Recent research conducted by Ma Lijun from the School of Earth Science and Engineering at Shandong University of Science and Technology sheds light on the pressing issue of waterlogging in Zhengzhou City. With the increasing frequency of heavy rainstorms, understanding the underlying causes of urban flooding has become crucial for effective disaster risk management and urban infrastructure planning.
Utilizing the Soil Conservation Service Curve Number (SCS-CN) model, the study analyzed meteorological data from 2016 to 2020, alongside soil, slope, and land use information from 2020. The findings revealed significant patterns in surface runoff distribution across the city, notably indicating that runoff levels were highest in the northeastern urban areas, where human activities are most concentrated. “Our research shows a clear correlation between urbanization and increased runoff, particularly in areas with gentle slopes,” stated Ma Lijun. This insight is pivotal for urban planners and civil engineers as they design drainage systems and manage stormwater in rapidly developing urban environments.
The research categorized the soils of Zhengzhou into four types, with category D soil exhibiting the highest runoff levels. This classification provides valuable data for the water, sanitation, and drainage sector, as understanding soil types can influence decisions on infrastructure development and maintenance. The study also highlighted the importance of implementing sustainable urban planning practices, such as the integration of sponge bricks and green belts, to mitigate the impacts of runoff. “Incorporating these green technologies can significantly enhance our city’s resilience against flooding,” Ma emphasized.
As urban areas continue to expand, the implications of this research extend beyond Zhengzhou. It serves as a model for other cities facing similar challenges, underscoring the necessity for proactive measures in urban design and drainage management. The findings can guide investments in infrastructure that not only address current waterlogging issues but also anticipate future climate-related challenges.
This research is published in ‘Shuitu baochi tongbao,’ which translates to ‘Water Conservation Bulletin.’ The insights gained from this study could lead to innovative solutions and commercial opportunities within the water management sector, driving advancements in technology and infrastructure that prioritize sustainability and resilience.
For more information about Ma Lijun’s work, you can visit the School of Earth Science and Engineering.
