摘要
1983～1987年在山东棕壤区采集农化土样352个;剖面土样171个,小麦样品34个,玉米样品37个。测定了铜、锌、铅、镉、镍、铬、砷、汞8种元素;土壤剖面各层加测了钛元素。统计分析结果表明,山东棕壤8种元素背景值均在国内外文献报道的范围之内;小麦、玉米中的各元素含量均未超过食品卫生标准.
Five hundred and ninety four samples including that of agrochemical soils(352),soil profiles (171),wheat seed(34) and maize kernel(37) collected from shandong brown earth areas in 1983 —1984 were determined for Cu,Zn,Pb,Cd,Ni,Cr,As and Hg,with soil profile samples for Ti in addition.Statistical analysis suggested that the background values of the top 8 elements in soils did not exceed the allowed contents as reported at home and abroad and that in wheat and maize grain samples conformed to the food health standard.
出处
《山东农业科学》
1992年第5期10-13,共4页
Shandong Agricultural Sciences
关键词
棕壤
重金属元素
背景值
background values
heavy metals
brown earth
