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Dendroecological and ecophysiological studies on climate sensitivity rare indigenous trees - HNEE-SHB


Project code: 28WC4103
Contract period: 01.02.2016 - 31.01.2019
Budget: 698,007 Euro
Purpose of research: Applied research

Present research mainly focused on the possible consequences of a changing climate on growth patterns of im-portant commercial tree species, indicating profound negative effects. In this context little is know about rare native species as well as secondary tree species. However, these species may be of vital importance for the sta-bility, productivity and biodiversity of managed and non-managed forests in the future. In field and laboratory experiments a broad set of morphological, dendrochronological and physiological param-eters will be investigated for the rare natives European crab apple, European wild pear, English yew, wild ser-vice tree (checkertree), sweet cherry and for the secondary tree species hedge maple, European hornbeam and European white birch. Further, risk and suitability analyses are employed to derive species-specific eco-physiological response patterns, with respect to extreme drought events. Due to the prevailing climatic conditions (low average annual rainfall, frequent dry periods during the growing season) northeastern Germany is particularly suitable for this approach. A selected sub-set of tree species will be investigated also in southern Germany to capture population dynamics and regional adaptations (provenances). For the selected tree species the final goal is the evaluation and assessment of their species-specific climate sen-sitivity, especially their drought stress tolerance. By including the corresponding literature for the main commercial tree species European beech, English oak and Scots pine we will formulate projections regarding the adaptability of current forests and will deduce forest prac-tices that are most likely to mitigate projected climate effects by incorporating the investigated tree species into the sivilcultural management.

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