Stability of Marine Organic Matter Respiration Stoichiometry
Stability of Marine Organic Matter Respiration Stoichiometry
复制标题
海洋有机物呼吸化学计量的稳定性
DOI:
10.1029/2019gl085564
复制
发表时间:
2020
影响因子:
5.2
通讯作者:
Matsumoto, K.
中科院分区:
文献类型:
--
作者:
Tanioka, T.;Matsumoto, K.
The amount of oxygen consumed during organic matter remineralization critically depends on how much organic carbon is remineralized per unit dissolved oxygen respired (respiratory quotient, RQ) but the global distribution and the mechanisms that control RQ are not well understood. Here we estimate RQ in the surface ocean by using two independent methods, one using satellite‐derived macromolecular composition of phytoplankton and another using objectively gridded nutrient data. Both methods yield mean RQ of ~0.7 with small spatial variability consistent with previous estimates. This pattern is likely to be a result of phytoplankton protein content universally exceeding those of carbohydrates and lipids. At face value, the relative stability of RQ suggests that the remineralization stoichiometry will not affect the ongoing deoxygenation of the world ocean. However, the possibility remains that RQ may increase in the future (e.g., organic matter becoming more carbohydrate‐dominated) and thus ameliorate deoxygenation.
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影响因子:
2.8
作者:
J. Navarro;E. Clasing;G. Urrutia;G. Asencio;R. Stead;C. Herrera
通讯作者:
C. Herrera
影响因子:
5.3
作者:
Fanesi, Andrea;Wagner, Heiko;Wilhelm, Christian
通讯作者:
Wilhelm, Christian
影响因子:
5.2
作者:
Katsumi Matsumoto
通讯作者:
Katsumi Matsumoto
影响因子:
5.2
作者:
H. Thomas
通讯作者:
H. Thomas
影响因子:
30.7
作者:
Toseland, A.;Daines, S. J.;Mock, T.
通讯作者:
Mock, T.