Share This Author
Drought and ecosystem carbon cycling
Quantifying and isolating stable soil organic carbon using long-term bare fallow experiments
The stability of soil organic matter (SOM) is a major source of uncertainty in predicting atmospheric CO2 concentration during the 21st century. Isolating the stable soil carbon (C) from other, more…
Historical and future perspectives of global soil carbon response to climate and land-use changes
In this paper, we attempt to analyse the respective influences of land-use and climate changes on the global and regional balances of soil organic carbon (SOC) stocks. Two time periods are analysed:…
An inventory of trace elements inputs to French agricultural soils.
Higher temperature sensitivity for stable than for labile soil organic carbon – Evidence from incubations of long‐term bare fallow soils
The results provide strong evidence for a general relationship between temperature sensitivity and SOC stability upon which significant improvements in predictive models could be based.
Sampling strategy and climatic implications of tree-ring stable isotopes on the southeast Tibetan Plateau
A new framework to estimate spatio-temporal ammonia emissions due to nitrogen fertilization in France.
Comparison of seasonal variations in water-use efficiency calculated from the carbon isotope composition of tree rings and flux data in a temperate forest.
- Alice Michelot, T. Eglin, E. Dufrene, C. Lelarge-Trouverie, C. Damesin
- Environmental SciencePlant, cell & environment
- 1 February 2011
The results suggest that latewood is a seasonal recorder of W(g) trends, with a temporal lag corresponding to the mixing time of sugars in the phloem, and indicate that intra-ring δ(13) C can be used to access seasonal variations in past W(t).
Impact of carbohydrate supply on stem growth, wood and respired CO2 delta13C: assessment by experimental girdling.
The importance of the characterization of stem metabolic pathways for a complete understanding of the delta(13)C signals is highlighted, via carbohydrate availability effects, and seasonal shift in substrate use from reserves to recently fixed carbohydrate is sufficient to explain the observed depletion of tree ring during the early wood growth.