Developing a sub-meter phenological spectral feature for mapping poplars and willows in urban environment

Xiangcai Li, Jinyan Tian, Xiaojuan Li, Le Wang, Huili Gong, Chen Shi, Sheng Nie, Lin Zhu, Beibei Chen, Yun Pan, Jijun He, Rongguang Ni, Chunyuan Diao