About the Authors

Xinqi Zheng

zxqsd@126.com

Affiliation School of Land Science and Technology, China University of Geosciences (Beijing), Beijing, China

Tian Xia

Affiliation School of Land Science and Technology, China University of Geosciences (Beijing), Beijing, China

Xin Yang

Affiliation Research Center for Operation and Development of Beijing, Institute of Policy and Management, Chinese Academy of Sciences, Beijing, China

Tao Yuan

Affiliation School of Land Science and Technology, China University of Geosciences (Beijing), Beijing, China

Yecui Hu

Affiliation School of Land Science and Technology, China University of Geosciences (Beijing), Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XQZ TX XY TY YCH. Performed the experiments: XQZ TX XY. Analyzed the data: XQZ TX. Contributed reagents/materials/analysis tools: XQZ TX XY TY YCH. Wrote the paper: XQZ TX XY.