation; δ Deuterium, n-alkane C22; δ Deuterium, n-alkane C22, standard deviation; δ Deuterium, n-alkane C23; δ Deuterium, n-alkane C23, standard deviation; δ Deuterium, n-alkane C24; δ Deuterium, n-alkane C24, standard deviation; δ Deuterium, n-alkane C25; δ Deuterium, n-alkane C25, standard deviation; δ Deuterium, n-alkane C26; δ Deuterium, n-alkane C26, standard deviation; δ Deuterium, n-alkane C27; δ Deuterium, n-alkane C27, standard deviation; δ Deuterium, n-alkane C28; δ Deuterium, n-alkane C28, standard deviation; δ Deuterium, n-alkane C29; δ Deuterium, n-alkane C29, standard deviation; δ Deuterium, n-alkane C30; δ Deuterium, n-alkane C30, standard deviation; δ Deuterium, n-alkane C31; δ Deuterium, n-alkane C31, standard deviation; δ Deuterium, n-alkane C32; δ Deuterium, n-alkane C32, standard deviation; δ Deuterium, n-alkane C33; δ Deuterium, n-alkane C33, standard deviation; δ Deuterium, n-alkane C34, standard deviation; δ Deuterium, n-alkane C35; δ Deuterium, n-alkane C35, standard deviation; δ Deuterium, water This data supporting the study Leaf wax n-alkane distribution and hydrogen isotopic fractionation in fen plant communities of two Mediterranean wetlands (Tenaghi Philippon, Nisí fen - Greece). A total of 452 samples; of these, the majority (229) were samples of fully developed leaves, collected from the apical, sun exposed sections of each plant. Similarly, 161 samples were collected from the base of the main stem (except for N. alba). All samples were collected during midday (ca 10:00 to 17:00), with mean air temperatures of 24-28°C (Nisí) and 28-29°C (TP) in summer, and 21-24°C (Nisí) and 26°C (TP) in spring in Tenaghi Philippon (TP) peatland (NE Greece) and Nisí wetland (NW Greece). Understanding of the n-alkane environmental controls and 2H-fractionation mechanisms of Mediterranean helophytic communities, as well as ascertaining the 2H-composition of their source water and its relation to the 2H-composition of precipitation. All leaf and lower stem samples come from different mature individuals of a species, sampled in close proximity, and complemented by a total of 47 soil samples collected at ca. 20 cm depth within each sampling station, from patches not directly exposed to sunlight to avoid potential 2H-fractionation bias due to intense soil water evaporation. Additionally, 10 surface water samples were collected from swamp areas in proximity of the sampling stations at both sites. δ2H values of the 10 surface water samples were obtained using LGR LWIA-24d. Delta values are given as permil deviation from VSMOW (±1‰). Leaf, stem, and soil water was extracted through cryogenic vacuum distillation and its isotopic composition was measured using a TC/EA-MS via a Conflo IV interface; expressed as permil deviation from VSMOW and the long-term external precision was found to be ±0.8‰ (standard deviation). The n-alkanes of leaf, stem and soil samples were extracted via ASE, separated by increasing polarity, analysed via GC-MS, and quantified using an external standard. The n-alkane δ2H values of leaf and stem samples were determined using GC-irMSThe overall analytical uncertainty (pooled sample size weighted standard deviation) was found to be ±1.7‰. |
| title | Concentration of n-alkanes and hydrogen isotopic compositions from modern wetland plants, soil and surface water of Nisí fen and Tenaghi Philippon |
| topic | aquatic plants; Date/Time of event; Elevation of event; Event label; fractionation; Gas chromatography - isotope ratio mass spectrometry (GC-IRMS); Greece; HAND; Hydrogen isotopic composition; Latitude of event; leaf waxes; Liquid water isotope analyzer (LWIA), Los Gatos Research (LGR), LWIA-24d; Longitude of event; Mediterranean; Morphological group; n-Alkane C14; n-Alkane C15; n-Alkane C16; n-Alkane C17; n-Alkane C18; n-Alkane C19; n-Alkane C20; n-Alkane C21; n-Alkane C22; n-Alkane C23; n-Alkane C24; n-Alkane C25; n-Alkane C26; n-Alkane C27; n-Alkane C28; n-Alkane C29; n-Alkane C30; n-Alkane C31; n-Alkane C32; n-Alkane C33; n-Alkane C34; n-Alkane C35; n-Alkane C36; n-Alkane C37; n-Alkane C38; n-Alkane C39; n-Alkane C40; Nisi_Fen_1; Nisi_Fen_10; Nisi_Fen_2; Nisi_Fen_3; Nisi_Fen_4; Nisi_Fen_5; Nisi_Fen_6; Nisi_Fen_7; Nisi_Fen_8; Nisi_Fen_9; Parity Isotopic Difference index; Pathway; Sample type; Sampling by hand; Season; Seasonality; Site; Species; Tenaghi_Philippon_1; Tenaghi_Philippon_2; Tenaghi_Philippon_3; Tenaghi_Philippon_4; Tenaghi_Philippon_5; Tenaghi_Philippon_6; Tenaghi_Philippon_7; Tenaghi Philippon; ThermoScientific high temperature elemental analyzer (TC/EA) and Conflo IV interface with a DeltaVPlus mass spectrometer; wetlands; δ Deuterium, leaf water, standard deviation; δ Deuterium, n-alkane C20; δ Deuterium, n-alkane C20, standard deviation; δ Deuterium, n-alkane C21; δ Deuterium, n-alkane C21, standard deviation; δ Deuterium, n-alkane C22; δ Deuterium, n-alkane C22, standard deviation; δ Deuterium, n-alkane C23; δ Deuterium, n-alkane C23, standard deviation; δ Deuterium, n-alkane C24; δ Deuterium, n-alkane C24, standard deviation; δ Deuterium, n-alkane C25; δ Deuterium, n-alkane C25, standard deviation; δ Deuterium, n-alkane C26; δ Deuterium, n-alkane C26, standard deviation; δ Deuterium, n-alkane C27; δ Deuterium, n-alkane C27, standard deviation; δ Deuterium, n-alkane C28; δ Deuterium, n-alkane C28, standard deviation; δ Deuterium, n-alkane C29; δ Deuterium, n-alkane C29, standard deviation; δ Deuterium, n-alkane C30; δ Deuterium, n-alkane C30, standard deviation; δ Deuterium, n-alkane C31; δ Deuterium, n-alkane C31, standard deviation; δ Deuterium, n-alkane C32; δ Deuterium, n-alkane C32, standard deviation; δ Deuterium, n-alkane C33; δ Deuterium, n-alkane C33, standard deviation; δ Deuterium, n-alkane C34, standard deviation; δ Deuterium, n-alkane C35; δ Deuterium, n-alkane C35, standard deviation; δ Deuterium, water |
| url | https://doi.org/10.1594/PANGAEA.971718 |