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渤海及牟平海洋牧场海域铂钯铑的地球化学特征 学位论文
理学博士, 北京: 中国科学院研究生院, 2018
作者:  刘凯
Adobe PDF(55975Kb)  |  收藏  |  浏览/下载：617/7  |  提交时间：2018/12/27
铂族元素  海水  有机质  颗粒物  地球化学行为  
生物地球化学锰循环中的微生物胞外电子传递机制 期刊论文
微生物学报, 2018, 卷号: 58, 期号: 04, 页码: 546-559
作者:  刘进超;  王欧美;  李佳佳;  刘芳华
Adobe PDF(1684Kb)  |  收藏  |  浏览/下载：469/150  |  提交时间：2020/07/08
锰的生物地球化学循环  微生物胞外电子传递  细胞色素c  异化锰还原  环境意义  
集胞藻PCC 6803中丝氨酸/苏氨酸激酶SpkC对高温胁迫的响应 期刊论文
微生物学报, 2018, 卷号: 58, 期号: 10, 页码: 1732-1742
作者:  赵佳琳;  陈军;  崔玉琳;  于淑贤;  陈高;  秦松
Adobe PDF(2002Kb)  |  收藏  |  浏览/下载：309/79  |  提交时间：2020/07/08
集胞藻PCC 6803  丝氨酸/苏氨酸激酶SpkC  高温胁迫  
烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系 期刊论文
海洋科学, 2018, 卷号: 42, 期号: 8, 页码: 90-97
作者:  姜明;  赵国强;  李兆冉;  盛彦清
浏览  |  Adobe PDF(1528Kb)  |  收藏  |  浏览/下载：528/230  |  提交时间：2020/07/08
还原性无机硫  活性铁  深层柱状沉积物  硫化度  矿化度  Reduced inorganic sulfur  Reactive iron  Deep core sediments  Degree of pyritization  Degree of sulfidity  The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer  reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.