土壤团聚体固碳研究进展

土壤团聚体固碳研究进展

陈建国;田大伦;闫文德;项文化;方晰

【期刊名称】《中南林业科技大学学报》

【年(卷),期】2011(031)005

【摘要】土壤团聚体是土壤结构的基本单位,也是一种特殊的有机-无机复合体.土壤团聚体中的碳主要以有机碳形式存在,有机碳的胶结作用是土壤团聚体形成的关键.土壤团聚体中有机碳的稳定机制包括化学稳定型、物理稳定型、生物稳定型三大类型.土壤团聚体的周转也表现为土壤有机碳的积累、分解过程.总之,土壤固存有机碳的功能主要是以土壤团聚体为主体的功能单位完成的,有机碳不同存在形式的转化贯穿团聚体形成、稳定及周转过程的始终.%The soil aggregate is the basic unit of soil structure, and also a special kind of organic-inorganic composite. Form of carbon in soil aggregates is mainly organic carbon, which cementation play a key role in formation of soil aggregates. Stability mechanism of organic carbon in soil aggregates include chemical, physics, and biological stability. The process of soil aggregates transforming also show a cycle of organic carbon accumulation-decompositioa In conclusion, carbon sequestration in soil is mainly accomplished in soil aggregates and working during the whole process of soil aggregates formation, stabilization and transforming.

【总页数】7页(74-80)

【关键词】土壤团聚体；固碳；稳定；周转；综述