木醋液对镉污染农田禾本科作物富集转运Cd效应影响  

Effect of Wood Vinegar on Cadmium Enrichment and Transport of Gramineous Crops in Cd-contaminated Farmland

作　　者：多晶 叶佳润 杨东霞 刘宇昊 李一 刘世亮[1] 介晓磊[1] 刘芳[1] 赵颖[1] DUO Jing;YE Jia-run;YANG Dong-xia;LIU Yu-hao;LI Yi;LIU Shi-liang;JIE Xiao-lei;LIU Fang;ZHAO Ying(Key Laboratory of Cultivated Land Quality Conservation in the Huanghuaihai Plain,Ministry of Agriculture and Rural Affairs,College of Resources and Environment,Henan Agricultural University,Zhengzhou 450002,China;Luoyang Market Supervision Bureau Product Quality Inspection and Testing Center Chemical Room,Luoyang 471032,China)

机构地区：[1]河南农业大学资源与环境学院,农业农村部黄淮海平原耕地质量保育重点实验室,郑州450002 [2]洛阳市场监管局产品质量检验检测中心化工室,洛阳471032

出　　处：《环境科学》2025年第4期2571-2579,共9页Environmental Science

基　　金：河南省农业农村厅重点项目(30803206)。

摘　　要：为探究木醋液对镉(Cd)污染农田禾本科作物富集转运的影响,采用田间小区试验,设置9个处理,测定植株与根际土壤Cd含量,开展木醋液对禾本科作物(小麦、大麦和燕麦)生长和作物对Cd富集转运影响的研究.结果表明,施加木醋液可提高各作物生物量(小麦、大麦和燕麦分别为0~6.73%、14.45%~15.91%和19.48%~21.97%,P<0.05)、秸秆Cd含量(小麦、大麦和燕麦分别为12.32%~45.74%、7.02%~42.11%和19.90%~25.00%,P<0.05).施加稀释400倍木醋液(T1)处理,小麦和大麦根部Cd含量分别下降7.77%和29.26%,燕麦提高28.74%;小麦和大麦TF_(根-秸秆)分别提高58.30%和100.87%,TF_(秸秆-籽粒)显著降低30.40%和32.20%,燕麦TF_(根-秸秆)降低3.14%,TF_(秸秆-籽粒)降低21.02%.收获期大麦和燕麦种植前后Cd含量差值均显著高于小麦各处理,其中大麦D-T1和燕麦E-T2处理较种植前下降18.53%和19.59%.综合分析小麦、大麦和燕麦各部位Cd积累量、转运系数和Cd含量指标,大麦籽粒Cd含量风险系数最低,适合中轻度Cd污染农田种植,并可通过秸秆离田进行边生产边修复,实现中轻度Cd污染农田的安全生产.To explore the effect of wood vinegar on the enrichment and transport of heavy metal Cadmium(Cd)in gramineous crops(wheat,barley,and oat)in Cd-contaminated farmland,a field plot experiment was conducted involving nine treatments.The effects of wood vinegar on the growth of gramineous crops(wheat,barley,and oat)and the enrichment and transport of Cd in crops were studied by measuring the Cd content in plants and rhizosphere of the soil.The results showed that wood vinegar increased the biomass of crops(wheat,barley,and oats biomasses were 0-6.73%,14.45%-15.91%,and 19.48%-21.97%,respectively,P<0.05)and the Cd content of straw(those of wheat,barley,and oat were 12.32%-45.74%,7.02%-42.11%,and 19.90%-25.00%,respectively,P<0.05).On applying wood vinegar diluted 400 times,the Cd content in roots of wheat and barley decreased by 7.77%and 29.26%,respectively,and that of oats increased by 28.74%.The translocation factor(TF)root-straw of wheat and barley increased by 58.30%and 100.87%,whereas the TF straw-grain decreased significantly by 30.40%and 32.20%,respectively.The TF root-straw of oat decreased by 3.14%,whereas the TF straw-grain decreased by 21.02%.The difference in Cd content before and after planting of barley and oats was significantly higher than that of wheat at the harvest stage.Among them,the Cd content of barley D-T1 and oat E-T2 decreased by 18.53%and 19.59%compared with that before planting.Based on the comprehensive analysis of Cd accumulation,transport coefficient,and Cd content in different parts of wheat,barley,and oat,the risk coefficient of Cd content in barley grain was the lowest,which was suitable for planting in moderate and mild Cd-contaminated farmland and could be remediated during production by leaving the straw in the field to realize the safe cultivation of moderately and mildly Cdcontaminated farmland.

关 键 词：土壤重金属 镉(Cd)污染 禾本科作物 富集转运 木醋液 

分 类 号：X171.5[环境科学与工程—环境科学]