干旱区研究2025，Vol.42Issue(7)：1246-1256,11.DOI:10.13866/j.azr.2025.07.08
添加中微量元素对风沙土矿化特征和土壤有机碳组分的影响
Effects of incorporating medium and trace elements on the mineralization characteristics and soil organic carbon components of aeolian sandy soil
摘要
Abstract
To examine the mineralization characteristics and their effect on soil organic carbon components in san-dy loamy soils following the application of organic fertilizers in conjunction with trace elements,indoor culture experiments and field trials were conducted.We assessed the decomposition rate and residue ratio as well as the influence of varying amounts of organic fertilizer on soil organic carbon,active organic carbon,particulate organ-ic carbon,organo-mineral-bound organic carbon,and microbial carbon content,as well as the level of amino sug-ars,N-galactosamine,and galactomannan.Compared with the application of organic fertilizers alone,the addition of trace elements to the indoor culture significantly decreased the amount of mineralized organic carbon in the sandy loam soils.In field trials,this addition further increased active organic carbon(1.79%-1.99%),low-active organic carbon(2.20%-4.91%),organo-mineral-bound organic carbon(3.89%-7.95%),and microbial carbon(1.71%-8.10%)content,while also enhancing the level of amino sugars(3.46%-6.32%),N-galactosamine(1.21%-13.32%),galactomannan(2.41%-6.14%),and microbial residual carbon(2.70%-4.99%).However,the increase was less pronounced for high-active organic carbon(0.71%-1.48%)and particulate organic carbon(4.91%-5.86%)content.The addition of micro and trace elements to organic fertilizers may,to some extent,miti-gate the mineralization process of organic fertilizers in sandy soils,thereby enhancing the level of labile organic carbon,recalcitrant organic carbon,organic carbon bound with minerals,and microbial biomass carbon in the soil,ultimately promoting the turnover and retention of organic carbon in the soil.关键词
有机肥/矿化/有机碳/风沙土/中微量元素/有机碳组分Key words
organic fertilizer/mineralization/organic carbon/aeolian sandy soil/medium and trace elements/organic carbon components引用本文复制引用
刘佳月,寇威,原建强,薛少琪,王旭东..添加中微量元素对风沙土矿化特征和土壤有机碳组分的影响[J].干旱区研究,2025,42(7):1246-1256,11.基金项目
鄂尔多斯市科技合作重大专项项目(2021EEDSCXQDFZ005) （2021EEDSCXQDFZ005）
陕西省重点产业创新链研发计划(2022ZDLNY0205) （2022ZDLNY0205）
陕煤集团神木红柳林矿业公司集团级科研项目(2020SMHKJ-A-J-03-02/02)资助 （2020SMHKJ-A-J-03-02/02）
