Occurrence and Turnover of Biogenic Sulfur in the Bering Sea During Summer
Occurrence and Turnover of Biogenic Sulfur in the Bering Sea During Summer
复制标题
夏季白令海生物硫的赋存与周转
DOI：
10.1002/2017jc013299
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发表时间：
2017-11
影响因子：
3.6
通讯作者：
Lyu Yang
中科院分区：
文献类型：
--
作者：
Li Cheng-Xuan;Wang Bao-Dong;Yang Gui-Peng;Wang Zi-Cheng;Chen Jian-Fang;Lyu Yang
2012年7月至8月，对白令海溶解态二甲基硫（DMS）、其前体二甲基磺基丙酸盐（DMSPd和DMSPp）和叶绿素a（Chl a）的水平/地理变化以及影响二甲基硫化合物浓度的海洋学参数进行了研究。与Chl a相似，表层DMS和DMSPp含量以及DMS（P）的产生和消耗速率从中央海盆到陆架呈现出下降的梯度，高值区出现在中央海盆、陆坡区和阿纳迪尔海峡，低值区出现在中、外陆架。在位于白令海盆地西南部的含盐的白令海盆地深水（> 2，000 m）中测得了相当高的DMS和DMSP值，这是由于2，000 m深处再悬浮物的释放以及内源性底栖细菌和蓝细菌种群产生的DMSP。在白令海的表层沃茨和上层水体中，叶绿素a与DMSPp和DMS呈正相关，而在白令海的内陆架中，DMS与营养盐（溶解无机氮[DIN]、磷和硅酸盐）呈显著负相关。二甲硫醚的微生物消耗大约比二甲硫醚的海气交换快6.26倍，表明地表水中的二甲硫醚主要是通过生物消耗而不是逃逸到大气中。结果表明，该海域DMS的平均通量为4.66 μmol/（m2·d），海洋生物DMS排放对该海域硫收支的贡献占主导地位。
The horizontal/geographical variations in dissolved dimethylsulfide (DMS), its precursor dimethylsulfoniopropionate (DMSPd and DMSPp), and chlorophyll a (Chl a), as well as the oceanographic parameters influencing the concentrations of dimethylated sulfur compounds, were investigated in the Bering Sea from July to August 2012. Similar to Chl a, the surface DMS and DMSPp levels, as well as DMS(P) production and consumption rates, exhibited a declining gradient from the central basin to the continental shelf, with high-value areas appearing in the central basin, the slope regions, and Anadyr Strait but a low-value area occurring on the outer-middle continental shelf. Considerably high values of DMS and DMSP were measured in the saline Bering Sea Basin Deep Water (>2,000 m) located at the southwest of the Bering Basin because of the release of resuspension in 2,000 m depth and the DMSP production from endogenous benthic bacteria and cyanobacteria population. Chl a was positively correlated with DMSPp and DMS in the surface waters and the upper water of the basin, whereas significant negative correlations were found between DMS and nutrients (dissolved inorganic nitrogen [DIN], phosphorus, and silicate) in the inner shelf of the Bering Sea. DMS microbial consumption was approximately 6.26 times faster than the DMS sea-air exchange, demonstrating that the major loss of DMS in the surface water occurred through biological consumption relative to evasion into the atmosphere. Average sea-to-air DMS fluxes were estimated to be 4.66 μmol/(m2·d), and consequently oceanic biogenic DMS emission had a dominant contribution to the sulfur budget over the observational area.
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影响因子：
--
作者：
A. Mangeney;F. Califano
通讯作者：
A. Mangeney;F. Califano
影响因子：
2.5
作者：
R. Simó;C. Pedrós-Alió;G. Malin;J. Grimalt
通讯作者：
R. Simó;C. Pedrós-Alió;G. Malin;J. Grimalt
DOI：
10.1016/j.dsr2.2008.10.023
发表时间：
2009-08
影响因子：
3
作者：
J. C. Kinney;W. Maslowski;S. Okkonen
通讯作者：
J. C. Kinney;W. Maslowski;S. Okkonen
影响因子：
18.9
作者：
Xiao-Ya Chen;Zhi-hong Xu
通讯作者：
Xiao-Ya Chen;Zhi-hong Xu
影响因子：
2.3
作者：
G. Panteleev;M. Yaremchuk;V. Luchin;D. Nechaev;Takashi Kukuchi
通讯作者：
G. Panteleev;M. Yaremchuk;V. Luchin;D. Nechaev;Takashi Kukuchi