n.反硝化作用；脱硝作用，脱氮作用

Denitrification is a biological process that converts nitrate into nitrogen gas (N2) in an oxygen-limited environment.
还原硝化是一种在缺氧环境中将硝酸盐转化为氮气（N2）的生物过程。
Agricultural runoff can contribute to denitrification in waterways, leading to eutrophication.
农业径流可能导致水体中的硝化作用，进而引发富营养化。
In soil, denitrification is often followed by nitrification, where nitrate is converted back to nitrite and then ammonia.
在土壤中，硝化通常紧接着还原硝化，硝酸盐被转化为亚硝酸盐，然后进一步转化为氨。
Wastewater treatment plants employ denitrification processes to remove excess nitrogen from sewage.
污水处理厂利用还原硝化过程来从污水中去除过多的氮。
The rate of denitrification can be influenced by factors such as temperature, pH, and the presence of specific microorganisms.
还原硝化的速率受温度、pH值以及特定微生物的存在等因素影响。
Microbes play a crucial role in denitrification, breaking down complex organic compounds into simpler forms through this process.
细菌在这个过程中起关键作用，将复杂的有机化合物分解为更简单的形式。
Denitrification helps to mitigate climate change by reducing the amount of atmospheric nitrogen oxides, which contribute to greenhouse gas emissions.
还原硝化有助于缓解气候变化，因为它减少了大气中导致温室气体排放的氮氧化物含量。
Scientists study denitrification to better understand how it affects the nitrogen cycle and ecosystem health.
科学家研究还原硝化以更好地理解它如何影响氮循环和生态系统健康。
Monitoring soil moisture levels is essential for managing denitrification rates in rice paddies, as waterlogging can enhance the process.
监测稻田土壤湿度对于管理还原硝化速率至关重要，因为过度积水会促进这一过程。
Environmental engineers are developing new technologies to enhance denitrification in order to reduce pollution in water bodies.
环境工程师正在开发新技术以增强还原硝化，从而减少水体污染。