Environmental controls on nitrogen cycling in coastal sediments

人类活动目前正在以前所未有的程度改变全球元素循环。例如，Haber Bosch工艺的发明，以及随之而来的从大气氮中制造肥料的能力，极大地增加了沿海水域的溶解氮(硝酸盐、亚硝酸盐和铵)的输入。由于氮通常是水生系统中的限制性营养物质，因此初级生产力的增加和随后的有机物沉积可能会导致O

Human activity is currently altering global elemental cycles to an unprecedented degree. For example, the invention of the Haber Bosch process, and with it, the ability to make fertilizer from atmospheric nitrogen, has greatly increased dissolved nitrogen (nitrate, nitrite, and ammonium) inputs to coastal waters. Because nitrogen is often a limiting nutrient in aquatic systems, the resulting increase in primary production and subsequent organic matter deposition can lead to O