研究论文
罗金发,夏增禄,李森照.砷在三种紫色土中的化学行为及其与作物效应的关系[J].环境科学学报,1991,11(3):269-275
砷在三种紫色土中的化学行为及其与作物效应的关系
- CHEMICAL BEHAVIOR OF AS IN PURPLE SOILS AND THEIR EFFECTS ON CROP
- 摘要：通过水稻在不同砷浓度处理过的三种紫色土的盆栽试验,研究了砷的吸附特征,形态变化及其与砷的作物效应的关系,揭示了砷在不同土壤中对水稻毒害和在水稻体内累积程度不一样的原因是由于不同土壤的性质影响到砷的吸附和形态变化。其中砷在土壤中的形态变化是最重要的因素之一。在诸形态中,以A-As和Ca-As最为重要。土壤的碳酸盐体系可能是影响三种紫色土砷的化学行为及其生态效应的一个重要因素。
- Abstract：The adsorption, transformation and effect on crop of As in acid, neutral and limy purple soils were studied using pot experiment. The results showed that the accumulation of As in crop depends on the adsorption of As on the soils and the transformation of As in the soils. The most important fractions of soil As are A-As and Ca-As.
- Key words：soil As adsorption purple soil transformation
摘要点击次数： 1640 全文下载次数： 2322
