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渤海和北黄海有色溶解有机物(CDOM)的分布特征和季节变化 期刊论文
环境科学, 2018, 卷号: 40, 期号: 03, 页码: 1198-1207
作者:  刘兆冰;  梁文健;  秦礼萍;  唐建辉
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有色溶解有机物(CDOM)  紫外-可见光吸收光谱  三维荧光光谱(EEM)  平行因子分析  分布特征  季节变化  渤海和北黄海  
磷和金属对荣成天鹅湖水体碱性磷酸酶活性和动力学性质的影响研究 期刊论文
环境科学学报, 2018, 卷号: 38, 期号: 10, 页码: 4083-4089
作者:  吕迎春;  孙志伟;  宋佳伟;  徐刚
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碱性磷酸酶  动力学特征  竞争性抑制  天鹅湖  
渤海三湾表层水域细菌群落结构多样性及其环境因子分析 期刊论文
微生物学通报, 2018, 卷号: 45, 期号: 09, 页码: 1956-1971
作者:  王彩霞;  王毅波;  刘鹏远;  吴霖;  孙延瑜;  胡晓珂
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渤海  高通量测序  微生物多样性  细菌  
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
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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.