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作 者:秦丽萍 QIN Liping(Xishuangbanna Vocational and Technical College,Jinghong,Yunnan 666100,China)
出 处:《热带农业科学》2022年第10期57-62,共6页Chinese Journal of Tropical Agriculture
基 金:云南省教育厅科学研究基金“西双版纳州蔬菜地土壤有机氯农药残留研究”(No.2017zzx098)。
摘 要:为了探究有机氯农药(OCPs)在蔬菜地土壤中的残留现状,于2022年1月初采集了西双版纳3个县市9个乡镇典型蔬菜生产基地表层土壤,利用气相色谱仪对21种OCPs进行定量检测.结果表明,蔬菜地土壤中OCPs均未检出,检出率0.分析其原因有,一是云南省及本地区历史上有机氯农药使用水平低;二是受该地区的地理维度、气候及耕作栽培方式的影响;三是监测采样年份晚.与国内其他地区蔬菜地土壤OCPs残留及GB 15618-2018《土壤环境质量农用地土壤污染风险管控标准》中规定DDTs和HCHs 100μg/kg的限值比较,西双版纳蔬菜地土壤中有机氯农药残留水平极低,生态风险小,适宜大力推进农业绿色发展.In order to explore the residue status of organochlorine pesticides (OCPs) in vegetable soil,the topsoil of 9 typical vegetable production bases in 3 counties and cities of Xishuangbanna was collected in early January 2022,and 21 kinds of OCPs were quantitatively detected by gas chromatograph.The results showed that OCPs were not detected in vegetable soil,and the detection rate was 0%.The reasons were as follows:firstly,the use level of OCPs in Yunnan and this region was low in history;Secondly,it was affected by geographical dimension,climate and cultivation methods of the region;Thirdly,the monitoring and sampling year was late.Compared with the residue of OCPs in vegetable soil in other regions of China and the limit of DDTs and HCHs of 100μg·kg^(-1) specified in GB 15618-2018“soil environmental quality standard for soil pollution risk control of agricultural land”,the residue level of OCPs in vegetable soil in Xishuangbanna was very low and the ecological risk was small.Xishuangbanna area is suitable for develop the green agriculture.
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