The series of IUFRO International Conferences on Forests and Water in a Changing Environment aims to provide a forum for experts in forest hydrology, watershed ecosystem management, ecohydrology, climate, and environmental change around the world. It represents a global effort to understand the forest-water nexus in our changing environment and to support the United Nations 2030 Agenda for Sustainable Development Goals and the Paris Agreement on Climate Change. From 20-23 October 2025, the 6th IUFRO International Conference on Forests and Water in a Changing Environment (FWCE) was successfully held at Beijing Forestry University. This conference was organized by the IUFRO Task Force Forest-Water-Livelihood-Governance Nexus and IUFRO Working Party 8.01.04 Hydrological Processes and Water Quality and co-hosted by Beijing Forestry University and the Chinese Academy of Forestry. It attracted approximately 130 scientists, policymakers, and practitioners from 22 countries.