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Title: The Montado agroforestry system microclimatic specificity in the context of global change
Authors: Nunes, Jorge
Andrade, José
Abreu, Francisco
Gazarini, Luís
Madeira, Manuel
Editors: Pribullovà, A.
Bicárová, S.
Keywords: Montado
Quercus rotundifolia
Soil water
Issue Date: Sep-2009
Publisher: Pribullovà, A., Bicárová, S.
Citation: Sustainable development and bioclimate (International Conference in Stara Lesná 5th to 8th October 2009)
Abstract: The effects of oak trees on microclimatic parameters in Quercus rotundifolia Lam. woodland in the Alentejo, Southern Portugal, are reported. Results show that oak tree create a marked differentiation in the grass matrix, between open and undercanopy areas. Compared to open areas, it presents lower soil moisture beneath the oak canopy, lower soil temperatures and lower photosynthetically active radiation (PAR). Soil temperatures outside trees canopy were generally higher than undercanopy areas, reaching twice its values during the winter. The decrease of soil water content is more rapid in areas outside the trees canopy action, but the replenishment starts early and is faster in those areas. PAR intercepted by tree canopy is greater than 60%, and affects dramatically herbaceous production. Different climatic conditions due to the presence of the tree, associated with greater variability in chemistry environment undercanopy, if combined with the IPCC forecasts for Mediterranean region, pose new challenges in the management of the montado areas.
Type: article
Appears in Collections:MED - Artigos em Livros de Actas/Proceedings

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