曲靖烟区烤烟铅、铬、汞含量及其与土壤环境因子的相关性  

Correlation Between Pb,Cr and Hg Contents in Flue-cured Tobacco and Soil Environmental Factors in Qujing Tobacco Growing Areas

作　　者：汤浪涛[1] 周冀衡[1] 张一杨[1] 解燕 黄勇[1] 

机构地区：[1]湖南农业大学烟草科学与健康重点实验室,长沙市芙蓉区人民东路410128 [2]云南省曲靖市烟草公司,云南省曲靖市官坡巷51号655000

出　　处：《烟草科技》2010年第7期53-57,共5页Tobacco Science & Technology

基　　金：云南省烟草公司科技项目(06A05)"曲靖市烟草工商研共建原料与品牌协同发展机制(ESTB)"

摘　　要：在云南省曲靖市各植烟县采集代表性植烟土壤和烟叶样品各96个,测定了样品的铅、铬、汞含量,并分析了烟叶铅、铬、汞含量与土壤环境因子的相关性。结果表明:曲靖烟区烤烟铅、铬、汞平均含量分别为4.15,1.78和0.050mg/kg,均处于较低水平;土壤中铅、铬、汞含量符合国家土壤环境质量2级的样点数分别达到98.96%,100%和94.79%,土壤重金属含量状况良好;植烟土壤pH适宜,有机质含量丰富,氮素、钾素含量较高,磷素含量适中。烟叶中铅、铬、汞的含量与土壤中的含量存在直接关系,与土壤pH负相关,与土壤有机质含量正相关。96 flue-cured tobacco leaf samples and accompanied soil samples were collected from typical tobacco growing counties in Qujing City,Yunnan Province,the contents of Pb,Cr and Hg in tobacco leaf and soil were determined and the correlation between Pb,Cr and Hg contents in flue-cured tobacco and soil environmental factors were discussed. The results showed that： 1） the contents of Pb,Cr and Hg in tobacco leaves were low,their average values were 4. 15,1. 78 and 0. 050 mg/kg,respectively. 2） The levels of heavy metals in tobacco growing soils were favorable,the percentages of soil samples,whose Pb,Cr and Hg contents accorded with the second grade of national soil environment quality,were 98. 96% ,100% and 94. 79% ,respectively. 3） The soil’s pH value was suitable,organic matter content was rich,available N and available K contents were high,available P content was moderate. 4） The Pb,Cr and Hg contents in tobacco leaves directly related with the same in soil,negatively correlated to soil pH,and positively correlated to organic matter content in soil.

关 键 词：曲靖 烤烟 土壤 铅 铬 汞 

分 类 号：S572.061[农业科学—烟草工业]