Soil organic carbon accumulation and aggregate stabilization processes and their interactions
Soil organic carbon and soil aggregates are important indexes for evaluating soil quality,and they interact with each other.Soil organic carbon promotes the formation of soil aggregates,and soil aggregates protect and sequester soil organic carbon.In this paper,the relevant studies on soil organic carbon and soil aggregates in recent years were reviewed,the significance and influencing factors of soil organic carbon and soil aggregates on soil quality were sorted out,and the interaction mechanism between soil organic carbon and soil aggregates was expounded.Reasonable fertilization,tillage and other farmland management measures could regulate soil microorganisms,change the decomposition of soil organic matter and the rate of organic carbon sequestration and decomposition.It also could affect the structure and stability of soil aggregates.Soil organic carbon promoted the formation of soil aggregates through soil organic and inorganic cementation,plant roots and mycelia and organic matter filling.On the contrary,soil aggregates could reduce soil organic carbon mineralization by wrapping soil organic carbon,so as to achieve physical protection of soil organic carbon.In summary,the research focus of increasing soil organic carbon content and enhancing soil aggregate stability in the future was discussed,in order to provide a reference for improving soil quality.
万方数据
维普
