ATMOSPHERIC DIMETHYL SULFIDE AND NATURAL SULFUR CYCLE
ATMOSPHERIC DIMETHYL SULFIDE AND NATURAL SULFUR CYCLE
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DOI：
10.1038/237452a0
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发表时间：
1972-01-01
期刊：
影响因子：
64.8
通讯作者：
RASMUSSE.RA
中科院分区：
文献类型：
--
作者：
LOVELOCK, JE;MAGGS, RJ;RASMUSSE.RA
在全球范围1 - 4，硫转移的所有自然过程模型都需要一些挥发性或气态硫化合物，通过提供硫从海洋通过空气转移到陆地表面的载体来完成循环。在过去，这一作用被分配给H2S，平均大气浓度为2×10− 10（体积）满足模型的传质需求。试图探测这些硫化氢浓度的尝试总是失败，更重要的是，海洋表面沃茨的氧化性太强，不允许硫化氢以足以维持2×10− 10（体积）的大气平衡浓度存在。许多元素形成挥发性的甲基衍生物; Bermer 5报告说，许多生物系统产生二甲基硫，其中最主要的是海藻。在此，我们认为二甲硫醚是一种天然硫化合物，它填补了最初分配给H2S的作用，即通过空气将硫从海洋转移到陆地表面。
ALL models of natural processes for the transfer of sulphur on a global scale1–4require some volatile or gaseous sulphur compound to complete the cycle by providing a vehicle for the transfer of sulphur from the sea through the air to the land surfaces. In the past, this role has been assigned to H2S and an average atmospheric concentration of 2×10−10by volume satisfied the mass transfer needs of the models. Attempts to detect the presence of these concentrations of H2S have always failed and, more important, the ocean surface waters are much too oxidizing to permit the existence of H2S at concentrations sufficient to sustain an atmospheric equilibrium concentration of 2×10−10by volume. Many elements form volatile methyl derivatives; Challenger5reported that many living systems produced dimethyl sulphide (DMS), and that prominent among them were marine algae. Here we suggest that DMS is the natural sulphur compound which fills the role originally assigned to H2S; that of transferring sulphur from the seas through the air to land surfaces.