Canopy responses of Swedish primary and secondary forests to the 2018 drought
Wolf, Julika ; Asch, Johanna LU ; Tian, Feng LU ; Georgiou, Katerina and Ahlström, Anders LU
(2023)
In Environmental Research Letters
18(6).
- Abstract
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... (More)
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.
(Less)
- author
- Wolf, Julika
; Asch, Johanna
LU
; Tian, Feng
LU
; Georgiou, Katerina
and Ahlström, Anders
LU
- organization
- publishing date
- 2023-06-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- drought, land-use, primary forests, remote sensing, Sweden
- in
- Environmental Research Letters
- volume
- 18
- issue
- 6
- article number
- 064044
- publisher
- IOP Publishing
- external identifiers
-
- scopus:85163676821
- ISSN
- 1748-9326
- DOI
- 10.1088/1748-9326/acd6a8
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2023 The Author(s). Published by IOP Publishing Ltd.
- id
- 7acc98d5-f925-4808-9d02-fcba1d97b4a6
- date added to LUP
- 2023-08-31 16:10:18
- date last changed
- 2023-09-18 12:40:04
@article{7acc98d5-f925-4808-9d02-fcba1d97b4a6,
abstract = {{<p>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.</p>}},
author = {{Wolf, Julika and Asch, Johanna and Tian, Feng and Georgiou, Katerina and Ahlström, Anders}},
issn = {{1748-9326}},
keywords = {{drought; land-use; primary forests; remote sensing; Sweden}},
language = {{eng}},
month = {{06}},
number = {{6}},
publisher = {{IOP Publishing}},
series = {{Environmental Research Letters}},
title = {{Canopy responses of Swedish primary and secondary forests to the 2018 drought}},
url = {{http://dx.doi.org/10.1088/1748-9326/acd6a8}},
doi = {{10.1088/1748-9326/acd6a8}},
volume = {{18}},
year = {{2023}},
}