Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China
Regional quantification of soil CO2 and CH4 fluxes in boreal forests remains difficult because of high landscape heterogeneity and fire disturbance coupled with a sparse measurements network. Most of the work focuses on the separate effects of fire or topography, and as a result, the spatial variabi...
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Online Access: | http://ir.imde.ac.cn/handle/131551/18689 https://doi.org/10.1016/j.ecoleng.2017.05.033 |
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ftchinacadscimhe:oai:ir.imde.ac.cn:131551/18689 2023-05-15T15:16:30+02:00 Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China Song, Xiaoyan Wang, Genxu Ran, Fei Chang, Ruiying Song, Chunlin Xiao, Yao 2017 http://ir.imde.ac.cn/handle/131551/18689 https://doi.org/10.1016/j.ecoleng.2017.05.033 英语 eng ECOLOGICAL ENGINEERING Song, Xiaoyan,Wang, Genxu,Ran, Fei,et al. Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China[J]. ECOLOGICAL ENGINEERING,2017,106:35-43. http://ir.imde.ac.cn/handle/131551/18689 doi:10.1016/j.ecoleng.2017.05.033 Soil Carbon Dioxide Flux Soil Methane Flux Topography Fire Boreal Foresta Science & Technology Life Sciences & Biomedicine Technology Environmental Sciences & Ecology Engineering ARCTIC COASTAL TUNDRA TEMPERATURE-DEPENDENCE METHANE FLUXES INTERIOR ALASKA CARBON STORAGE FOREST RESPIRATION LANDSCAPE THAW CO2 Ecology Environmental Environmental Sciences Article 期刊论文 2017 ftchinacadscimhe https://doi.org/10.1016/j.ecoleng.2017.05.033 2022-12-19T18:20:08Z Regional quantification of soil CO2 and CH4 fluxes in boreal forests remains difficult because of high landscape heterogeneity and fire disturbance coupled with a sparse measurements network. Most of the work focuses on the separate effects of fire or topography, and as a result, the spatial variability in the response of soil carbon flux to fire remains unclear. A two-year field experiment was conducted in the boreal forest of the DaXinganling Mountains to investigate the effects of topography (ridge and depression) and fire on soil CO2 and CH4 fluxes and to determine how the effects of fire vary with topography. The results showed that soil carbon flux to the atmosphere in this region was dominated by soil CO2 flux. Topography had significant effect on soil carbon fluxes, with higher soil CO2 emissions and CH4 uptakes on the ridge than in the depression, whether burned or not, and these topographical differences were amplified by fire. Fire significantly increased soil CO2 emissions and CH4 uptakes both in the depression and on the ridge. However, the factors that determined soil CO2 and CH4 fluxes and the extent of the response to fire varied with topography. Although the depression released less soil carbon to the atmosphere, the increase in Q(10) of soil CO2 flux and the permafrost degradation following fire in the depression indicated stronger positive feedbacks to climate warming. To concluded, topography regulated the effects of fire on soil carbon fluxes and might control the post-fire soil carbon flux feedbacks to climate warming. Therefore, large-scale predictions of soil carbon fluxes in response to fire in the boreal region must explicitly incorporate topographic features. (C) 2017 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Arctic permafrost Tundra Alaska IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) Arctic Ecological Engineering 106 35 43 |
institution |
Open Polar |
collection |
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadscimhe |
language |
English |
topic |
Soil Carbon Dioxide Flux Soil Methane Flux Topography Fire Boreal Foresta Science & Technology Life Sciences & Biomedicine Technology Environmental Sciences & Ecology Engineering ARCTIC COASTAL TUNDRA TEMPERATURE-DEPENDENCE METHANE FLUXES INTERIOR ALASKA CARBON STORAGE FOREST RESPIRATION LANDSCAPE THAW CO2 Ecology Environmental Environmental Sciences |
spellingShingle |
Soil Carbon Dioxide Flux Soil Methane Flux Topography Fire Boreal Foresta Science & Technology Life Sciences & Biomedicine Technology Environmental Sciences & Ecology Engineering ARCTIC COASTAL TUNDRA TEMPERATURE-DEPENDENCE METHANE FLUXES INTERIOR ALASKA CARBON STORAGE FOREST RESPIRATION LANDSCAPE THAW CO2 Ecology Environmental Environmental Sciences Song, Xiaoyan Wang, Genxu Ran, Fei Chang, Ruiying Song, Chunlin Xiao, Yao Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China |
topic_facet |
Soil Carbon Dioxide Flux Soil Methane Flux Topography Fire Boreal Foresta Science & Technology Life Sciences & Biomedicine Technology Environmental Sciences & Ecology Engineering ARCTIC COASTAL TUNDRA TEMPERATURE-DEPENDENCE METHANE FLUXES INTERIOR ALASKA CARBON STORAGE FOREST RESPIRATION LANDSCAPE THAW CO2 Ecology Environmental Environmental Sciences |
description |
Regional quantification of soil CO2 and CH4 fluxes in boreal forests remains difficult because of high landscape heterogeneity and fire disturbance coupled with a sparse measurements network. Most of the work focuses on the separate effects of fire or topography, and as a result, the spatial variability in the response of soil carbon flux to fire remains unclear. A two-year field experiment was conducted in the boreal forest of the DaXinganling Mountains to investigate the effects of topography (ridge and depression) and fire on soil CO2 and CH4 fluxes and to determine how the effects of fire vary with topography. The results showed that soil carbon flux to the atmosphere in this region was dominated by soil CO2 flux. Topography had significant effect on soil carbon fluxes, with higher soil CO2 emissions and CH4 uptakes on the ridge than in the depression, whether burned or not, and these topographical differences were amplified by fire. Fire significantly increased soil CO2 emissions and CH4 uptakes both in the depression and on the ridge. However, the factors that determined soil CO2 and CH4 fluxes and the extent of the response to fire varied with topography. Although the depression released less soil carbon to the atmosphere, the increase in Q(10) of soil CO2 flux and the permafrost degradation following fire in the depression indicated stronger positive feedbacks to climate warming. To concluded, topography regulated the effects of fire on soil carbon fluxes and might control the post-fire soil carbon flux feedbacks to climate warming. Therefore, large-scale predictions of soil carbon fluxes in response to fire in the boreal region must explicitly incorporate topographic features. (C) 2017 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Song, Xiaoyan Wang, Genxu Ran, Fei Chang, Ruiying Song, Chunlin Xiao, Yao |
author_facet |
Song, Xiaoyan Wang, Genxu Ran, Fei Chang, Ruiying Song, Chunlin Xiao, Yao |
author_sort |
Song, Xiaoyan |
title |
Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China |
title_short |
Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China |
title_full |
Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China |
title_fullStr |
Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China |
title_full_unstemmed |
Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China |
title_sort |
effects of topography and fire on soil co(2)and ch4 flux in boreal forestunderlain by permafrost in northeast china |
publishDate |
2017 |
url |
http://ir.imde.ac.cn/handle/131551/18689 https://doi.org/10.1016/j.ecoleng.2017.05.033 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Tundra Alaska |
genre_facet |
Arctic permafrost Tundra Alaska |
op_relation |
ECOLOGICAL ENGINEERING Song, Xiaoyan,Wang, Genxu,Ran, Fei,et al. Effects of topography and fire on soil CO(2)and CH4 flux in boreal forestunderlain by permafrost in northeast China[J]. ECOLOGICAL ENGINEERING,2017,106:35-43. http://ir.imde.ac.cn/handle/131551/18689 doi:10.1016/j.ecoleng.2017.05.033 |
op_doi |
https://doi.org/10.1016/j.ecoleng.2017.05.033 |
container_title |
Ecological Engineering |
container_volume |
106 |
container_start_page |
35 |
op_container_end_page |
43 |
_version_ |
1766346801111105536 |