Changing concentrations of CO, CH(4), C(5)H(8), CH(3)Br, CH(3)I, and dimethyl sulfide during the Southern Ocean Iron Enrichment Experiments.
Changing concentrations of CO, CH(4), C(5)H(8), CH(3)Br, CH(3)I, and dimethyl sulfide during the Southern Ocean Iron Enrichment Experiments.
复制标题
南大洋铁富集实验期间 CO、CH(4)、C(5)H(8)、CH(3)Br、CH(3)I 和二甲硫醚浓度的变化。
DOI：
10.1073/pnas.0402744101
复制
发表时间：
2004
影响因子：
11.1
通讯作者：
F. Rowland
中科院分区：
文献类型：
--
作者：
O. Wingenter;K. Haase;P. Strutton;G. Friederich;S. Meinardi;D. Blake;F. Rowland
海洋铁(Fe)施肥实验促进了人们对Fe如何调节生物生产力和海-气二氧化碳(CO(2))交换的理解。然而，人们对添加铁导致的卤代烃和其他气体的生产和消费知之甚少。除了代谢无机碳，海洋微生物还会产生和消耗许多其他微量气体。其中几种气体分别影响全球气候、平流层臭氧浓度或当地的光化学，以前在铁浓缩实验中还没有被量化。我们描述了部分溶解痕量气体的结果，包括甲烷(CH(4))、异戊二烯(C(5)H(8))、甲基溴(CH(3)BR)、二甲硫化物和氧(O(2))，这些气体在施铁后增加，以及在南大洋铁富集实验中观察到的一氧化碳(CO)、甲基碘(CH(3)I)和CO(2)浓度的相关下降。
Oceanic iron (Fe) fertilization experiments have advanced the understanding of how Fe regulates biological productivity and air-sea carbon dioxide (CO(2)) exchange. However, little is known about the production and consumption of halocarbons and other gases as a result of Fe addition. Besides metabolizing inorganic carbon, marine microorganisms produce and consume many other trace gases. Several of these gases, which individually impact global climate, stratospheric ozone concentration, or local photochemistry, have not been previously quantified during an Fe-enrichment experiment. We describe results for selected dissolved trace gases including methane (CH(4)), isoprene (C(5)H(8)), methyl bromide (CH(3)Br), dimethyl sulfide, and oxygen (O(2)), which increased subsequent to Fe fertilization, and the associated decreases in concentrations of carbon monoxide (CO), methyl iodide (CH(3)I), and CO(2) observed during the Southern Ocean Iron Enrichment Experiments.