Carbon isotope ratios in belowground carbon cycle processes

Article Abstract:

Research indicates that a shift in plant and microbial contributions may be responsible for the progressive carbon isotope ratios observed in soil organic matter, rather than microbial fractionation or differential degradation of soil organic matter. The effects of time lags in research are also discussed, as the turnover rates of various components can result in different isotopic compositions.

Carbon, Carbon isotopes

---

Age of soil organic matter and soil respiration: radiocarbon constraints on belowground C dynamics

Article Abstract:

Research indicates that the average predicted age for carbon dioxide produced via decomposition is less than the average age of carbon in soil organic matter. Radiocarbon measurements of bulk organic matter and heterotrophic respiration fluxes are biased toward longer carbon-cycle time scales.

---

The vertical distribution of soil organic carbon and its relation to climate and vegetation

Article Abstract:

Research indicates that the distribution of soil organic carbon by depth is influenced by vertical root distribution paired with shoot/root allocations. The implications of this finding to carbon sequestration strategies and vegetation change are also discussed.

Roots (Botany)

Similar abstracts:

• Abstracts: The environmental status of the Baltic Sea in the 1940s, today, and in the future. The turnover of metals in a eutrophic and an oligotrophic lake in Sweden
• Abstracts: Effects of eutrophication on contaminant cycling in marine benthic systems
• Abstracts: Evolutionary computations: an overview. Polymorphism in systematics and comparative biology. Evolutionary physiology

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.