EDM–UNet: edge–aware and dynamically receptive Mamba–UNet for segmentation of Elymus nutans from UAV RGB imagery on the Qinghai–Xizang Plateau - Yao Wang; Minhui An; Liwei Wang; Kang Xue; Biyun Lu; Wei Chen; Binbin Fan; Hao Tang; Zizhen Jiang; Chuan Wang; Jin Zhang (Computers and Electronics in Agriculture, 2026)