About the Authors

Chengchen Pan

Affiliation Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Halin Zhao

zhaohalin9988@hotmail.com

Affiliation Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Xueyong Zhao

Affiliation Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Huibang Han

Affiliation Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Yan Wang

Affiliation Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Jin Li

Affiliation Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CP HZ XZ. Performed the experiments: CP HH. Analyzed the data: YW CP HH. Wrote the paper: CP HZ XZ JL.