About 10.1 Mha worldwide are cultivated with Olive trees (Olea europaea L.) and the impact of this crop in regions with Mediterranean climate is very important. The olive orchards can be considered a complex coupled human-environment systems and the presence of trees can increase the resistance and the resilience of the ecosystems to the climatic and anthropic activities. We apply the model 3D-CMCC-OLIVE to analyse the effects of the human activities (irrigation and pruning) under current and future climate scenarios. The olive orchards are located in Italy, Greece and Israel and represent a high variability of management, cultivar and climatic condictions. To parameterize the model we apply the Bayesian calibration (10000 iterations) and best parameters are utilized to the simulations. In general the variability of the annual GPP (Gross Primary Production) is 504.66 - 2031.36 gC m-2 year-1. The mean of the GPP are 528.74 - 2031.36 gC m-2 year-1, 504.66 - 1805.04 gC m-2 year-1 and 1036.92 - 1818.40 gC m-2 year-1 in Italy, Greece and Israel respectively. In general the pruning combined with no nirrigation increase the GPP values in all farms. For example in Italy the pruning and different irrigations regime reduce the maximum of GPP (irrigation 'off': 2025.15 gC m-2 year-1;irrigation 'on': 2031.36 gC m-2 year-1); in Israel the combination pruning and irrigation reduce the GPP from 1818.40 gC m-2 year-1 (irrigation 'off') to 1802.62 gC m-2 year-1 (irrigation 'on'); in Greece if farms are irrigated and pruned the GPP is 1789.24 gC m-2 year-1, if irrigated not 1805.04 gC m-2 year-1. In conclusion the results suggests the importance of human activities in olive orchards to increase the carbon uptake and the effects of climate changes.
3D-CMCC-OLIVE: a process-based model to analyze the effects of the human activities and climate changes in olive orchards
Collalti A;
2018
Abstract
About 10.1 Mha worldwide are cultivated with Olive trees (Olea europaea L.) and the impact of this crop in regions with Mediterranean climate is very important. The olive orchards can be considered a complex coupled human-environment systems and the presence of trees can increase the resistance and the resilience of the ecosystems to the climatic and anthropic activities. We apply the model 3D-CMCC-OLIVE to analyse the effects of the human activities (irrigation and pruning) under current and future climate scenarios. The olive orchards are located in Italy, Greece and Israel and represent a high variability of management, cultivar and climatic condictions. To parameterize the model we apply the Bayesian calibration (10000 iterations) and best parameters are utilized to the simulations. In general the variability of the annual GPP (Gross Primary Production) is 504.66 - 2031.36 gC m-2 year-1. The mean of the GPP are 528.74 - 2031.36 gC m-2 year-1, 504.66 - 1805.04 gC m-2 year-1 and 1036.92 - 1818.40 gC m-2 year-1 in Italy, Greece and Israel respectively. In general the pruning combined with no nirrigation increase the GPP values in all farms. For example in Italy the pruning and different irrigations regime reduce the maximum of GPP (irrigation 'off': 2025.15 gC m-2 year-1;irrigation 'on': 2031.36 gC m-2 year-1); in Israel the combination pruning and irrigation reduce the GPP from 1818.40 gC m-2 year-1 (irrigation 'off') to 1802.62 gC m-2 year-1 (irrigation 'on'); in Greece if farms are irrigated and pruned the GPP is 1789.24 gC m-2 year-1, if irrigated not 1805.04 gC m-2 year-1. In conclusion the results suggests the importance of human activities in olive orchards to increase the carbon uptake and the effects of climate changes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
