厦门大学同位素海洋化学实验室

2020.07.25

09:00-12:00

周隆泉楼

A3-206

范玲芳

Water column-benthic coupling accounts for the driving force on potential nitrogen loss in the coastal water

范玲芳

陈阳军

The “Big Unknown” of the marine nitrite cycle

康佳雯

Source analysis of particulate organic matter (POM) in Laizhou Bay: determine the endmember

报告提要

范玲芳：1. Seasonal and spatial variation of potential denitrification rates in Daya Bay. 2. Denitrification coupled with primary production and the effect of autochthonous POC. 3. Enhanced denitrification through sediment resuspension. 4. Stoichiometry of C:N ratio limits the denitrification capacity. 5. Significance of the water potential denitrification.

陈阳军：1. Nitrite in the ocean. 2. The nitrite cycle in the upper ocean. 3. The nitrite cycle in the ODZs. 4. Discussion of the marine nitrite cycle. 5. The next research plan.

康佳雯：1. Analyze the impact of river, sewage and groundwater on Laizhou Bay. 2. Divide Laizhou Bay into Yellow River estuary, southwest coastal and east aquiculture area for the POM analysis. 3. Redetermine the source of the POM in Laizhou Bay.

2020.07.25

14:00-17:35

周隆泉楼

A3-206

林若兰

Phosphate uptake by algae: Study of the oxygen isotope fractionation effect

林若兰

许子夫

A New method for the preparation of phosphate oxygen isotope samples

杨睿

Extracellular oxygen isotope exchange between phosphate and natural water

黄奕文

The method of avoiding reabsorption in sequential extraction

张苡粼

Study on the Oxygen Isotope of Natural Organic Hydrolyzed Phosphorus

报告提要

林若兰：1. Experimental scheme related to biological uptake for phosphate. 2. Demonstration of experimental results. 3. Conclusion and discussion.

许子夫：1. The limitations of traditional methods. 2. Proposal and improvement of new methods. 3. Validation of applicability and purification effect of the new methods. 4. Advantages and disadvantages of the new methods.

杨睿：1. Background on extracellular pyrophosphatase catalyzed ¹⁸O exchange. 2. Experimental Design and Methods. 3. Current experimental progress. 4. Expected results.

黄奕文：1. Research background. 2. Explore ways to avoid reabsorption in sequential extraction. 3. Future work.

张苡粼：1. Natural organic phosphorus hydrolyzed and oxygen isotope method. 2. Future work.

2020.07.26

09:00-11:00

周隆泉楼

A3-206

王昕

Lateral transport of particulate matter in mesopelagic water of Northern South China Sea: by means ²¹⁰Po/ ²¹⁰Pb disequilibria and the

王易

王易

²¹⁰Po-²¹⁰Pb disequilibria at the southwestern margin of the Canada Basin

田杰

A method for the determination of ²¹⁰Pb, ²¹⁰Bi and ²¹⁰Po activities by using simultaneously auto-plating on nickel sheets

报告提要

王昕：1. the deficiency of ²¹⁰Po in the twilight zone of NSCS. 2. export flux of ²¹⁰Po and TSM. 3. the evidence of lateral transport by the deficiency of ²¹⁰Po and the vertical distribution of dFe.

王易：1. Distribution and disequilibria of ²¹⁰Po and ²¹⁰Pb along a transect in the Western Arctic. 2. The influence of suspended particulate matter on ²¹⁰Pb distribution indicates different particle dynamics in surface water and pelagic water.

田杰：1. Research progress of ²¹⁰Bi. 2. Determination of the best conditions. 3. Rainwater sample analysis.