土壤中木质素的研究进展

An Overview of Studies on Lignin in Soil

木质素是地球上最丰富的芳香族化合物,是土壤中非常稳定的有机组分,也是影响土壤有机碳循环的重要物质,因此,研究木质素在农田土壤中的积累对于土壤碳素的循环过程以及土壤有机碳的截获具有十分重要的意义。本文对土壤中木质素的分类和来源、测定及表征方法进行了综合介绍,并着重评述了木质素对于土壤有机碳循环的贡献、在土壤中的保持机制及影响木质素在土壤中降解和积累特性的因素,以期为我国开展土壤木质素的相关研究提供理论参考。

Lignin is the most abundant aromatic compound,which is a stable part of soil organic matter and crucial for the cycling and sequestration of soil organic carbon.Therefore,it is significant to study the accumulation of lignin in soil for organic carbon sequestration in carbon cycling on farmland.This paper summarized the classification,origin,determination method,degradation and accumulation of lignin in soil as well as the influencing factors so as to provide introductive knowledge and theoretical reference for the study of soil lignin in China.