Preface: The 5th International Conference on Environmental Resources Management (ICERM) 2023

Water resources have become crucial for livelihood in the previous decade 1,2. Population pressure, climate change, hydrological disasters, and inadequate implementation of integrated water resource management have all been topics of concern among water resource professionals 3,4,5. Meanwhile, poor hydrological data and a lack of government policy focus (especially in developing countries) on hydrological data collecting are challenges that make it difficult to implement water resource management and integration to secure human livelihood 6,7. The Faculty of Geography, Universitas Gadjah Mada, particularly the Department of Environmental Geography, has a long track record and experience in addressing water resource concerns and their relationship to other elements of livelihood. In this case, in an era of rapid development, particularly in developing countries, and increasing awareness of global climate change, the Department is looking to highlight the most recent issues and discuss efforts related to sustainable water resource management by hosting the 5 th International Conference on Environmental Resources Management (ICERM). The conference, with the theme “Water resources management for sustainable livelihood,” was held on September 26, 2023, in Jogjakarta, Indonesia. 57 presenters from 5 nations attended the conference, which was preceded by 12 keynote and invited speakers from 6 countries. The 5 th ICERM’s sub-topics are as follows: • Implementation of integrated water resources management; • Livelihood and water resources management in urban areas; • Water equity for sustainable development; • Marine sciences and coastal management; • Ecosystem and tropical lake management; • New urban agenda and sustainable urban development; • Natural resources and disaster management; • Environmental sciences and climate change; and • Human geography and spatial planning Finally, we would like to extend our appreciation and gratitude to all parties that assisted and cooperated towards making this conference a success. This conference is supported by Faculty of Geography UGM and the Publishing Agency of UGM, and in cooperation with Flinders University, Universiti Teknologi Malaysia, Seoul National University, Kobe University, National Taiwan Normal University, CSIRO, SEALNet-Malaysia University of Science, Indonesian Geographer Society, Indonesian Hydrological Society, Indonesian Limnological Society, Indonesian Groundwater Experts Association, and Chinese Academy of Science.