부산대학교 도서관

Nitrification converts ammonia to nitrate by using bacteria which is an essential transformation in the terrestrial nitrogen cycle and there are various factors which regulates the nitrification process. The rate of nitrification process and their regulations are the crucial area for assessing the enhanced human’s impact on the terrestrial nitrogen cycle. Factors such as pH, water potential, oxygen concentration, and temperature have an adverse effect on the rates of nitrification of environmental controls. Over the past two decades, the trace nitrogen gas of soil production such as nitric oxide received a lot of attention as this nitrogen gas have some important adverse effects on the environment. This nitric oxide is relatively a short-lived trace gas which reacts with the O2 in the troposphere for the production of air pollutant ozone. In terrestrial geothermal ecosystems, research has been found on the nitrogen biogeochemical cycle which recently have been energized by the discovery of thermophilic ammonia-oxidizing bacteria. In this chapter, an in-depth study of factors, regulation and measurement of nitrification which affects the nitrification rate in the terrestrial system, is discussed.