东北地区黑土与主要粮食作物汞含量及影响因素分析  

Influencing Factors and Hg Concentration in Black Soil and Maize in Northeast China

作　　者：曹会聪[1] 王金达[1] 张学林[1] 

机构地区：[1]中国科学院东北地理与农业生态研究所

出　　处：《农业系统科学与综合研究》2006年第4期292-295,共4页System Sciemces and Comprehensive Studies In Agriculture

基　　金：国家重点墓础研究发展规划项目(2004CB41850407);中国科学院知识创新工程重大项目(C08H10)

摘　　要：调查了吉林省榆树市黑土的汞含量状况,并分析了土壤及粮食作物的汞含量的影响因素。结果表明。研究区内各样点的土壤汞含量基本都高于本地汞含量的平均背景值。但各采样点的土壤汞含量均未超出国家土壤环境质量的标准限值。研究区各样点玉米籽粒均未受到汞污染。土壤汞含量与pH值具有显著负相关关系,玉米籽粒的汞含量受土壤有机质的重要影响。图3,表2,参12。Hg （mercury） concentration of black soil in Yushu city of Jilin Province was investigated, and influencing factors were analyzed. The results showed that Hg concentrations in soil samples were higher than the setting mean of the region, but they were lower than the national standard value. Maize grain sampled was not contaminated by mercury. There was a significantly negative correlation between Hg concentration and pH of soil. Organic matter content of black soil is an important factor influencing Hg content in maize grain.

关 键 词：汞 黑土 玉米 榆树市 

分 类 号：S513[农业科学—作物学]