Preface

Abstract

The Fourth International Workshop on Environment and Geoscience (IWEG 2021) was held successfully on 17-19 July 2021 in Hangzhou, China. This year’s conference was held as a hybrid conference to avoid international travelling during the COVID-19 situation, delegates could attend the conference in person or online via VooV Meeting.Conference program was divided into 3 sessions: keynote speeches, oral presentations and poster presentations. We greatly appreciate Prof. Youmin Chen from Henan University, who presided over the conference, and all participants for attending and sharing!We are honored to invite 5 experts to give the impressive keynote speeches: Prof. Xiaxin Tao from Harbin Institute of Technology; Prof. Bin Zou from Central South University; Prof. Long Ding from University of Science and Technology of China; Prof. Youmin Chen from Henan University; Prof. Chien-Yuan Chen from National Chiayi University.List of Technical Program Committee, Conference Overview, Conference Schedule, Keynote Speeches, Oral Presentations, Poster Presentations are available in this pdf.