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不同铁浓度对一种颗石藻Emiliania huxleyi的生长及光合作用的影响 期刊论文
海洋科学, 2022, 卷号: 46, 期号: 12, 页码: 50-62
作者:  任庆敏;  林燕妮;  王寅初;  秦松
收藏  |  浏览/下载：76/0  |  提交时间：2023/08/16
coccolithophores  iron limitation  photosynthesis  chlorophyll fluorescence  颗石藻  铁限制  光合  叶绿素荧光  
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：516/229  |  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.  
水分条件对滨海芦苇湿地土壤微生物多样性的影响 期刊论文
海洋科学, 2017, 卷号: 41, 期号: 5, 页码: 144-152
作者:  张洪霞;  郑世玲;  魏文超;  王炳臣;  王欧美;  刘芳华
收藏  |  浏览/下载：186/0  |  提交时间：2020/07/07
water condition  reed wetlands  microbial community  iron-reducing bacteria  diversity  水分条件  芦苇湿地  微生物群落  铁还原菌  多样性