Remote sensing phytochemistry has been proven by many studies to be an effective method for the detection of hidden minerals in vegetation-covered areas. In this study, we determined whether Seriphidium terrae-albae, a small shrub distributed widely in arid deserts, could be an effective sampling medium for application in remote sensing plant geochemistry. The absorption and aggregation characteristics and spectral changes in Seriphidium terrae-albae transplants at varying soil concentrations of copper (Cu), nickel (Ni), gold (Au), and zinc (Zn) were studied via simulation testing using artificial transplant cultivation. The results showed the following. (1) There exists a good logarithmic relationship between Cu and Zn contents in Seriphidium terrae-albae and the corresponding contents in soil, with coefficients of determination (R²) reaching as high as 0.936 for Cu and 0.9568 for Zn, while a linear relationship is observed between Au and Ni contents in the plant and the corresponding contents in soil, with R² values as high as 0.9524 for Au and 0.9177 for Ni. (2) The accumulation of Cu and Ni in Seriphidium terrae-albae transplants grown in soil with high Cu and Ni contents is higher than in controls grown in normal soil, demonstrating the ability to clearly indicate abnormal Cu and Ni contents. (3) The ratio vegetation index based on the reflectance at 747 and 742 nm can be adopted to estimate Cu content in Seriphidium terrae-albae. These results suggest that Seriphidium terrae-albae exhibits great potential as an effective geochemical remote sensing plant sampling medium for concealed Cu deposits. This study provides proof of concept for the hyperspectral remote sensing technique in the exploration of hidden minerals in arid deserts, a quick measurement means of Cu content anomalies in the Seriphidium terrae-albae plant and a reference for the identification of prospective metallogenic areas, which could not only expand the existing prospecting space but could also improve the prospecting efficiency in arid deserts.

许多研究已证明遥感植物化学是检测植被覆盖地区隐藏矿物质的有效方法。在这项研究中，我们确定了分布广泛于干旱沙漠中的小灌木灌木绢毛蕨（Seriphidium terrae-albae）是否可能是用于遥感植物地球化学的有效采样介质。通过使用人工移植栽培的模拟试验，研究了土壤铜，镍（Ni），金（Au）和锌（Zn）在不同土壤浓度下，Seriphidium terra-albae移植的吸收和聚集特性以及光谱变化。结果显示如下。（1）绢云母（Seriphidium terrae-albae）中铜和锌的含量之间具有良好的对数关系和土壤中的相应的内容，以确定（系数- [R ²）达到高达0.936对Cu和0.9568为锌，而在植物Au和Ni的含量之间观察到的线性关系，并在土壤中的相应的内容，以ř ²的Au值为0.9524，Ni值为0.9177。（2）在高Cu和Ni含量的土壤中生长的Seriphidium terra-albae移植物中Cu和Ni的积累高于在正常土壤中生长的对照的Cu，表明了清楚地表明异常Cu和Ni含量的能力。（3）可以采用基于747和742 nm反射率的比率植被指数来估算绿绢云母中的Cu含量。这些结果表明，Seriphidium terrae-albae作为隐蔽的Cu沉积物的有效地球化学遥感植物采样介质具有巨大的潜力。这项研究为干旱沙漠中隐藏矿藏的勘探提供了高光谱遥感技术的概念证明，为Seriphidium terra-albae植物中的Cu含量异常提供了一种快速的测量手段，并为识别潜在的成矿区提供了参考。不仅扩大了现有的勘探空间，而且可以提高干旱沙漠地区的勘探效率。