红壤复合胶体腐殖质的特性  

Nature of humus in colloidal complex of red soil

作　　者：郭成达[1] 

机构地区：[1]福建师范大学地理系,福建福州350007

出　　处：《土壤通报》2000年第1期21-23,26,共4页Chinese Journal of Soil Science

摘　　要：对闽北6个样品测定结果表明,红壤复合胶体中C、N含量较高,其腐殖质的C/N和HA/FA、胡敏酸的芳构化度和腐殖质氧化稳定性系数均较重组小,而松结合态/紧结合态腐殖质的比值则较大.这些特性有利于土壤养分保存与供应和改善土壤结构.The contents of C and N in the colloidal complex of red soil was relatively high, whereas the values of C/N and HA/FA in humus, aromaticity of HA and the oxidative coefficients of humus were narrower than those in heavy fractions.However,the rate of steady C to loose C in humus was higher.

关 键 词：红壤 复合胶体 腐殖质 土壤肥力 

分 类 号：S153.622[农业科学—土壤学] S155.25[农业科学—农业基础科学]