Greenhouse Gas Emissions and Carbon Sequestration from Conventional and Organic Olive Tree Nurseries in Tuscany, Italy

Giulio Lazzerini, Jacopo Manzini (), Stefano Lucchetti, Stefania Nin and Francesco Paolo Nicese
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Giulio Lazzerini: Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), University of Florence, Viale Delle Idee 30, 50019 Sesto Fiorentino, Italy
Jacopo Manzini: Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), University of Florence, Viale Delle Idee 30, 50019 Sesto Fiorentino, Italy
Stefano Lucchetti: Agri Vivai S.r.l, Via Casalina 118/G, 51100 Pistoia, Italy
Stefania Nin: Research Centre for Vegetables and Ornamental Crops, Council for Agricultural Research and Economics (CREA), Via dei Fiori 8, 51017 Pescia, Italy
Francesco Paolo Nicese: Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), University of Florence, Viale Delle Idee 30, 50019 Sesto Fiorentino, Italy

Sustainability, 2022, vol. 14, issue 24, 1-13

Abstract: In this study, conventional and organic olive tree nurseries were compared through a Life Cycle Assessment (LCA) analysis to identify processes that have a greater environmental impact and which of the two systems leads to lower greenhouse gas (GHG) emissions. Carbon sequestration in the woody biomass of the plants grown with both management systems was also considered. The research was carried out on six olive tree nurseries, four conventional and two managed also with an organic system, located in the nursery district of Pescia (Tuscany, Italy). The functional unit considered was two-year-old pot-grown plants (pot 15 cm Ø) and the results were expressed in terms of kg of CO 2 equivalent (CO 2 eq). In all the nurseries analyzed, LCA showed that pots were the highest CO 2 eq emission source (45–63%), followed by potting mix (22.6–32.1%). This was due to the use of plastic in pots and peat for the growing media. Organic management was found to have a definite positive influence on the decrease of GHG, reducing the emissions up to 13% compared with conventional nurseries. Considering carbon stocked in the woody tissues of seedlings, the reduction of emissions attained 15.7% though a slightly lower (−6.7%) amount of CO 2 incorporated into biomass was detected in the olive plants grown in organic nurseries. In light of our results, conversion of the nursery industry from conventional to organic management has the potential to reduce its carbon footprint.

Keywords: carbon footprint; conventional management; life cycle assessment; Olea europaea; organic management; pot nursery production (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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