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Supplemental Information


The raw data

DOI: 10.7287/peerj.preprints.2495v1/supp-1


The analysed code

DOI: 10.7287/peerj.preprints.2495v1/supp-2

Additional Information

Competing Interests

The author declares that they have no competing interests.

Author Contributions

Jian Sun conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Field Study Permissions

The following information was supplied relating to field study approvals (i.e., approving body and any reference numbers):

Field experiments were approved by the Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences.(project number: 41501057).

Data Deposition

The following information was supplied regarding data availability:

The raw data and analysed code has been supplied as supplementary files.


This work was funded by the National Natural Science Foundation of China (No. 41501057), West Light Foundation of The Chinese Academy of Sciences and the Open Fund of the Key Laboratory of Mountain Surface Processes and Eco-regulation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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