The Effects of Tree Shade on Vineyard Microclimate and Grape Production: A Novel Approach to Sun Radiation Modelling as a Response to Climate Change

Isilda Cunha Menezes, Mário Santos (), Lourdes Bugalho and Mário Gonzalez Pereira
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Isilda Cunha Menezes: Center for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
Mário Santos: Laboratory of Fluvial and Terrestrial Ecology (LEFT), Innovation and Development Center, Department of Biology and Environment, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
Lourdes Bugalho: Department of Meteorology and Geophysics, Portuguese Institute for Sea and Atmosphere (IPMA), 1749-077 Lisbon, Portugal
Mário Gonzalez Pereira: Centre for the Research and Technology of Agro-Environment and Biological Sciences (CITAB), Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), 5000-801 Vila Real, Portugal

Land, 2024, vol. 13, issue 11, 1-26

Abstract: Climate change threatens established agricultural systems and production, driving the need for adaptation and mitigation strategies. Vitiforestry, an alternative cultivation system combining trees and shrubs in the vineyard, promotes environmental sustainability and offers a possible adaptation strategy to climate change. This work scrutinizes the impact of shading on vineyards using an Integrated Model of Vineyard Shading and Climate Adaptation (IMVSCA), supported by a system dynamics approach. This model estimates solar radiation and computes daily and annual trends of insolation, air temperature, and relative humidity to shading and its influence on vineyard growth stages. It also assesses the effects of shading-related extreme weather events and the occurrence of grapevine disease development driven by daily weather conditions and zoning adaptations. The pilot results depict the effects of tree shading on vineyards, namely the impacts of solar radiation and air temperature on vine phenology, pollination, pollen germination, fungal diseases, and the complimentary indicators of grape production and quality. Our modeling framework and findings suggest that vitiforestry could be an interesting climate change adaptation technique, providing a starting point for further studies in this scope.

Keywords: vitiforestry; climate adaptation; agroforestry systems; wine production; Douro region (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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