A multi-level functional framework for quantifying seasonal wetland ecological water requirements using multi-source remote sensing - Shixu Cui; Yuyu Liu; Yanfeng Wu; Shaoming Peng; Xiaokang Zheng; Xuemei Liu; Zehua Li; Anrui Zhao; Haifeng Li; Jilong Li; Ziwei Zhang (Ecohydrology & Hydrobiology, 2026)