Modelling the Effects of Green Infrastructures on Water Quantity Under Different Rainfall Characteristics

Qian Yu, Qian Yu, Xiaohe Du, Xiaohe Du, Na Li, Na Li, Yuting Meng, Jing Wang, Jing Wang

2022

Abstract

Under the dual impacts of climate change and rapid urbanization, urban pluvial flooding disasters in China are increasingly serious, which cause huge economic losses and even serious casualties. Green infrastructure (GI), a kind of resilient measure, can control rainfall runoffs and improve water quality. Modelling the effects of GIs on controlling stormwater runoff under different rainfall characteristics plays an important role in planning and designing GIs that are adapted to both local conditions and future climate change. In this paper, we set nine rainfall scenarios with varying rainfall characteristics (intensity-duration-frequency, IDF) and then study the effects of the combined GIs on water quantity in the Jinan pilot area. The results show that GIs have good control effects on the inundation areas and runoff coefficients under rainfalls with small return periods. With the increases in return periods and rainfall intensities, the control effects of GIs on inundation areas decrease significantly. However, with the increases in rainfall intensities, the control effects on runoff coefficients are not that obvious. In addition, rainfall duration variations have little impact on reducing rates of controlling inundation areas and runoff coefficients.

Paper Citation

in Harvard Style

Yu Q., Du X., Li N., Meng Y. and Wang J. (2022). Modelling the Effects of Green Infrastructures on Water Quantity Under Different Rainfall Characteristics. In Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE; ISBN 978-989-758-639-2, SciTePress, pages 222-228. DOI: 10.5220/0011999400003536

in Bibtex Style

@conference{iswee22,
author={Qian Yu and Xiaohe Du and Na Li and Yuting Meng and Jing Wang},
title={Modelling the Effects of Green Infrastructures on Water Quantity Under Different Rainfall Characteristics},
booktitle={Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE},
year={2022},
pages={222-228},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011999400003536},
isbn={978-989-758-639-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE
TI - Modelling the Effects of Green Infrastructures on Water Quantity Under Different Rainfall Characteristics
SN - 978-989-758-639-2
AU - Yu Q.
AU - Du X.
AU - Li N.
AU - Meng Y.
AU - Wang J.
PY - 2022
SP - 222
EP - 228
DO - 10.5220/0011999400003536
PB - SciTePress