Preprints
https://doi.org/10.5194/bg-2021-120
https://doi.org/10.5194/bg-2021-120

  06 May 2021

06 May 2021

Review status: a revised version of this preprint was accepted for the journal BG and is expected to appear here in due course.

Persistent impacts of the 2018 drought on forest disturbance regimes in Europe

Cornelius Senf1 and Rupert Seidl1,2 Cornelius Senf and Rupert Seidl
  • 1Technical University of Munich, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
  • 2Berchtesgaden National Park, Doktorberg 6, 83471, Berchtesgaden, Germany

Abstract. Europe was affected by an extreme drought in 2018, compounding with an extensive heatwave in the same and subsequent years. Here we provide a first rapid assessment of the impacts this compounding event had on forest disturbance regimes in Europe. We find that the 2018 drought has caused unprecedented levels of forest disturbance across large parts of Europe, persisting up to two years post drought. The 2018 drought pushed forest disturbance regimes in Europe to the edge of their past range of variation, especially in Central and Eastern Europe. Increased levels of forest disturbance were statistically linked to low soil water availability in 2018, and were further modulated by high vapor pressure deficit from 2018 to 2020. We also document the emergence of novel spatiotemporal disturbance patterns following the 2018 drought (i.e., more and larger disturbances, occurring with higher spatiotemporal autocorrelation) that will have long-lasting impacts on forest structure, and raise concerns about a potential loss of forest resilience. We conclude that the 2018 drought had unprecedented impacts on forest disturbance regimes in Europe, highlighting the urgent need to adapt Europe's forests to a hotter and drier future with more disturbance.

Cornelius Senf and Rupert Seidl

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on bg-2021-120', Anonymous Referee #1, 27 May 2021
    • AC1: 'Reply on RC1', Cornelius Senf, 23 Jul 2021
  • RC2: 'Comment on bg-2021-120', Anonymous Referee #2, 05 Jul 2021
    • AC2: 'Reply on RC2', Cornelius Senf, 23 Jul 2021

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on bg-2021-120', Anonymous Referee #1, 27 May 2021
    • AC1: 'Reply on RC1', Cornelius Senf, 23 Jul 2021
  • RC2: 'Comment on bg-2021-120', Anonymous Referee #2, 05 Jul 2021
    • AC2: 'Reply on RC2', Cornelius Senf, 23 Jul 2021

Cornelius Senf and Rupert Seidl

Cornelius Senf and Rupert Seidl

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Short summary
Europe was affected by an extreme drought in 2018. We show that this drought has increased forest disturbances across Europe, especially Central and Eastern Europe. Disturbance levels observed 2018–2020 were the highest on record for 30 years. Increased forest disturbances were correlated with low moisture and high atmospheric water demand. The unprecedented impacts of the 2018 drought on forest disturbances calls for urgent need to adapt Europe's forests to a hotter and drier future.
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