厦门大学同位素海洋化学实验室

2021.04.02

9:00

周隆泉楼

A3-206

姜朝华

The study on the controlled mechanism and   bioavailable activity of phosphate oxygen isotope in soil

徐超

万惠芸

Enzyme-catalyzed exchange of inorganic phosphate   with oxygen isotopes of water

胡嘉舜

A revision of the ²¹⁰Po-²¹⁰Pb   method for the calculation of the export flux of POC

报告提要

姜朝华：1. Why the phosphate oxygen isotope could be used as a P tracer tool? 2.   The bioavailability of different forms P in soil, and its significance!

万惠芸：1. An ancient phosphate thermometer is established based on the   relationship between phosphate oxygen isotope and temperature in biological   phosphate minerals. 2. It is verified that the exchange reaction is   thermodynamic equilibrium reaction catalyzed by enzyme under laboratory   conditions. 3. Putting forth a controlled laboratory-derived equation for   DIP–water equilibrium O-isotope fractionation and temperature from 3 to 37   °C.

胡嘉舜：1. Introduction to the method. 2. Validating assumptions of the   One-Dimensional Steady State model.

2021.04.16

9:00

周隆泉楼一楼多功能厅

陈阳军

Nitrite in the Southern Ocean

康佳雯

徐超

硝酸盐氮、氧同位素指示的南海真光层水体中的同化吸收和硝化作用

报告提要

陈阳军：1. Nitrite cycle in the sunlit euphotic zone. 2. Unique isotopic   signatures of nitrite in the Southern Ocean. 3. Isotopic exchange reaction   between nitrate and nitrite in the Southern Ocean.

徐超：硝酸盐氮、氧同位素指示的南海真光层水体中的同化吸收和硝化作用.

2021.04.23

9:00

周隆泉楼

A3-206

冯娜

半封闭性海湾²³⁴Th的季节变化及其对生源要素输出的示踪

许子夫

宁江豪

南海固氮作用及与桡足动物的联系

报告提要

冯娜：1. 陆架边缘海颗粒物研究的意义. 2. ²³⁴Th在浅水区示踪颗粒动力学存在的问题. 3. 大亚湾²³⁴Th的季节变化及其对生源要素输出的示踪. 4. 胶州湾²³⁴Th的季节变化及其对生源要素输出的示踪.

宁江豪：1. 桡足动物的氮同位素组成. 2. 南海固氮作用的分布.

2021.04.30

9:00

周隆泉楼

A3-206

范玲芳

Significant Nitrification in the Indian sector of   the Southern Ocean

胡嘉舜

唐震

Separation of barite from marine sediments

报告提要

范玲芳：Significant Nitrification in the Indian sector of the Southern Ocean.

唐震：1. Introduction of barite separation from marine sediments. 2. Discussion   on the applicability of barite separation methods in marine sediments. 3.   Problems and prospects of barite separation methods.