Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline?
Mountain birch forests ( B. pubescens Ehrh. ssp. czerepanovii ) at the subarctic treeline not only benefit from global warming, but are also increasingly affected by caterpillar outbreaks from foliage-feeding geometrid moths. Both of these factors have unknown consequences on soil organic carbon (SO...
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ftzenodo:oai:zenodo.org:5579137 2024-09-15T18:25:43+00:00 Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline? Meyer, Nele Xu, Yi Karjalainen, Katri Adamczyk, Sylwia Biasi, Christina van Delden, Lona Martin, Angela Mganga, Kevin Myller, Kristiina Sietiö, Outi-Maaria Suominen, Otso Karhu, Kristiina 2021-10-19 https://doi.org/10.5061/dryad.p5hqbzkqg unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.p5hqbzkqg oai:zenodo.org:5579137 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode soil carbon soil respiration insect herbivory priming effects soil organic matter Soil organic carbon stocks info:eu-repo/semantics/other 2021 ftzenodo https://doi.org/10.5061/dryad.p5hqbzkqg 2024-07-27T05:23:11Z Mountain birch forests ( B. pubescens Ehrh. ssp. czerepanovii ) at the subarctic treeline not only benefit from global warming, but are also increasingly affected by caterpillar outbreaks from foliage-feeding geometrid moths. Both of these factors have unknown consequences on soil organic carbon (SOC) stocks and biogeochemical cycles. We measured SOC stocks down to the bedrock under living trees and under two stages of dead trees (12 and 55 years since moth outbreak) and treeless tundra in northern Finland. We also measured in-situ soil respiration, potential SOC decomposability, biological (enzyme activities, microbial biomass), and chemical (N, mineral N, pH) soil properties. SOC stocks were significantly higher under living trees (4.1±2.1 kg m²) than in the treeless tundra (2.4±0.6 kg m²), and remained at an elevated level even 12 (3.7±1.7 kg m²) and 55 years (4.9±3.0 kg m²) after tree death. Effects of tree status on SOC stocks decreased with increasing distance from the tree and with increasing depth, i.e. a significant effect of tree status was found in the organic layer, but not in mineral soil. Soil under living trees was characterized by higher mineral N contents, microbial biomass, microbial activity, and soil respiration compared with the treeless tundra; soils under dead trees were intermediate between these two. The results suggest accelerated organic matter turnover under living trees but a positive net effect on SOC stocks. Slowed organic matter turnover and continuous supply of deadwood may explain why SOC stocks remained elevated under dead trees, despite the heavy decrease in aboveground C stocks. We conclude that the increased occurrence of moth damage with climate change would have minor effects on SOC stocks, but ultimately decrease ecosystem C stocks (49% within 55 years in this area), if the mountain birch forests will not be able to recover from the outbreaks. See ReadMe file. Other/Unknown Material Northern Finland Subarctic Tundra Zenodo |
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Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
soil carbon soil respiration insect herbivory priming effects soil organic matter Soil organic carbon stocks |
spellingShingle |
soil carbon soil respiration insect herbivory priming effects soil organic matter Soil organic carbon stocks Meyer, Nele Xu, Yi Karjalainen, Katri Adamczyk, Sylwia Biasi, Christina van Delden, Lona Martin, Angela Mganga, Kevin Myller, Kristiina Sietiö, Outi-Maaria Suominen, Otso Karhu, Kristiina Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline? |
topic_facet |
soil carbon soil respiration insect herbivory priming effects soil organic matter Soil organic carbon stocks |
description |
Mountain birch forests ( B. pubescens Ehrh. ssp. czerepanovii ) at the subarctic treeline not only benefit from global warming, but are also increasingly affected by caterpillar outbreaks from foliage-feeding geometrid moths. Both of these factors have unknown consequences on soil organic carbon (SOC) stocks and biogeochemical cycles. We measured SOC stocks down to the bedrock under living trees and under two stages of dead trees (12 and 55 years since moth outbreak) and treeless tundra in northern Finland. We also measured in-situ soil respiration, potential SOC decomposability, biological (enzyme activities, microbial biomass), and chemical (N, mineral N, pH) soil properties. SOC stocks were significantly higher under living trees (4.1±2.1 kg m²) than in the treeless tundra (2.4±0.6 kg m²), and remained at an elevated level even 12 (3.7±1.7 kg m²) and 55 years (4.9±3.0 kg m²) after tree death. Effects of tree status on SOC stocks decreased with increasing distance from the tree and with increasing depth, i.e. a significant effect of tree status was found in the organic layer, but not in mineral soil. Soil under living trees was characterized by higher mineral N contents, microbial biomass, microbial activity, and soil respiration compared with the treeless tundra; soils under dead trees were intermediate between these two. The results suggest accelerated organic matter turnover under living trees but a positive net effect on SOC stocks. Slowed organic matter turnover and continuous supply of deadwood may explain why SOC stocks remained elevated under dead trees, despite the heavy decrease in aboveground C stocks. We conclude that the increased occurrence of moth damage with climate change would have minor effects on SOC stocks, but ultimately decrease ecosystem C stocks (49% within 55 years in this area), if the mountain birch forests will not be able to recover from the outbreaks. See ReadMe file. |
format |
Other/Unknown Material |
author |
Meyer, Nele Xu, Yi Karjalainen, Katri Adamczyk, Sylwia Biasi, Christina van Delden, Lona Martin, Angela Mganga, Kevin Myller, Kristiina Sietiö, Outi-Maaria Suominen, Otso Karhu, Kristiina |
author_facet |
Meyer, Nele Xu, Yi Karjalainen, Katri Adamczyk, Sylwia Biasi, Christina van Delden, Lona Martin, Angela Mganga, Kevin Myller, Kristiina Sietiö, Outi-Maaria Suominen, Otso Karhu, Kristiina |
author_sort |
Meyer, Nele |
title |
Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline? |
title_short |
Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline? |
title_full |
Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline? |
title_fullStr |
Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline? |
title_full_unstemmed |
Data from: Living, dead, and absent trees - How do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the Subarctic mountain birch treeline? |
title_sort |
data from: living, dead, and absent trees - how do moth outbreaks shape small-scale patterns of soil organic matter stocks and dynamics at the subarctic mountain birch treeline? |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://doi.org/10.5061/dryad.p5hqbzkqg |
genre |
Northern Finland Subarctic Tundra |
genre_facet |
Northern Finland Subarctic Tundra |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.p5hqbzkqg oai:zenodo.org:5579137 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.p5hqbzkqg |
_version_ |
1810466211347038208 |