The impact of urbanization on surface runoff and flood prevention strategies: A case study of a traditional village

This study quantitatively analyzes how reconstruction activities caused changes in surface runoff and flooding disasters in Hezhai Village and deeply explored the flooding logic of ponds and ordinary nodes, providing a theoretical basis for the analysis of the causes of village flooding problems. Traditional Chinese villages that rarely experienced flooding disasters in the past have begun to frequently suffer from floods due to unreasonable reconstruction activities such as ground hardening and pond filling caused by urbanization.

The results show that the increase in the impervious ratio in the village has obvious effects on the total runoff, peak runoff, and runoff coefficient. And the reconstruction of ponds and canals has a notable impact on flooding.