摘要
以辽宁省昌图县为研究区域,采集26个采样点的土壤以及玉米样品,分析土壤镉总量与有效态镉之间的相关性,以及玉米可食部位中镉含量与土壤镉总量、有效态镉之间的相关性,发现作物可食部位中镉含量与土壤有效态镉之间有明显的相关性。并通过盆栽试验,确定土壤有效态镉临界值,并根据此临界值评价研究区域的土壤环境质量状况。
26 soil samples and Zea Mays samples were collected from the investigation area of Changtu County of Tieling City of Liaoning Province. The correlation between content of total Cd to available Cd in soil, as well as correlation between Cd content in corn to total Cd and available Cd in soil was analyzed. There was obvious relativity between Cd content in corn to available Cd in soil, and through potted plant examination, the critical content of available Cd in soil was confirmed. Based on the critical content of Cd, the quality of soil environment of the investigation area was evaluated.
出处
《粮食加工》
2008年第6期59-62,86,共5页
Grain Processing
基金
"绿色农业产地环境评估与预警技术研究"2007-10
关键词
辽宁
棕壤
玉米
有效态
镉
临界值
Liaoning, brown soil, maize, availability, Cd, critical point
