The Acacia auriculiformis is a tree common in tropical Asian countries, capable of growing in many different soil types, so it could be used for biomonitoring for high natural radionuclide areas in tropical and subtropical climates. The transfer factor (TF) of radionuclides from soil to A. auriculiformis in eight uranium and rare earth element (REE) mining areas of North Vietnam was investigated. The activity concentrations ²²⁶Ra, ²³⁸U, ¹³⁷Cs, ²²⁸Ra, and ⁴⁰K in both soil and A. auriculiformis showed considerable variation. The TFs of these radionuclides also varied in a wide range. In most of the eight areas, the highest TF was observed for ¹³⁷Cs and ²²⁸Ra. While the TFs for ²²⁶Ra and ²³⁸U were smallest. In addition, the TFs for radionuclides near REE mines were similar to those observed near uranium mines. The TFs for A. auriculiformis were within the ranges of TF reported for other plants, except for ¹³⁷Cs.

在大叶相思是一种常见的树在热带亚洲国家，能够在许多不同土壤类型越来越多，所以它可用于生物监测在热带和亚热带气候的高天然放射性核素的地区。在越南北部的八个铀矿和稀土元素（REE）矿区，研究了放射性核素从土壤到金曲霉的转移因子（TF）。土壤和A. auriculiformis的活性浓度分别为²²⁶ Ra，²³⁸ U，¹³⁷ Cs，²²⁸ Ra和⁴⁰ K表现出很大的差异。这些放射性核素的TF也有很大的变化。在八个区域中的大多数区域，在¹³⁷ Cs和²²⁸ Ra下观察到最高的TF 。而²²⁶ Ra和²³⁸ U的TF最小。此外，稀土矿附近的放射性核素的TFs与铀矿附近的TFs相似。对于所述TFS A.大叶是内TF的范围来记录用于其它植物，除了^137个Cs中。