Brilli, Lorenzo (2015) Olive tree system in Mediterranean basin: a mid-term survey on C sequestration dynamics and modelling. Doctoral Thesis.
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The contribution that olive orchards can provide in climate mitigation should be more deeply analyzed given that these systems can stock large amount of C in woody compartments and soils. These systems could play a fundamental role especially over Mediterranean basin that is one of the most sensitive areas to climate change and where they are widely cultivated.
However some issues are still open: what do we really know about the C-sequestration capacity provided by these systems? Can these really contribute to climate change mitigation both for current and future periods?
In order to solve these questions, a mid-term study (3 years) was carried out at Follonica (Tuscany, central Italy), where an eddy covariance tower was installed over a typical rainfed olive orchard. Data from eddy covariance were then used for calibrating and validating two different models able at simulating C-exchange and biomass production from this system.
Our work firstly allowed to assess the C-fluxes dynamics from this system and their relation with the main meteorological parameters and agricultural practices, thus indicating the magnitude of C-sequestration capacity offered by a typical Mediterranean olive orchard; as second the implementation of new tools that can be used for assessing the efficiency of mitigation strategies or to predict changes in mitigation capacity that these systems will probably encounter over the next decades.
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