The Role of Aquifers in Sustaining the Sponge City Concept in Chinese High-Density Housing

Jin, Mengxiao1,2,3; Lancia, Michele2,3; Tian, Yong2,3; Viaroli, Stefano4; Andrews, Charles5; Liu, Junguo2,3; Zheng, Chunmiao2,3

2022-03-01

10.3390/w14060929

WATER   影响因子和分区

2073-4441

Chinese cities and megacities occupy large areas with high population densities. These urban sectors have extensive impervious surfaces and import large amounts of water from pristine sources, putting pressure on the urban drainage systems during storms. To reduce flood risk and tackle water scarcity, the Chinese government promulgated the Sponge City concept: an ensemble of absorbing features, including permeable pavements and green roofs, to reduce urban runoff and increase water storage. We evaluate the benefits of merging the urban aquifer with conventional Sponge City features by simulating stormwater storage in aquifers with a groundwater model (MODFLOW) and a stormwater management model (SWMM). The urban aquifers of an ideal district, characterized by high-density housing and a flat morphology, collect and dissipate extreme rains (200 mm in 6 h) when the hydraulic conductivity of the subsoil is higher than 1 center dot 10(-5) m/s, roughly corresponding to a medium productive aquifer. Economic and ecological benefits at the catchment scale are also discussed. Suitable shallow aquifers are individuated and discussed throughout China via a hydrogeological and geomorphological approach. The proposed method increases the percentage of water that can be controlled above that obtained through conventional Sponge City features.

groundwater MODFLOW numerical analyses high-density housing SWMM waterlogging

SCI ; EI

英语

通讯

National Natural Science Foundation of China[41861124003] ; National Key R&D Program of China[2018YFE0206200] ; High-level Special Funding of the Southern University of Science and Technology["G02296302","G02296402"]

Environmental Sciences & Ecology ; Water Resources

Environmental Sciences ; Water Resources

WOS:000774619000001

MDPI

20221411880414

Catchments ; Floods ; Groundwater resources ; Housing ; Hydrogeology ; Population statistics ; Runoff ; Sewage ; Soils ; Storm sewers ; Storms

Urban Planning and Development:403.1 ; Flood Control:442.1 ; Precipitation:443.3 ; Surface Water:444.1 ; Groundwater:444.2 ; Sewage:452.1 ; Geology:481.1 ; Soils and Soil Mechanics:483.1

Web of Science

1.Harbin Inst Technol, Sch Environm, Harbin 150001, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China
4.Univ Roma Tre, Dept Sci, I-00146 Rome, Italy
5.SS Papadopulos & Associates Inc, Rockville, MD 20852 USA

Jin, Mengxiao,Lancia, Michele,Tian, Yong,et al. The Role of Aquifers in Sustaining the Sponge City Concept in Chinese High-Density Housing[J]. WATER,2022,14(6).

Jin, Mengxiao.,Lancia, Michele.,Tian, Yong.,Viaroli, Stefano.,Andrews, Charles.,...&Zheng, Chunmiao.(2022).The Role of Aquifers in Sustaining the Sponge City Concept in Chinese High-Density Housing.WATER,14(6).

Jin, Mengxiao,et al."The Role of Aquifers in Sustaining the Sponge City Concept in Chinese High-Density Housing".WATER 14.6(2022).