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Impact of Volcanic Sulfur Emissions on the Pine Forest of La Palma, Spain

Title data

Weiser, Frank ; Baumann, Esther ; Jentsch, Anke ; Medina, Félix M. ; Lu, Meng ; Nogales, Manuel ; Beierkuhnlein, Carl:
Impact of Volcanic Sulfur Emissions on the Pine Forest of La Palma, Spain.
In: Forests. Vol. 13 (2022) Issue 2 . - No. 299.
ISSN 1999-4907
DOI: https://doi.org/10.3390/f13020299

Abstract in another language

In autumn 2021, the largest volcanic eruption on the island of La Palma in historic records took place. The Canary Islands are of volcanic origin and eruptions have always constituted part of their natural disturbance regime. Until recently, their impacts could not be directly observed and studied. Influence of the emission of phytotoxic gases on biodiversity and ecosystem dynamics was hitherto unknown. The recent eruption is still being intensely monitored. We used Sentinel-2 remote sensing data to analyze the spatial extent and intensity of the impact related to sulfuric emissions, aiming to understand the damage patterns in Canary pine forest. The emissions damaged 10% of that forest and affected 5.3% of the Natura 2000 protected areas. We concluded that this is largely due to the toxic effects of the enormous emissions of SO2. We found a clear correlation between the change in the normalized difference vegetation index (NDVI) and distance from the eruption. This pattern was weakly anisotropic, with stronger damage in southern directions. Counteracting effects, such as ash deposition, were largely excluded by combining NDVI change detection with tree cover density. We expect that vegetation damage will be transient. P. canariensis can resprout after forest fires, where most leaves are lost. Consequently, our assessment can serve as a reference for future ecosystem regeneration.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Sentinel-2; Natural pollution; Chlorosis; Natural disturbances; Volcanism; Oceanic island; Sulfur; Pinus canariensis; Pine forest; Cumbre Vieja; Volcanic eruption
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography > Chair Biogeography - Univ.-Prof. Dr. Carl Beierkuhnlein
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professor Disturbance Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professor Disturbance Ecology > Professor Disturbance Ecology - Univ.-Prof. Dr. Anke Jentsch
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 550 Earth sciences, geology
500 Science > 580 Plants (Botany)
Date Deposited: 16 Feb 2022 08:15
Last Modified: 30 Sep 2022 09:15
URI: https://eref.uni-bayreuth.de/id/eprint/68686