The 5th International Symposium on IWRM is one of regular symposia organized by the International Commission on Water Resources Systems (ICWRS) of IAHS, focusing on the topic ‘Water Resources Sustainability in a Changing Environment’. The objective is to bring together experts from different disciplines to present research results on the hydrological cycle in a changing environment and discriminating among impacts caused by various factors, to exchange experiences about quantitative methodology for water resources aassessment in a changing environment and eco-hydrological approach to water resources sustainability by balancing water for humans and nature, with a view to ensuring water security in a changing background.

The 3rd International Symposium on Methodology in Hydrology is a series organized regularly by Hohai University, designed to document up-to-date activities in the development of new methodologies in hydrology. The objective of the Symposium is to exchange the knowledge and technology in hydrological sciences and relevant fields, to analyze the limitations and problems of current methods, and to propose innovative strategies, novel techniques and methodologies for hydrology.