Authors
Qiuhong Sun
Postdoctoral research station of Geography, Hebei Normal University,, Shijiazhuang, China
Hebei University of Science and Technology,, Shijiazhuang, China
Junhai Zhang
Postdoctoral research station of Geography, Hebei Normal University,, Shijiazhuang, China
Xinhang Xu
State Grid Hebei Electric Power Research Institute,, Shijiazhuang, China