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23 paź 2020 · Key Points. Carbon isotopes, 14 C and 13 C, in atmospheric CO 2 are changing in response to fossil fuel emissions and other human activities. Future simulations using different SSPs show continued changes in isotopic ratios that depend on fossil fuel emissions and, for 13 C, BECCS.
11 paź 2019 · The ratios of carbon stored to carbon uptake and water loss to carbon gain are key ecophysiological indicators essential to assess the magnitude and response of the terrestrial plant to the...
1 gru 2019 · The stable isotopes of carbon (δ 13 C) track changes in photosynthesis, respiration, organic matter decomposition and anthropogenic fuel emission inputs (e.g., McDowell et al., 2008), while the oxygen isotopes of water (δ 16 O and δ 18 O) contain information on the linkages between the carbon and water cycles (Dawson and Simonin, 2011).
28 wrz 2021 · Stable isotopes of hydrogen, carbon and oxygen are used to investigate numerous physical and chemical processes in the water and inorganic carbon cycles. Measuring and comparing natural isotopic...
17 sty 2018 · Atmospheric effects must be taken into account when interpreting terrestrial stable carbon isotopes, with important implications for past environments and climates, and understanding plant ...
Abstract We revisit the relationship between plant water use efficiency and carbon isotope signatures (Sl3C) of plant material. Based on the definitions of intrinsic, instantaneous and integrated water use efficiency, we discuss the impli-cations for interpreting <513C data from leaf to landscape levels, and across diurnal to decadal timescales ...
Instrumentation for the continuous measurement of stable isotopes in atmospheric trace substances such as carbon dioxide (CO 2), methane (CH 4), and also water vapor (H 2 O), has grown tremendously in the last decade.
