Professor Zhang Yangjian's team publishes an important review article in Nature Reviews Earth & Environment  

Recently, Professor Zhang Yangjian from our university, in collaboration with relevant scholars from various institutions in countries including the Chinese Academy of Sciences, Peking University, the United States, Canada, Germany, and France, published a review article titled "Seasonal CO2 Amplitude in Northern High Latitudes" in the prestigious journal Nature Reviews Earth & Environment. Professor Zhang is the sole corresponding author, and Hebei University is the primary corresponding author institution.

The article comprehensively reviews the trends, causes, and future research directions regarding the seasonal cycle amplitude of atmospheric CO2 concentrations in high-latitude regions of the Northern Hemisphere. It indicates that the increase in productivity during the growing season due to climate warming is the primary factor driving changes in the seasonal cycle amplitude of atmospheric CO2 concentrations. Additionally, the increase in respiration during the non-growing season, also a consequence of climate warming, serves as an important driving force. Current Earth system models require improved simulations of landscape processes such as wildfire disturbances, permafrost thawing, and vegetation changes to better model the seasonal variations in the carbon cycle. Finally, the article proposes future research directions focusing on enhancing ecosystem observation networks and improving terrestrial ecosystem model simulations.