腐殖质是植物残渣和动物排泄物的化学和生物降解及其变化的产物。虽然腐殖质的化学结构尚不清楚,但它的许多特性是由其功能基团(如羧基,脂肪族和芳香族羟基与羰基以及酰胺基团)的性质所决定的。最近研究表明腐殖质通过影响许多代谢过程(如呼吸作用,离 Humus is a product of the chemical and biological degradation of plant residues and animal waste and their changes. Although the chemical structure of humus is not clear, many of its properties are dictated by the nature of its functional groups, such as carboxyl, aliphatic and aromatic hydroxyl groups, as well as carbonyl and amide groups. Recent studies have shown that humus affects many metabolic processes (such as respiration, ionization)