Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest
The potential consequences of global warming for ecosystem carbon stocks are a major concern, particularly in high-latitude regions where soil carbon pools are especially large. Research on soil and plant carbon responses to warming are often based on short-term (' 10year) warming experiments....
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ftcdlib:oai:escholarship.org/ark:/13030/qt62d165px 2023-05-15T17:57:57+02:00 Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest Alster, CJ Allison, SD Treseder, KK 345 - 353 2020-10-01 application/pdf https://escholarship.org/uc/item/62d165px unknown eScholarship, University of California qt62d165px https://escholarship.org/uc/item/62d165px public Biogeochemistry, vol 150, iss 3 Boreal forest Carbon budget Field experimental warming Global climate change Nitrogen budget Agronomy & Agriculture Other Chemical Sciences Geochemistry Environmental Science and Management article 2020 ftcdlib 2021-04-16T07:11:19Z The potential consequences of global warming for ecosystem carbon stocks are a major concern, particularly in high-latitude regions where soil carbon pools are especially large. Research on soil and plant carbon responses to warming are often based on short-term (' 10year) warming experiments. Furthermore, carbon budgets from boreal forests, which contain at least 10–20% of the global soil carbon pool, have shown mixed responses to warming. In this study, we measured carbon and nitrogen budgets (i.e., soil and understory vegetation carbon and nitrogen stocks) from a 13-year greenhouse warming experiment in an Alaskan boreal forest. Although there were no differences in total aboveground + belowground pools, the carbon in the moss biomass and in the soil organic layer significantly decreased with the warming treatment (− 88.3% and − 19.1%, respectively). Declines in moss biomass carbon may be a consequence of warming-associated drying, while shifts in the soil microbial community could be responsible for the decrease in carbon in the soil organic layer. Moreover, in response to warming, aboveground plant biomass carbon tended to increase while root biomass carbon tended to decrease, so carbon allocation may shift aboveground with warming. Overall these results suggest that permafrost-free boreal forests are susceptible to soil carbon loss with warming. Article in Journal/Newspaper permafrost University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Boreal forest Carbon budget Field experimental warming Global climate change Nitrogen budget Agronomy & Agriculture Other Chemical Sciences Geochemistry Environmental Science and Management |
spellingShingle |
Boreal forest Carbon budget Field experimental warming Global climate change Nitrogen budget Agronomy & Agriculture Other Chemical Sciences Geochemistry Environmental Science and Management Alster, CJ Allison, SD Treseder, KK Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest |
topic_facet |
Boreal forest Carbon budget Field experimental warming Global climate change Nitrogen budget Agronomy & Agriculture Other Chemical Sciences Geochemistry Environmental Science and Management |
description |
The potential consequences of global warming for ecosystem carbon stocks are a major concern, particularly in high-latitude regions where soil carbon pools are especially large. Research on soil and plant carbon responses to warming are often based on short-term (' 10year) warming experiments. Furthermore, carbon budgets from boreal forests, which contain at least 10–20% of the global soil carbon pool, have shown mixed responses to warming. In this study, we measured carbon and nitrogen budgets (i.e., soil and understory vegetation carbon and nitrogen stocks) from a 13-year greenhouse warming experiment in an Alaskan boreal forest. Although there were no differences in total aboveground + belowground pools, the carbon in the moss biomass and in the soil organic layer significantly decreased with the warming treatment (− 88.3% and − 19.1%, respectively). Declines in moss biomass carbon may be a consequence of warming-associated drying, while shifts in the soil microbial community could be responsible for the decrease in carbon in the soil organic layer. Moreover, in response to warming, aboveground plant biomass carbon tended to increase while root biomass carbon tended to decrease, so carbon allocation may shift aboveground with warming. Overall these results suggest that permafrost-free boreal forests are susceptible to soil carbon loss with warming. |
format |
Article in Journal/Newspaper |
author |
Alster, CJ Allison, SD Treseder, KK |
author_facet |
Alster, CJ Allison, SD Treseder, KK |
author_sort |
Alster, CJ |
title |
Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest |
title_short |
Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest |
title_full |
Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest |
title_fullStr |
Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest |
title_full_unstemmed |
Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest |
title_sort |
carbon budgets for soil and plants respond to long-term warming in an alaskan boreal forest |
publisher |
eScholarship, University of California |
publishDate |
2020 |
url |
https://escholarship.org/uc/item/62d165px |
op_coverage |
345 - 353 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Biogeochemistry, vol 150, iss 3 |
op_relation |
qt62d165px https://escholarship.org/uc/item/62d165px |
op_rights |
public |
_version_ |
1766166474707173376 |