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 full paper submissions to the REES 2021 must be written in English, and will be sent to at least two reviewers and evaluated based on originality, technical or research content, correctness, relevance to conference, contributions, and readability. The full paper submissions will be chosen based on technical merit, interest, applicability, and how well they fit a coherent and balanced technical program. • Conference submission management system : Email - ISREES@163.com , Mr. Jie Wu. zhibinyou@whut.edu.cn , Dr. Zhibin You. • Number of submissions received : 413 • Number of submissions sent for review : 394 • Number of submissions accepted : 289 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100) : 69.98 • Average number of reviews per paper : 2 • Total number of reviewers involved : 126 • Any additional info on review process : To contribute to the orderly running of REES 2021 as well as its quality-driven mission by reviewing the manuscripts objectively and timely. To maintain the confidentiality of any information supplied by the editor or author and not retain or copy the manuscript. Reviewers should not use or disseminate any information, arguments, or interpretations contained in an unpublished manuscript, except with the consent of the author. To support the judgment adequately so that editors and authors may understand the basis of their comments. If reviewers become aware of scientific misconduct, fraud, plagiarism or any other unethical behaviour related to the manuscript, they should bring those concerns to the Conference Editor immediately. • Contact person for queries : Name : Huiquan Liu Affiliation: Asian Union of Information Technology Email : e-mail:liu@auit.org