摘要
通过研究不同体积比例分配的东湖底泥和黄棕壤混合物对小白菜生长的影响,初步探讨了在营养元素和重金属方面利用东湖底泥种植小白菜的可行性。结果表明,东湖底泥营养元素远超过背景值,但是重金属污染并不严重。小白菜在基质中生长状况良好。底泥中Cd、Zn、Cu含量虽超过国家土壤环境二级标准,但是所培养的小白菜体内Cd、Cu、Zn含量基本在蔬菜重金属标准范围内。Zn值接近蔬菜重金属标准,成为利用东湖底泥种植小白菜的限制性因素。
Through studying the effects of the mixture of the sediment of Donghu Lake and yellow brown soil at different proportion on the growth of pakchoi cabbage, the feasibility of planting pakchoi cabbage with the sediment of Donghu Lake from the aspects of nutritional elements and heavy metals was preliminarily discussed. The results showed that the ratio of the nutritional elements of the sediment were more higher than that of the soil background level, and the heavy metal pollution of the sediment was not critical. Pakchoi cabbage grew well in the mixed soils. The content of the heavy metals Cd, Zn, Cu in the planted pakchoi cabbages were under Chinese II Vegetable Criterion although the these metals contents went beyond Chinese National II Soil Environment Criterion. The content of Zn was very near to the vegetable criterion, Zn will be the limited factor for the fertilizing utility of the sediment.
出处
《安徽农业科学》
CAS
北大核心
2009年第31期15202-15204,共3页
Journal of Anhui Agricultural Sciences
基金
中国科学院知识创新工程重要方向项目(kzcx2-yw-141)
关键词
东湖
底泥
重金属
小白菜
Donghu Lake
Sediment
Heavy metal
Pakchoi cabbage
