ADVANCE Fellows Award: Potential Soil Inorganic Carbon Sequestration as a Result of Cultivation in Mollisols

这项先进的研究将聚焦于世界上最重要的农业土壤之一--软土的土壤无机碳储存。这些肥沃土壤的耕作导致了土壤有机碳的大量流失，但耕作对土壤无机碳储量的影响尚未得到研究。要想降低大气中的二氧化碳浓度，就必须了解土壤中的无机碳及其在不同土壤，特别是具有重要农业意义的土壤(如软土)中，通过成壤碳酸盐的形成，在潜在的碳固存中的作用。本研究将：(1)研究土壤碳酸盐形成机制；(2)研究耕作对土壤无机碳储量的影响。土壤无机碳的研究对于理解全球碳循环及其与全球气候变化的关系至关重要。

This ADVANCE Fellowship will focus on soil inorganic carbon storage in Mollisols, which are among the most important agricultural soils in the world. Cultivation of these fertile soils leads to great soil organic carbon loss but the effect of cultivation on soil inorganic carbon storage has not been studied. Attempts to decrease the atmospheric CO2 concentration require understanding of soil inorganic carbon and its role in potential sequestration of carbon through pedogenic carbonate formation in different soils, especially soils of great agricultural importance like Mollisols. This research will: (1) study the mechanisms of pedogenic carbonate formation and (2) examine the effects of cultivation on soil inorganic carbon storage. Research on soil inorganic carbon is crucial in understanding global carbon cycle and its relation to global climate change.