Investigating non-point pollution mitigation strategies in response to changing environments: A cross-regional study in China and Germany

Research output: Contribution to journalResearch articleContributedpeer-review


Climate change and urbanization have altered regional hydro-environments. Yet, the impact of future changes on the pollution risk and associated mitigation strategies requires further exploration. This study proposed a hydraulic and water-quality modeling framework, to investigate the spatiotemporal characteristics of pollution risk mitigation by low impact development (LID) strategies under future Representative Concentration Pathways (RCP) and Shared Socioeconomic Pathways (SSP) scenarios. Results demonstrated that the LID strategies exhibited an effective performance of pollutant removal in the current hydro-environment, with the removal rates ranging from 33% to 56%. In future climate and urbanization scenarios, the LID performance declined and turned to be uncertain as the greenhouse gas (GHG) emissions increased, with the removal rates ranging from 12% to 59%. Scenario analysis suggested that the LID performance was enhanced by a maximum of 73% through the diversified implementation of LID practices, and the performance uncertainty was reduced by a maximum of 67% through the increased LID deployment. In addition, comparative analysis revealed that the LID strategies in a well-developed region (Dresden, Germany) were more resilient in response to changing environments, while the LID strategy in a high-growth region (Chaohu, China) exhibited a better pollutant removal performance under low-GHG scenarios. The methods and findings in this study could provide additional insights into sustainable water quality management in response to climate change and urbanization.


Original languageEnglish
Article number120432
JournalWater research
Publication statusPublished - Oct 2023

External IDs

Scopus 85169897295
WOS 001056983100001
Mendeley 8cbdc4ee-4e14-389d-9f6f-41fbb02aaf22


Research priority areas of TU Dresden

Sustainable Development Goals


  • Climate change, Cross-regional study, Low impact development, Non-point pollution, Shared socioeconomic pathways, Urbanization