CAJ | 학술논문

采用平均离子强度下30年雨量的模拟酸雨淋滤珠江三角洲潮土,电感耦合等离子体质谱法测定重金属元素,研究潮土0～90 cm处各节土壤柱中重金属镉、钴、铜、锌、铅、砷、钛、钒、铬、锰等元素的释放情况.研究表明,在高强度模拟酸雨淋滤下,潮土中重金属元素的释放情况存在较大差异.长期的酸雨淋滤,土壤中的镉、钴、铜、锌和铅在不同深度均有不同程度的淋失;砷、钛、钒、铬、锰等元素不会造成大量的淋失.利用这种差异可以评估重金属元素对环境的潜在影响,为农田生态系统的预警预测提供依据.
채용평균리자강도하30년우량적모의산우림려주강삼각주조토,전감우합등리자체질보법측정중금속원소,연구조토0～90 cm처각절토양주중중금속력、고、동、자、연、신、태、범、락、맹등원소적석방정황.연구표명,재고강도모의산우림려하,조토중중금속원소적석방정황존재교대차이.장기적산우림려,토양중적력、고、동、자화연재불동심도균유불동정도적림실;신、태、범、락、맹등원소불회조성대량적림실.이용저충차이가이평고중금속원소대배경적잠재영향,위농전생태계통적예경예측제공의거.
This article studied the influence of high intensity simulated acid rain (average of 30 years rainfall in this area) on releasing of some heavy metal elements such as Cd, Co, Cu, Zn, Pb, As, Ti, V, Cr and Mn from moisture soil in Pearl River Delta. Inductively coupled plasma-mass spectrometry (ICP-MS) was used for the determination of heavy metal elements leached from the moisture soil by high intensity simulated acid rain. The study showed that the releasing behaviours of these heavy metal elements in moisture soil were different. Under the long-term acid rain leaching, Cd, Co, Cu, Zn and Pb were washed away in varying degrees at different soil depths, but without much lose of As, Ti, V, Cr and Mn. These differences can help us to evaluate the potential impact of the heavy metal elements on the environment and provide a basis of early warning and prediction for agro-ecosystem.