吉林农业大学学报2009，Vol.31Issue(6)：729-732,4.
玉米秸秆分解期间土壤腐殖质数量动态变化的研究
Dynamic Change in Amounts of Soil Humic and Fulvic Acid during Corn Stalk Decomposition
摘要
Abstract
In a laboratory incubation experiment, timing change in amount of humic acid (HA) and ful-vic acid (FA) was studied in dark-brown soil and paddy soil during corn stalk decomposition. The results showed that the amount of HA increased before the 15th(or 30th) day, then decreased; that of FA decreased after the 15th day during corn stalk decomposition. The formed rate of FA was faster than that of HA in the initial stage of incubation; with prolonged incubation, FA transformed into HA; the proportion of HA in extractable humus eventually increased during corn stalk decomposition.关键词
暗棕壤/水稻土/玉米秸秆/腐殖质/胡敏酸/富里酸Key words
dark-brown soil/ paddy soil/ corn stalk/ humus/ humic acid/ fulvic acid分类
农业科技引用本文复制引用
李翠兰,张晋京,窦森,任志成..玉米秸秆分解期间土壤腐殖质数量动态变化的研究[J].吉林农业大学学报,2009,31(6):729-732,4.基金项目
国家自然科学基金项目(49971052),吉林省杰出青年基金项目(1999248217),国家教委优秀年轻教师基金项目(1995211221) （49971052）
