Multi-Scale Feature Analysis Method for Soil Heavy Metal Based on Two-Dimensional Empirical Mode Decomposition: An Example of Arsenic. - Yang, Maowei; Ge, Lin; Yao, Chaofeng; Zhu, Jinjie; Wang, Wenqiang; Ma, Qingwei; Guo, Chang-En; Sun, Qiangqiang; Dong, Shiwei (Applied Sciences (2076-3417), 2025)