Temporal and spatial distribution and development of permanent gully in cropland in the rolling hill region (phaeozems area) of northeast China

Yuhao Gao, Yifan Zhu, Junxi Chen, Junxi Chen, Xue Yang, Yi-Ting Huang, Fenghao Song, Yangbo He, Zhengchao Tian, Lirong Lin, Chongfa Cai, Jiazhou Chen, Jiazhou Chen