Carbonate Mineral Dissolution and Its Carbon Sink Effect in Chinese Loess

The relationship between the source and sink of atmospheric CO2 has always been a widely discussed issue in global climate change research. Recent studies revealed that chemical weathering carbonate rocks contributed to 1/3 (~0.5 Pg C/yr) missing carbon sinks (MCS) globally, there are still 2/3 MCS need be explored. As one main overburdened parts earth, loess is important driving factors for consumption. Here, we elaborated on dissolution process effect from silicate minerals loess. source/sink elucidated, mechanism formation secondary carbonates clarified. Additionally, commonly used methods identification primary summarized, study influencing also revealed. Based research results progress interpretations, prospects provide scientific basis further sinks.