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Microbiological Processes of Organic Matter Destruction in the Bottom Sediments of the Baltic Sea

机译：波罗的海底部沉积物中有机物破坏的微生物过程

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摘要

Microbiological processes of organic matter (OM) destruction in the bottom sediments of the Baltic Sea in the winter period were investigated. The daily rates of some processes reached are as follows: total destruction of OM was 10-130 mg C/m~2,absorption of O_2 was 0-59 mg/m~2, release of CO_2 was 18-120 mg C/m~2, assimilation of CO_2 was 2.6-36 mg C/m~2, sulfate reduction was 2,7-90 mg S/m~2, methanogenesis was 0.06-5.4 ml CH_4/m~2, and aerobic methane oxidation was 0-4.3 ml CH_4/m~2. It was found that the major part of OM in the sediments is destroyed anaerobically. As this occurs, the reduced products of decay are incorporated into bacterial metabolism. In the winter, the products of chemosynthesis and methane compensate for the shortage of OM photosynthesis in the ecosystem.
机译：考察了冬季波罗的海底部沉积物中有机物（OM）破坏的微生物过程。达到的某些过程的日速率为：OM的总破坏为10-130 mg C / m〜2，O_2的吸收为0-59 mg / m〜2，CO_2的释放为18-120 mg C / m。 〜2，CO_2同化量为2.6-36 mg C / m〜2，硫酸盐还原量为2,7-90 mg S / m〜2，甲烷生成量为0.06-5.4 ml CH_4 / m〜2，好氧甲烷氧化为0 -4.3毫升CH_4 / m〜2。发现沉积物中OM的大部分被厌氧破坏。当这种情况发生时，减少的衰变产物被并入细菌代谢中。在冬季，化学合成和甲烷的产物弥补了生态系统中OM光合作用的不足。

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