Peer review declaration

All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. Type of peer review: Double-blind . All papers are reviewed using a double-blind review process: authors declare their names and affiliations in the manuscript for the reviewers to see, but reviewers do not know each other's identities, nor do the authors receive information about who has reviewed their manuscript. Conference submission management system: All the submissions are managed by email and the Conference Management Toolkit. All the submissions viaemail: ICAPEE@163.com . Zhihui Tan ( zhibinyou@whut.edu.cn ) was in charge of this work Number of submissions received: APEE 2020 received 453 manuscripts Number of submissions sent for review: About 420 submissions were sent for review. Number of submissions accepted: 126 submissions had been accepted by our reviewers. Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 27.8% Average number of reviews per paper: 2.02 Total number of reviewers involved: 71 Any additional info on review process: By submitting a paper to APEE 2020, the authors agree to the review process and understand that papers undergo a peer-review process. Manuscripts will be reviewed by appropriately qualified experts in the field selected by the Conference Committee, who will give detailed comments and-if the submission gets accepted-the authors submit a revised version that takes into account this feedback. Contact person for queries: (please include name, affiliation and email address) Zhibin You, Wuhan University of Technology, zhibinyou@whut.edu.cn