Sedimentary Nitrogen Removal in the Pearl River Estuary in Autumn

珠江口作为珠江流域的入海口，位于华南广东省的最南端，其南面通向南海北部，周围紧邻着经济高度发达、人口稠密的珠江三角洲经济区。珠江口的氮循环受到周边区域的工业、农业、水产养殖和生活污水排放的影响日益严重，富营养化等一系列相关的生态负面效应随之而来。珠江口内部氮元素的迁移转化情况亟待研究了解。 本研究主要专注于珠江口内的水环境中沉积物内各种氮移除过程及其脱氮速率。 本研究采用了目前在脱氮研究领域最先进的同位素配对技术计算模式，此方法用氧化亚氮的氮同位素比值修正了厌氧铵氧化对反硝化速率计算造成的干扰，并且将各反应的氧化亚氮产率以及厌氧铵氧化的氮气产率都考虑进计算中；此种同位素配对计算模式可以在同...The Pearl River Estuary is the entrance of the Pearl River drainage basin to the sea, which is situated at the south end of Guangdong Province in South China and faced with the northern part of the South China Sea. A number of developed cities of the Pearl River Delta encircle the Pearl River Estuary. The nitrogen cycle system in the Pearl River Estuary has been severely perturbed by the stress of...学位：理学硕士院系专业：海洋与地球学院_海洋化学学号：2232012115129