生态学杂志2025，Vol.44Issue(4)：1144-1151,8.DOI:10.13292/j.1000-4890.202504.005
秸秆还田方式对盐碱旱田土壤团聚体有机碳组分的影响
Effects of straw return methods on organic carbon fractions in soil aggregates of saline-alkaline dryland
摘要
Abstract
With the vigorous promotion of straw returning technology,different straw returning methods have been widely applied in Northeast China.We examined the effects of straw returning on organic carbon in a saline-alkaline tillage soil,aiming to provide a scientific basis for the rational utilization of straw.We set up a field experiment with four treatments,including no straw application(CK),no-tillage+straw coverage(NTS),rotary tillage+straw(RTS),and deep tilling+straw(PTS).The results showed that straw returning significantly increased the con-tents of particulate organic matter(Fm-POM)in free microaggregates,particulate organic matter(mM-POM)in occluded microaggregates and organic carbon content of silt+clay(mM-SC)components in closed microaggregates in 0-20 cm soil layer.In 0-20 cm soil layer,RTS treatment had higher contents of coarse particulate organic mat-ter(MA(c)POM),closed microaggregates(mM),mM-POM and mM-SC components,which improved the stabi-lity of organic carbon in topsoil.In the 20-40 cm soil layer,PTS treatment increased organic carbon contents in mM-POM and mM-SC fractions.Straw returning can be used as an effective measure to improve organic matter in saline-alkali soil.关键词
团聚体/有机碳组分/秸秆还田方式/盐碱旱地Key words
aggregate/organic carbon fraction/straw return method/saline-alkaline dryland引用本文复制引用
孙云云,窦金刚,刘方明,高玉山,侯中华,范围,刘慧涛..秸秆还田方式对盐碱旱田土壤团聚体有机碳组分的影响[J].生态学杂志,2025,44(4):1144-1151,8.基金项目
吉林省农业科学院创新工程项目(CXGC2021TD004)、吉林省科技厅重点研发项目(20230203158SF)、国家重点研发计划项目(2021YFD1500105-3)资助. （CXGC2021TD004）
