Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

profile

Anders Ahlström

Universitetslektor

profile

Canopy responses of Swedish primary and secondary forests to the 2018 drought

Författare

  • Julika Wolf
  • Johanna Asch
  • Feng Tian
  • Katerina Georgiou
  • Anders Ahlström

Summary, in English

Boreal forest ecosystems are predicted to experience more frequent summer droughts due to climate change, posing a threat to future forest health and carbon sequestration. Forestry is a regionally dominant land use where the managed secondary forests are typically even-aged forests with low structural and tree species diversity. It is not well known if managed secondary forests and unmanaged primary forests respond to drought differently in part because the location of primary, unmanaged, forests has remained largely unknown. Here we employed a unique map detailing over 300 primary forests in Sweden. We studied impacts of the 2018 nationwide drought by extracting and analyzing a high-resolution remote sensing vegetation index over the primary forests and over buffer zones around the primary forests representing secondary forests. We controlled for topographical variations linked to soil moisture, which was a strong determinant of drought responses, and analyzed Landsat-derived EVI2 anomalies during the drought year from a multiyear non-drought baseline. We found that primary forests were less affected by the drought compared to secondary forests. Our results indicate that forestry may exacerbate the impact of drought in a future climate with more frequent and extreme hydroclimatic events.

Avdelning/ar

  • Institutionen för naturgeografi och ekosystemvetenskap
  • LU profilområde: Naturbaserade framtidslösningar
  • MERGE: ModElling the Regional and Global Earth system
  • BECC: Biodiversity and Ecosystem services in a Changing Climate
  • MECW: The Middle East in the Contemporary World

Publiceringsår

2023-06-01

Språk

Engelska

Publikation/Tidskrift/Serie

Environmental Research Letters

Volym

18

Issue

6

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Climate Research

Nyckelord

  • drought
  • land-use
  • primary forests
  • remote sensing
  • Sweden

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1748-9326