National-scale mapping of plastic-mulched farmlands in China based on deep semantic segmentation and Sentinel-2 imagery - Bowen Niu; Quanlong Feng; Xinmin Zhang; Bingwen Qiu; Yelu Zeng; Shuai Su; Gaoyuan Xu; Jianhua Gong; Xiaolu Yan; Jianxi Huang; Gaofei Yin; Jiantao Liu; et al. (Remote Sensing of Environment, 2026)