| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2023-09-28 |
| タイトル |
|
|
タイトル |
A Spatially Integrated Dissolved Inorganic Carbon (SiDIC) Model for Aquatic Ecosystems Considering Submerged Vegetation |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| アクセス権 |
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|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
K. Nagatomo
K. Nakayama
K. Komai
H. Matsumoto
K. Watanabe
A. Kubo
K. Tada
Y. Maruya
S. Yano
J. W. Tsai
H. C. Lin
M. Vilas
M. R. Hipsey
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Net ecosystem production (NEP) by submerged aquatic vegetation plays a substantial role in capturing atmospheric carbon dioxide into aquatic ecosystems. In lakes and estuaries, the net uptake of carbon dioxide by submerged aquatic vegetation is mediated by stratification of the water column which suppresses the vertical flux of carbon dioxide between the upper and lower layers. The presence of submerged aquatic vegetation can also affect the strength of stratification such that the interactions between vegetation, stratification, and NEP can moderate the carbon dioxide emissions. Since stratification can occur in lakes and estuaries, there is need for a new numerical approach able to consider the effect of submerged aquatic vegetation on stratification, NEP, and carbon dioxide. This study aims to develop a model to investigate how stratification, mediated by vegetation density and flexibility, affects the partial pressure of carbon dioxide (pCO2) and dissolved inorganic carbon (DIC). After initial parameterization of coefficients based on experimental work, horizontal and vertical variations in DIC were successfully modeled by a spatially (horizontally) integrated DIC (SiDIC) model, which was validated with field observations from an estuarine and freshwater lake case study. The SiDIC model was able to reproduce the pCO2 changes between daytime and nighttime throughout the water column. Sensitivity tests showed that the fluctuation of pCO2 was controlled by the suppression of stratification due to the density of submerged aquatic vegetation. The results highlight the importance of resolving vegetation-induced stratification when modeling the carbon budget within freshwater lakes and coastal environments. |
|
言語 |
en |
| 書誌情報 |
en : Journal of Geophysical Research: Biogeosciences
巻 128,
号 2,
発行日 2023-02-02
|
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
2169-8953 |
| DOI |
|
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1029/2022JG007032 |
| 権利 |
|
|
言語 |
en |
|
権利情報 |
c 2022 American Geophysical Union |
| 出版者 |
|
|
出版者 |
American Geophysical Union |
|
言語 |
en |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
JGR Biogeosciences - 2023 - Nagatomo.pdf (1.8 MB)
