Distribution of 210Po and 210Pb in the Prydz Bay and its adjacent sea areas and their estimate of particulate organic matter export

本研究依托中国第29次南极科学考察航次获得的210Po、210Pb数据，研究了普里兹湾及其邻近海域210Po、210Pb的生物地球化学行为，计算出颗粒有机物的输出通量，揭示了普里兹湾及其邻近海域的颗粒动力学特征。 普里兹湾及其邻近海域D210Po和D210Pb的比活度分别占到T210Po和T210Pb的90%以上，P210Po和P210Pb的份额不足10%。D210Po和D210Pb比活度在陆架区表现为低值，且由陆架向深海逐渐升高，反映了陆架区210Po、210Pb的清除作用强于陆坡及深海区。P210Po和P210Pb在上层海洋的比活度较高，绕极深层水对应的中深层水体较低，而近底层略有升高，...Water samples were collected during the 29th Chinese Antarctic Research Expedition in 2013 summer in order to evaluate particle dynamics in the Prydz Bay and its adjacent sea areas, including marine biogeochemical cycles of 210Po and 210Pb, and estimate export flux of particulate organic carbon (POC) in the upper water column. The activity concentrations of D210Po and D210Pb accounted for m...学位：理学硕士院系专业：海洋与地球学院_海洋化学学号：2232013115137