采用大田调查与数理统计方法,研究了影响水稻吸收重金属镉的相关环境因子。结果表明,稻米Cd与土壤pH、有效Fe、Mn、Zn以及全Ca、Mg、Mn之间呈负相关关系,且与土壤pH达极显著负相关,相关系数为-0.672;与土壤有机质、有效Cd、全Cd之间则呈正相关关系,且与土壤有机质、有效Cd达极显著正相关,相关系数分别为0.579、0.631。 Field investigation and mathematical statistics were used to study the related environmental factors that affect the Cd uptake by rice. The results showed that there was a negative correlation between Cd and soil pH, available Fe, Mn, Zn and total Ca, Mg and Mn, and negatively correlated with soil pH, with a correlation coefficient of -0.672. Soil organic matter Cd and total Cd had a positive correlation, and had significant positive correlation with soil organic matter and available Cd, with correlation coefficients of 0.579 and 0.631 respectively.