ORIGINAL RESEARCH
Effects of Low-Impact Development on Urban
Rainfall Runoff under Different Rainfall
Characteristics
1 1 | College of Environment and Resources, Fuzhou University, Fuzhou, Fujian 350116, China |
CORRESPONDING AUTHOR
Submission date: 2017-12-13
Final revision date: 2018-02-15
Acceptance date: 2018-02-15
Online publication date: 2018-10-01
Publication date: 2018-12-20
Pol. J. Environ. Stud. 2019;28(2):771–783
KEYWORDS
TOPICS
ABSTRACT
Low-impact development (LID) is generally regarded as an effective solution for urban stormwater
management. However, the effects of LID on storm flooding on an urban drainage systems scale have
not been fully understood under different rainfall characteristics. In this paper, using a high-density
residential catchment in China as a case study, the PCSWMM model is applied to simulate the control
effects of seven LID land layout scenarios on water quantity and quality of rainfall runoff under different
rainfall return periods, durations, and locations of peak rainfall intensity. The simulations indicated the
following results: (1) All seven LID scenarios are more effective in flood control during smaller rainfall
return periods and longer rainfall duration storms, and the influence of locations of peak rainfall intensity
on the rainfall runoff is not obvious. (2) Permeable pavement is the best choice in single LID measures,
and the combination of permeable pavement, vegetative swale, and a green roof is the best choice among
combined LID layouts. This paper gives insight into the performance of LID designs under different
rainfall characteristics, which is essential for effective sponge city construction.
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