Page 8 - InnoRenew CoE International Conference 2023
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Olive leaf biomass evaluation methods
Albert Kravos*1, Richard Acquah¹, Jakub Sandak1;2
1 InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia; e-mail: albert.kravos@innorenew.eu, richard.acquah@innorenew.eu,
jakub.sandak@innorenew.eu
2 University of Primorska, Andrej Marušič Institute, Muzejski trg 2, 6000 Koper, jakub.sandak@upr.si
* Corresponding author
In this study, we aimed to assess the quantity of produced olive leaves during the pruning period using various
methods, including the measurement of the diameter of the branches that were cut, measurement of the weight
of the cut branches, acquisition of 3D scans by land-based laser scanning, and the acquisition of aerial and land-
based photography.
To accomplish this goal, we conducted a field study in 3 orchards where we pruned at least 3 olive trees. We used
the above-mentioned methods to collect data on the quantity of produced leaves, which were then analysed
using statistical methods.
Our preliminary results suggest that the most accurate evaluation of the quantity of produced leaves can be
done by the measurement of the diameter of the branches that were cut, followed by the measurement of the
weight of the cut branches. However, we found that the acquisition of 3D scans by land-based laser scanning and
the acquisition of aerial and land-based photography were less effective methods for this purpose.
Overall, our study provides valuable insights into the methods that can be used to assess the quantity of
produced leaves during the pruning period. These findings can be useful for orchard managers, researchers who
are interested in optimizing their pruning practices and improving the yield of their crops, and for industrial
applications where olive leaves represent a valuable resource (Estornell et al., 2015; Vorster et al., 2020).
Keywords: olive leaves, biomass availability, biomass modelling, biomass upcycling, sustainable development
Acknowledgement: Authors acknowledge the European Commission for funding the InnoRenew project
(grant agreement #739574 under the Horizon2020 Widespread-2-Teaming program), and the Republic of
Slovenia (investment funding from the Republic of Slovenia and the European Regional Development Fund).
The project OLEAF4VALUE has received funding from the Bio Based Industries Joint Undertaking (JU) under
grant agreement No 101023256. The JU receives support from the European Union’s Horizon 2020 research
and innovation program and the Bio Based Industries Consortium.
REFERENCES
stornell, J., Ruiz, L.A., Velázquez-Martí, B., López-Cortés, I., Salazar, D., Fernández-Sarría, A., 2015. Estimation
of pruning biomass of olive trees using airborne discrete-return LiDAR data. Biomass Bioenergy 81, 315–321.
https://doi.org/10.1016/j.biombioe.2015.07.015
Vorster, A.G., Evangelista, P.H., Stovall, A.E.L., Ex, S., 2020. Variability and uncertainty in forest biomass
estimates from the tree to landscape scale: The role of allometric equations. Carbon Balance Manag 15. https://
doi.org/10.1186/s13021-020-00143-6
8 13–14 SEPTEMBER 2023 I IZOLA, SLOVENIA
Albert Kravos*1, Richard Acquah¹, Jakub Sandak1;2
1 InnoRenew CoE, Livade 6a, 6310 Izola, Slovenia; e-mail: albert.kravos@innorenew.eu, richard.acquah@innorenew.eu,
jakub.sandak@innorenew.eu
2 University of Primorska, Andrej Marušič Institute, Muzejski trg 2, 6000 Koper, jakub.sandak@upr.si
* Corresponding author
In this study, we aimed to assess the quantity of produced olive leaves during the pruning period using various
methods, including the measurement of the diameter of the branches that were cut, measurement of the weight
of the cut branches, acquisition of 3D scans by land-based laser scanning, and the acquisition of aerial and land-
based photography.
To accomplish this goal, we conducted a field study in 3 orchards where we pruned at least 3 olive trees. We used
the above-mentioned methods to collect data on the quantity of produced leaves, which were then analysed
using statistical methods.
Our preliminary results suggest that the most accurate evaluation of the quantity of produced leaves can be
done by the measurement of the diameter of the branches that were cut, followed by the measurement of the
weight of the cut branches. However, we found that the acquisition of 3D scans by land-based laser scanning and
the acquisition of aerial and land-based photography were less effective methods for this purpose.
Overall, our study provides valuable insights into the methods that can be used to assess the quantity of
produced leaves during the pruning period. These findings can be useful for orchard managers, researchers who
are interested in optimizing their pruning practices and improving the yield of their crops, and for industrial
applications where olive leaves represent a valuable resource (Estornell et al., 2015; Vorster et al., 2020).
Keywords: olive leaves, biomass availability, biomass modelling, biomass upcycling, sustainable development
Acknowledgement: Authors acknowledge the European Commission for funding the InnoRenew project
(grant agreement #739574 under the Horizon2020 Widespread-2-Teaming program), and the Republic of
Slovenia (investment funding from the Republic of Slovenia and the European Regional Development Fund).
The project OLEAF4VALUE has received funding from the Bio Based Industries Joint Undertaking (JU) under
grant agreement No 101023256. The JU receives support from the European Union’s Horizon 2020 research
and innovation program and the Bio Based Industries Consortium.
REFERENCES
stornell, J., Ruiz, L.A., Velázquez-Martí, B., López-Cortés, I., Salazar, D., Fernández-Sarría, A., 2015. Estimation
of pruning biomass of olive trees using airborne discrete-return LiDAR data. Biomass Bioenergy 81, 315–321.
https://doi.org/10.1016/j.biombioe.2015.07.015
Vorster, A.G., Evangelista, P.H., Stovall, A.E.L., Ex, S., 2020. Variability and uncertainty in forest biomass
estimates from the tree to landscape scale: The role of allometric equations. Carbon Balance Manag 15. https://
doi.org/10.1186/s13021-020-00143-6
8 13–14 SEPTEMBER 2023 I IZOLA, SLOVENIA
