title: Major factors influencing cadmium uptake from the soil into wheat plants.
abstract: At present, soil quality standards for agriculture have not been improved for many years and are applied uniformly for a diverse variety of crops and different soil types, not fully considering the effects of soil properties on cadmium (Cd) uptake via soil-plant transfer. In this study, the characteristics of Cd transfer from soil to eight wheat varieties were investigated, and the results showed that Xiaoyan 22 was moderately sensitive to Cd. Upon growing Xiaoyan 22 in 18 different Chinese soils, we studied the major controlling factors of Cd transfer and constructed a bioaccumulation prediction model from the soil properties. The results showed that pH was the most important factor contributing to Cd uptake. After calibration for the eight wheat varieties, a continuous soil threshold model for wheat was derived for the species sensitive distribution based on food safety standards.
authors.affiliation: College of Resources and Environment, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China. Electronic address: liaixiangmama@outlook.com.
authors.forename: Ke
authors.initials: K
authors.lastname: Liu
authors.affiliation: College of Resources and Environment, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China. Electronic address: ljlll@nwsuaf.edu.cn.
authors.forename: Jialong
authors.initials: J
authors.lastname: Lv
authors.affiliation: College of Resources and Environment, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China. Electronic address: wenxianghe@nwsuaf.edu.cn.
authors.forename: Wenxiang
authors.initials: W
authors.lastname: He
authors.affiliation: College of Resources and Environment, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China. Electronic address: zhanghong628@nwsuaf.edu.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
authors.affiliation: College of Resources and Environment, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China. Electronic address: yingfeicao@126.com.
authors.forename: Yingfei
authors.initials: Y
authors.lastname: Cao
authors.affiliation: College of Resources and Environment, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China. Electronic address: liukeaidami@hotmail.com.
authors.forename: Yunchao
authors.initials: Y
authors.lastname: Dai
mesh_terms: D000383:Agriculture; D002104:Cadmium / Q000378:metabolism*; D018556:Crops, Agricultural / Q000378:metabolism; D059022:Food Safety; D008962:Models, Theoretical; D012987:Soil / Q000737:chemistry; D014908:Triticum / Q000378:metabolism*
chemical_list: D012987:Soil; D002104:Cadmium
keywords: Bioaccumulation factor; Cadmium; Soil thresholds; Species sensitive distribution; Wheat