生物炭对障碍性土壤改良修复的作用机理

Function Mechanism of Bio-carbon-based Improvement and Restoration of Defective Soil

生物质固体废弃物在绝氧热裂解条件下转化为生物炭。人类以生物炭的形式完成碳的"捕获"(捕集、捕捉),又通过生物炭的土地利用实现碳的"存储"(封存、固存)。生物炭的土地利用不仅实现了碳存储,且能改良和修复各类障碍性土壤。本文重点阐述生物炭对盐渍土壤、酸性土壤、污染土壤改良修复的作用机理,为生物炭大面积土地利用与障碍性低产土壤改良修复提供理论支撑。

Solid biologic waste can become bio-carbon after anoxybiotic pyrolytic reaction. Human being achieved carbon collection in the form of bio-carbon, and actualized carbon storage through bi-carbon-based soil utilization. Applying bio-carbon to soil not only conduces to carbon storage, but also helps to improve and repair various soil types. This paper mainly focuses on description of the function mechanism of bio-carbon-based improvement and repairing of polluted soil, which provides a theoretical foundation to massive use of bio-carbon to salinized soil, acid soil and low-yield soil improvements.