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Where
What, Why
Research activity
Forest survey
Dendro-ecological investigations
Carbon isotope investigation
Where
Where
The forest "Pergamo-Le Manche" is located in the municipality of Gorgoglione (Matera, Basilicata, Southern Italy).
What & Why
What & Why
The studied oak forest is dominated by Quercus cerris (71%), and Quercus pubescens (25%), with minor presence of other broadleaf species.
Since the early 2000s, oak trees showed drought-induced decline symptoms.
Research activity
Research activity
Forest survey
Forest survey
What phenotypic symptoms have been observed? Shoot dieback, leaf loss and withering, growth decline, and mortality.
How decaying and non-decaying trees have been distinguished? Crown transparency of each tree was visually assessed by two independent observers using binoculars.
Dendro-ecological investigations
Dendro-ecological investigations
To quantify radial growth, increment cores were extracted at breast height (1.3 m) using 5 mm Pressler increment borers.
Carbon isotope investigations
Carbon isotope ratios were analyzed to assessed in wood of the two vigor classes to compare their water-use efficiency.
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