**Author details**

Yuguo Liu1 \*, Jiufu Luo2 , Jinxing Zhou<sup>2</sup> and Ming Cui1

1 Institute of Desertification Studies, Chinese Academy of Forestry, Beijing, China

2 Beijing Forestry University, Beijing, China

\*Address all correspondence to: liuyuguo@caf.ac.cn

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
