Abstract: As the main part of terrestrial ecosystems, forest ecosystem is a renewable circulation system. In its evolution course, forest ecosystem stored a large number of the information of environmental changes, and plays an important role in the global carbon sink. Phytolith-occluded carbon (PhytOC) is considered as a pathway of longterm carbon sequestration in forest ecosystem. Research of phytolith and PhytOC in forest ecosystems is of great significance to estimate the long-term carbon sequestration potential of forest ecosystems and to address global warming. Here, we reviewed the differences in the content and existing forms of phytolith and PhytOC in plant, litter and soil, and their migration dynamics. The turnover and content of phytolith and PhytOC among different channels are stable as they are affected by both internal and external factors. Quantitative information on phytolith and PhytOC is lacking, especially for ecologically fragile areas. In the future, it is necessary to strengthen the study on the formation mechanism of phytolith and PhytOC, estimate carbon sequestration of different organs of plants, enlarge spatial and temporal scales, and intensify the study of PhytOC in ecologically fragile areas, so as to provide reference for accurate estimation of carbon sequestration in phytoliths in forest ecosystems.

Key words: optimal model, net photosynthetic rate, dark respiration rate., photosynthesis-light response curve, light saturation point, Larix olgensis, light compensation point