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Titel |
Integrated observations of CO2 fluxes in vineyards to support the management of soil organic matter |
VerfasserIn |
Nadia Vendrame, Luca Tezza, Franco Meggio, Andrea Pitacco |
Konferenz |
EGU General Assembly 2017
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Medientyp |
Artikel
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Sprache |
en
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Digitales Dokument |
PDF |
Erschienen |
In: GRA - Volume 19 (2017) |
Datensatznummer |
250151392
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Publikation (Nr.) |
EGU/EGU2017-15968.pdf |
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Zusammenfassung |
Vineyard soils are subjected to a substantial depletion of the organic fraction due to the
transition to intensive farming systems, the reduction of row spacing and the fast evolution of
vineyard mechanization. The use of cover crops, grassed inter-rows and organic fertilization
can all contribute to the increase, stabilization and protection of soil organic matter. However,
a clear picture of carbon fluxes in the soil-plant-atmosphere system is still lacking, especially
in vineyards. A detailed knowledge of these processes is also of primary importance to
correctly predict the impact of future climate scenarios on viticulture and understand
whether these ecosystems can act as source or sink of greenhouse gases. Even if it
is commonly believed that agricultural crops cannot be net carbon sinks, woody
perennials can behave differently. In fact, they grow a permanent structure, stand
undisturbed in the same field for decades, originate abundant pruning debris, and are often
grass-covered.
Within the framework of the LIFE project VITISOM (VITiculture Innovative Soil
Organic Matter management: variable-rate distribution system and monitoring of impacts,
LIFE15 ENV/IT/000392) two integrated observatories of ecosystem CO2 fluxes have been
established in Northern Italy, to disentangle the vineyard carbon budget in the mid-term. This
knowledge can be of great value to better manage organic fertilization and soil fertility in
vineyards. |
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