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• W2115004402 endingPage "2399" @default.
• W2115004402 startingPage "2385" @default.
• W2115004402 abstract "Abstract. Stable isotopologues of CO2, such as 13CO2 and C18OO, have been used to study the CO2 exchange between land and atmosphere. The advent of new measuring techniques has allowed near-continuous measurements of stable isotopes in the air. These measurements can be used with micrometeorological techniques, providing new tools to investigate the isotope exchange in ecosystems. The objectives of this study were to evaluate the use of the isotope flux ratio method (IFR) near the forest floor of a temperate deciduous forest and to study the temporal dynamics of δ18O of CO2 flux near the forest floor by comparing IFR estimates with estimates of δ18O of net soil CO2 flux provided by an analytical model. Mixing ratios of 12C16O2, 13CO2 and C16O18O were measured within and above a temperate deciduous forest, using the tunable diode laser spectroscopy technique. The half-hourly compositions of the CO2 flux near the forest floor (δ13CF and δ18OF) were calculated by IFR and compared with estimates provided by a modified Keeling plot technique (mKP) and by a Lagrangian dispersion analysis (WT analysis). The mKP and IFR δ18OF estimates showed good agreement (slope = 1.03 and correlation, R2 = 0.80). The δ13CF estimates from the two methods varied in a narrow range of −32.7 and −23‰; the mean (± SE) mKP and IFR δ13CF values were −27.5‰ (±0.2) and −27.3‰ (±0.1), respectively, and were statistically identical (p>0.05). WT analysis and IFR δ18OF estimates showed better correlation (R2 = 0.37) when only turbulent periods (u&amp;ast;>0.6 m s−1) were included in the analysis. The large amount of data captured (~95 % of half-hour periods evaluated) for the IFR in comparison with mKP (27 %) shows that the former provides new opportunities for studying δ18OF dynamics within forest canopies. Values of δ18OF showed large temporal variation, with values ranging from −31.4‰ (DOY 208) to −11.2‰ (DOY 221). Precipitation events caused substantial variation (~8‰) in δ18OF over a period of approximately 24 h. A diel trend of δ18OF was observed, with more depleted values present during the daytime. Model simulations indicate that the activity of the carbonic anhydrase enzyme was quite variable during the evaluated period. These simulations indicate that more frequent sampling of δ18O of soil water could improve the estimates of δ18O of net soil CO2 flux." @default.
• W2115004402 created "2016-06-24" @default.
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• W2115004402 date "2012-07-02" @default.
• W2115004402 modified "2023-09-30" @default.
• W2115004402 title "Use of the isotope flux ratio approach to investigate the C&lt;sup&gt;18&lt;/sup&gt;O&lt;sup&gt;16&lt;/sup&gt;O and &lt;sup&gt;13&lt;/sup&gt;CO&lt;sub&gt;2&lt;/sub&gt; exchange near the floor of a temperate deciduous forest" @default.
• W2115004402 cites W1560917995 @default.
• W2115004402 cites W1595625151 @default.
• W2115004402 cites W1650486528 @default.
• W2115004402 cites W1710442600 @default.
• W2115004402 cites W1772103314 @default.
• W2115004402 cites W1967478738 @default.
• W2115004402 cites W1971235239 @default.
• W2115004402 cites W1986824185 @default.
• W2115004402 cites W1989236725 @default.
• W2115004402 cites W1991361234 @default.
• W2115004402 cites W1992474807 @default.
• W2115004402 cites W1994378052 @default.
• W2115004402 cites W1994954836 @default.
• W2115004402 cites W1998345718 @default.
• W2115004402 cites W2001442432 @default.
• W2115004402 cites W2004400186 @default.
• W2115004402 cites W2006032008 @default.
• W2115004402 cites W2007721509 @default.
• W2115004402 cites W2012940687 @default.
• W2115004402 cites W2016109867 @default.
• W2115004402 cites W2017826346 @default.
• W2115004402 cites W2018516735 @default.
• W2115004402 cites W2018831687 @default.
• W2115004402 cites W2022614564 @default.
• W2115004402 cites W2023026659 @default.
• W2115004402 cites W2023198138 @default.
• W2115004402 cites W2026280837 @default.
• W2115004402 cites W2026539639 @default.
• W2115004402 cites W2029034594 @default.
• W2115004402 cites W2034940081 @default.
• W2115004402 cites W2036848195 @default.
• W2115004402 cites W2042083184 @default.
• W2115004402 cites W2043002759 @default.
• W2115004402 cites W2058214730 @default.
• W2115004402 cites W2069560161 @default.
• W2115004402 cites W2076528738 @default.
• W2115004402 cites W2078684101 @default.
• W2115004402 cites W2088512649 @default.
• W2115004402 cites W2092508533 @default.
• W2115004402 cites W2093094555 @default.
• W2115004402 cites W2093570790 @default.
• W2115004402 cites W2099063502 @default.
• W2115004402 cites W2099357354 @default.
• W2115004402 cites W2106067273 @default.
• W2115004402 cites W2107080383 @default.
• W2115004402 cites W2112122220 @default.
• W2115004402 cites W2112160936 @default.
• W2115004402 cites W2115014949 @default.
• W2115004402 cites W2116485565 @default.
• W2115004402 cites W2122941804 @default.
• W2115004402 cites W2124257987 @default.
• W2115004402 cites W2128254052 @default.
• W2115004402 cites W2128634461 @default.
• W2115004402 cites W2130023012 @default.
• W2115004402 cites W2132240406 @default.
• W2115004402 cites W2135195204 @default.
• W2115004402 cites W2135328745 @default.
• W2115004402 cites W2136275943 @default.
• W2115004402 cites W2139817186 @default.
• W2115004402 cites W2139966159 @default.
• W2115004402 cites W2143476607 @default.
• W2115004402 cites W2143804637 @default.
• W2115004402 cites W2147680602 @default.
• W2115004402 cites W2154809613 @default.
• W2115004402 cites W2159005814 @default.
• W2115004402 cites W2159694591 @default.
• W2115004402 cites W2160578794 @default.
• W2115004402 cites W2161772375 @default.
• W2115004402 cites W2163598460 @default.
• W2115004402 cites W4230153088 @default.
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• W2115004402 doi "https://doi.org/10.5194/bg-9-2385-2012" @default.
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