Assessment of the Declining Degree of Farmland Shelterbelts in a Desert Oasis Based on LiDAR and Hyperspectral Imagery oleh Chengwei Luo, Yuli Yang, Zhiming Xin, Junran Li, Xiaoxiao Jia, Guangpeng Fan, Junying Zhu, Jindui Song, Zhou Wang, Huijie Xiao