Soil and Fertilizer institute;
Shandong Academy of Agricultural Sciences;
Jinan 250100;
P.R.China;
Shandong Academy of Agricultural Sciences;
Jinan 250100;
P.R.China;
Institute of Botany;
Chinese Academy of Sciences;
Beijing 100093;
P.R.China;
土壤重金属含量; 山东省; 中国; 平均浓度; 重金属污染; 菜地; 土壤样品; 质量评价标准;