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Seasonal variations in carbon dioxide exchange fluxes at a taiga–tundra boundary ecosystem in Northeastern Siberia
https://nipr.repo.nii.ac.jp/records/16492
https://nipr.repo.nii.ac.jp/records/16492437bdb9f-59dc-46b1-9600-9ef693facde0
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2021-07-29 | |||||
タイトル | ||||||
タイトル | Seasonal variations in carbon dioxide exchange fluxes at a taiga–tundra boundary ecosystem in Northeastern Siberia | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Seasonal variations in carbon dioxide exchange fluxes at a taiga–tundra boundary ecosystem in Northeastern Siberia | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Carbon dioxide | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Eddy-covariance | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Taiga-tundra boundary | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Northeastern siberia | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Climate change | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Tei, Shunsuke
× Tei, Shunsuke× Morozumi, Tomoki× Kotani, Ayumi× Takano, Shinya× Sugimoto, Atsuko× Miyazaki, Shin× Shingubara, Ryo× Fan, Rong× Petrov, Roman× Starostin, Egor× Shakhmatov, Ruslan× Nogovitcyn, Aleksandr× Maximov, Trofim |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Arctic and boreal permafrost ecosystems in Eastern Siberia, considered crucial to the climate system and global carbon cycle, are particularly vulnerable to climate change. This study investigates carbon dioxide (CO2) exchange fluxes over northeastern Siberia from 2013 to 2015 in a taiga–tundra boundary ecosystem for which such measurements are scarce. The growing season (May–September) net CO2 exchange flux (NEE) was −39.4 (−60.1 to −20.2) gCm−2, with ecosystem respiration (RE) = 306.2 (288.1–317.9) gCm−2 and gross primary production (GPP) = −345.5 (−372.5 to −317.7) gCm−2. Microclimatic factors determining these CO2 exchange fluxes change seasonally. These fluxes are significantly affected by the timing of the onset of C uptake, which is reflected by changes in the soil temperature in spring and early summer, following which fluxes respond well to the photosynthetic photon flux density, especially for NEE. These CO2 exchange fluxes at the northeastern Siberian taiga–tundra boundary ecosystem are significantly smaller than those previously reported at southern-taiga forest sites. Spring snow meltwater-rich soil moisture conditions render southern-taiga sites as stronger CO2 sinks in June than taiga–tundra boundary ecosystem, which may be largely responsible for the pronounced north–south gradient in growing season NEE. | |||||
書誌情報 |
en : Polar Science 巻 28, p. 100644, 発行日 2021-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2021.100644 | |||||
関連名称 | 10.1016/j.polar.2021.100644 |