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Impacts of extreme drought on ecosystems in Eurasia and Sweden - the role of deep water reserves

Start: 2020

Large scale drought hit Sweden in 2018 and the extremely hot summer days of 2019 sets new heat records across Europe. Global warming is not only increasing mean temperatures, but also extremes, driving evaporation and increasing water vapour pressure deficit, resulting in more frequent and extreme drought. Currently the growth rate of northern forests is increasing but there is evidence that drought induced mortality is also on the rise in boreal and temperate forests. Increased biomass is linked to higher water demand which may lead to so-called structural overshoot, exacerbating the vulnerability of forests to drought. The proposed project will leverage and build on ongoing projects and developments at Gothenburg and Lund Universities, as well as encourage state of the art research and strengthen Lund-Gothenburg cooperation. Identification and analysis of extreme weather events will be combined with newly developed hydrology processes in the ecosystem model LPJ-GUESS to analyze past, current and future impact of drought on Swedish and Eurasian ecosystems. The postdoc will focus on using and refining a model version that includes deep water storage and ground water and evaluate the impact of extreme weather events in the past and in the future.

Contact

Postdoc

Zhengyao Lu - portal.research.lu.se

Department of Physical Geography and Ecosystem Science 
zhengyao [dot] lu [at] nateko [dot] lu [dot] se