About the Authors

Lin Zhu

Affiliation State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Life Sciences of Beijing Normal University, Beijing, China

Anru Lou

louanru@bnu.edu.cn

Affiliation State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Life Sciences of Beijing Normal University, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LZ AL. Performed the experiments: LZ. Analyzed the data: LZ AL. Contributed reagents/materials/analysis tools: AL. Wrote the paper: LZ AL.