Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland
Taiga–tundra boundary ecosystems are affected by climate change. Methane (CH4) emissions in taiga–tundra boundary ecosystems have sparsely been evaluated from local to regional scales. We linked in situ CH4 fluxes (2009–2016) with vegetation cover, and scaled these findings to estimate CH4 emissions...
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ftdoajarticles:oai:doaj.org/article:ab0f203e14684d1486a05171ee019932 2023-05-15T17:57:56+02:00 Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland T. Morozumi R. Shingubara R. Suzuki H. Kobayashi S. Tei S. Takano R. Fan M. Liang T. C. Maximov A. Sugimoto 2019-01-01T00:00:00Z https://doi.org/10.1080/16000889.2019.1581004 https://doaj.org/article/ab0f203e14684d1486a05171ee019932 EN eng Stockholm University Press http://dx.doi.org/10.1080/16000889.2019.1581004 https://doaj.org/toc/1600-0889 1600-0889 doi:10.1080/16000889.2019.1581004 https://doaj.org/article/ab0f203e14684d1486a05171ee019932 Tellus: Series B, Chemical and Physical Meteorology, Vol 71, Iss 1 (2019) ch4 flux high-resolution vegetation mapping remote sensing scaling chamber flux measurement Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1080/16000889.2019.1581004 2022-12-31T01:39:52Z Taiga–tundra boundary ecosystems are affected by climate change. Methane (CH4) emissions in taiga–tundra boundary ecosystems have sparsely been evaluated from local to regional scales. We linked in situ CH4 fluxes (2009–2016) with vegetation cover, and scaled these findings to estimate CH4 emissions at a local scale (10 × 10 km) using high-resolution satellite images in an ecosystem on permafrost (Indigirka lowland, north-eastern Siberia). We defined nine vegetation classes, containing 71 species, of which 16 were dominant. Distribution patterns were affected by microtopographic height, thaw depth and soil moisture. The Indigirka lowland was covered by willow-dominated dense shrubland and cotton-sedge-dominated wetlands with sparse larch forests. In situ CH4 emissions were high in wetlands. Lakes and rivers were CH4 sources, while forest floors were mostly neutral in terms of CH4 emission. Estimated local CH4 emissions (37 mg m−2 d−1) were higher than those reported in similar studies. Our results indicate that: (i) sedge and emergent wetland ecosystems act as hot spots for CH4 emissions, and (ii) sparse tree coverage does not regulate local CH4 emissions and balance. Thus, larch growth and distribution, which are expected to change with climate, do not contribute to decreasing local CH4 emissions. Article in Journal/Newspaper permafrost taiga Tundra Siberia Directory of Open Access Journals: DOAJ Articles Indigirka ENVELOPE(149.609,149.609,70.929,70.929) Tellus B: Chemical and Physical Meteorology 71 1 1581004 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ch4 flux high-resolution vegetation mapping remote sensing scaling chamber flux measurement Meteorology. Climatology QC851-999 |
spellingShingle |
ch4 flux high-resolution vegetation mapping remote sensing scaling chamber flux measurement Meteorology. Climatology QC851-999 T. Morozumi R. Shingubara R. Suzuki H. Kobayashi S. Tei S. Takano R. Fan M. Liang T. C. Maximov A. Sugimoto Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland |
topic_facet |
ch4 flux high-resolution vegetation mapping remote sensing scaling chamber flux measurement Meteorology. Climatology QC851-999 |
description |
Taiga–tundra boundary ecosystems are affected by climate change. Methane (CH4) emissions in taiga–tundra boundary ecosystems have sparsely been evaluated from local to regional scales. We linked in situ CH4 fluxes (2009–2016) with vegetation cover, and scaled these findings to estimate CH4 emissions at a local scale (10 × 10 km) using high-resolution satellite images in an ecosystem on permafrost (Indigirka lowland, north-eastern Siberia). We defined nine vegetation classes, containing 71 species, of which 16 were dominant. Distribution patterns were affected by microtopographic height, thaw depth and soil moisture. The Indigirka lowland was covered by willow-dominated dense shrubland and cotton-sedge-dominated wetlands with sparse larch forests. In situ CH4 emissions were high in wetlands. Lakes and rivers were CH4 sources, while forest floors were mostly neutral in terms of CH4 emission. Estimated local CH4 emissions (37 mg m−2 d−1) were higher than those reported in similar studies. Our results indicate that: (i) sedge and emergent wetland ecosystems act as hot spots for CH4 emissions, and (ii) sparse tree coverage does not regulate local CH4 emissions and balance. Thus, larch growth and distribution, which are expected to change with climate, do not contribute to decreasing local CH4 emissions. |
format |
Article in Journal/Newspaper |
author |
T. Morozumi R. Shingubara R. Suzuki H. Kobayashi S. Tei S. Takano R. Fan M. Liang T. C. Maximov A. Sugimoto |
author_facet |
T. Morozumi R. Shingubara R. Suzuki H. Kobayashi S. Tei S. Takano R. Fan M. Liang T. C. Maximov A. Sugimoto |
author_sort |
T. Morozumi |
title |
Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland |
title_short |
Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland |
title_full |
Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland |
title_fullStr |
Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland |
title_full_unstemmed |
Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland |
title_sort |
estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern siberian lowland |
publisher |
Stockholm University Press |
publishDate |
2019 |
url |
https://doi.org/10.1080/16000889.2019.1581004 https://doaj.org/article/ab0f203e14684d1486a05171ee019932 |
long_lat |
ENVELOPE(149.609,149.609,70.929,70.929) |
geographic |
Indigirka |
geographic_facet |
Indigirka |
genre |
permafrost taiga Tundra Siberia |
genre_facet |
permafrost taiga Tundra Siberia |
op_source |
Tellus: Series B, Chemical and Physical Meteorology, Vol 71, Iss 1 (2019) |
op_relation |
http://dx.doi.org/10.1080/16000889.2019.1581004 https://doaj.org/toc/1600-0889 1600-0889 doi:10.1080/16000889.2019.1581004 https://doaj.org/article/ab0f203e14684d1486a05171ee019932 |
op_doi |
https://doi.org/10.1080/16000889.2019.1581004 |
container_title |
Tellus B: Chemical and Physical Meteorology |
container_volume |
71 |
container_issue |
1 |
container_start_page |
1581004 |
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1766166449669275648 |