磷循环及磷组分在古海洋环境重建中的应用
摘要
Phosphorus (P), as a central component of DNA and RNA of life on earth, is the major limiting nutrient for marine productivity on geological time scales, and plays an important role in regulating the global atmosphere-ocean redox state and Earth 's climate.This paper summarizes the source and sink of P in the ocean, and expounds the composition of P speciation and its application in the study of P burial, diagenetic transformations and marine P cycle, and analyzes the sedimentary P characteristics in the ancient strata and their links with life-environment evolution, which helps clarify features and mechanism of P cycling in different geological periods and its feedback on atmosphere-ocean-ecology system.This is of far-reaching significance for understanding the relationship between life and Earth 's environment.