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Keyphrases
Nitrous Oxide
100%
Isotopic Composition
100%
Methane
100%
Glacial-interglacial
40%
Concentration Variation
20%
Mass Spectrometer
20%
Relative Contribution
20%
Isotopic Data
20%
Biomass Burning
20%
Isotope Ratio
20%
Natural Gas
20%
Biogeochemical Cycles
20%
Abiogenic
20%
Rice Field
20%
Ruminants
20%
Methane Emission
20%
Carbon-13
20%
Exponential Rate
20%
Shallow Ice Core
20%
Gasses
20%
Greenhouse Gases
20%
High-resolution Measurement
20%
Isotopic Information
20%
Earth and Planetary Sciences
Isotopic Composition
100%
Methane
100%
Nitrous Oxide
100%
Biomass Burning
16%
Isotope Ratios
16%
Ice Core
16%
Carbon 14
16%
Natural Gas
16%
Paddy Field
16%
Greenhouse Gas
16%
Biogeochemical Cycle
16%
Ruminant
16%