Long-term remote sensing monitoring reveals the level-by-level transformation pattern among aeolian desertified lands in the semiarid desert region, China

Jian Guo, NIEER/Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Desert and Desertification, Lanzhou, China and Xiang Song, NIEER/Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China