1 | College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, Inner Mongolia, China |
2 | The Institute of Water Resources for Pastoral Areas, Hohhot 010020, Inner Mongolia, China |
3 | College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China |
4 | Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China |