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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：623/7  |  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  
黄河三角洲滩涂—湿地—旱地土壤团聚体有机质组分变化规律 期刊论文
土壤学报, 2018, 卷号: 56, 期号: 2, 页码: 376-385
作者:  刘兴华,章海波,李远,代振飞,付传城,骆永明
浏览  |  Adobe PDF(485Kb)  |  收藏  |  浏览/下载：591/276  |  提交时间：2020/07/08
黄河三角洲  滨海土壤  土壤团聚体  颗粒态有机质  碳稳定性  碳源  Yellow River Delta  Coastal soils Soil aggregate  Particulate organic matter  Carbon stability  Carbon source  
样品处理方法对海洋沉积物有机碳稳定同位素测定的影响 期刊论文
海洋环境科学, 2018, 卷号: 37, 期号: 05, 页码: 780-784
作者:  谭扬;  吴学丽;  侯立杰
浏览  |  Adobe PDF(371Kb)  |  收藏  |  浏览/下载：593/330  |  提交时间：2020/07/08
沉积物  碳稳定同位素比值  酸洗法  酸蒸法  sediment  stable carbon isotope ratio  acid rinse method  hydrogen chloride fumigation method  
环青海湖区域植物稳定碳氮同位素空间分布规律及影响因素研究 期刊论文
鲁东大学学报(自然科学版), 2018, 卷号: 34, 期号: 02, 页码: 167-172
作者:  李雪双;  贺世杰;  金秉福;  王传远
浏览  |  Adobe PDF(938Kb)  |  收藏  |  浏览/下载：467/222  |  提交时间：2020/07/08
环青海湖区域  稳定碳、氮同位素  空间分布  影响因素  
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：579/248  |  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.