AI Article Synopsis

  • Ongoing climate change is impacting native conifers like Norway spruce and Scots pine in Central Europe, pushing forestry to consider alternative species like Lebanon cedar for more stable forest ecosystems.
  • The study investigates the growth responses of Lebanon cedar compared to native conifers over 25 years (1994-2019) to assess their tolerance to climate stress from events like heat and drought.
  • Findings reveal that Lebanon cedar shows better growth resilience and adaptability under climate extremes, particularly favoring high water availability in late winter and spring, making it a potentially viable option for climate-resistant forests.

Article Abstract

Ongoing climate change increasingly affects growth conditions of native conifers such as Picea abies (Norway spruce) and Pinus sylvestris (Scots pine) in Central Europe. These conifers are primarily cultivated for wood production. To obtain ecologically and economically stable forests, forestry seeks alternative species that might be less prone to novel climatic conditions, such as Cedrus libani (Lebanon cedar). We aim at investigating growth responses to climatic factors of C. libani compared to native P. abies and P. sylvestris in Central Europe for 25 years (1994-2019). Growth responses were used as a proxy for tolerance towards climatic stress events, such as heat and drought. Height, diameter at breast height (DBH) and radial increment were measured for 40-year-old tree stands of C. libani and native conifers. Radial growth responses to selected climate parameters were analysed using bootstrapped correlations with detrended growth index chronologies and growth response indices for drought years (2003, 2012, 2015, 2018). For C. libani, radial growth was positively correlated with high water availability in late winter and spring, while for P. abies, February and summer and for P. sylvestris, July showed such a relationship. Cedrus libani exhibited the highest resistance, recovery, and resilience in response to climatic extremes. Against the background of climate change, C. libani could serve as an alternative conifer species to establish climate-resistant viable forests in Central Europe.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180601PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0275317PLOS

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