Spatial simulation of the ecological processes of stormwater for sponge cities

Hou, Jingwei; Mao, Hongxin; Li, Jianping; Sun, Shiqin

doi:10.1016/j.jenvman.2018.11.111

Cited by 50 publications

(22 citation statements)

References 35 publications

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“…Water engineers and managers increasingly run two-dimensional hydrologic and hydraulic models (e.g., MIKE-URBAN, MIKE-SWMM, STORM, SWMM, UCURM, ILLUDAS, TRRL, SUSTAIN, MOUSE, and InfoWorks) to simulate complex urban water processes and map potential inundation extents and flood risks [77]. Nonetheless, commercial modelling software needs to be updated and upgraded to simulate the changing urban environments in Chinese cities (e.g., the high intensity of construction and impacts of increasing populations) [78].…”

Section: Technology and Modelling Capabilitiesmentioning

confidence: 99%

Addressing Challenges of Urban Water Management in Chinese Sponge Cities via Nature-Based Solutions

Chan

Thorne

et al. 2020

Water

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Urban flooding has become a serious issue in most Chinese cities due to rapid urbanization and extreme weather, as evidenced by severe events in Beijing (2012), Ningbo (2013), Guangzhou (2015), Wuhan (2016), Shenzhen (2019), and Chongqing (2020). The Chinese “Sponge City Program” (SCP), initiated in 2013 and adopted by 30 pilot cities, is developing solutions to manage urban flood risk, purify stormwater, and provide water storage opportunities for future usage. Emerging challenges to the continued implementation of Sponge Cities include (1) uncertainty regarding future hydrological conditions related to climate change projections, which complicates urban planning and designing infrastructure that will be fit for purpose over its intended operating life, and (2) the competing priorities of stakeholders and their reluctance to make trade-offs, which obstruct future investment in the SCP. Nature-Based Solutions (NBS) is an umbrella concept that emerged from Europe, which encourages the holistic idea of considering wider options that combine “Blue–Green” practices with traditional engineering to deliver “integrated systems of Blue–Green–Grey infrastructure”. NBS includes interventions making use of natural processes and ecosystem services for functional purposes, and this could help to improve current pilot SCP practices. This manuscript reviews the development of the SCP, focusing on its construction and design aspects, and discusses how approaches using NBS could be included in the SCP to tackle not only urban water challenges but also a wide range of social and environmental challenges, including human health, pollution (via nutrients, metals, sediments, plastics, etc.), flood risk, and biodiversity.

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Section: Technology and Modelling Capabilitiesmentioning

confidence: 99%

Addressing Challenges of Urban Water Management in Chinese Sponge Cities via Nature-Based Solutions

Chan

Thorne

et al. 2020

Water

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“…However, although such models play an important role in urban water management, they still face many challenges of application due to the complexity and diversity of urban water systems (Chen et al 2018;Hou et al 2019). Compared with other stormwater management systems, the later start time of the SCP is a disadvantage, and this point may cause it to lack compatibility with existing urban stormwater management systems models.…”

Section: Disadvantages Of Technology and Support Toolsmentioning

confidence: 99%

“…the intensity, frequency, and distribution range of short-term are increasing in some areas, it also affects the efficiency of urban drainage systems (Astaraie-Imani et al 2012;Kundzewicz et al 2014;Hu et al 2015;Salerno et al 2018). The sub-optimal development of cities has caused changes in the subsurface, with increases in impervious surfaces leading to increased surface runoff and surface runoff velocity, and reduced concentration time (Dietz 2007;Hou et al 2019). The inability of traditional urban drainage systems to adapt to increased urbanisation leads to an increased possibility of urban waterlogging during storms, which can have huge impacts on infrastructure and residents' lives and property (Qin et al 2013;Li et al 2017;Chan et al 2018).…”

Section: Introductionmentioning

confidence: 99%

A review of the progress in Chinese Sponge City programme: challenges and opportunities for urban stormwater management

Zhang

2021

Water Supply

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Urbanization has been the main driving force for China's economic growth in recent years; however, the highly concentrated urbanized lifestyle has brought many environmental problems to residents, the most urgent of which is urban stormwater management. Some countries have proposed plans for urban stormwater management, such as Low Impact Development (LID), Water Sensitive Urban Design (WSUD), Sustainable Urban Drainage Systems (SUDS). As a country with relatively underdeveloped urban stormwater management, China's government proposed an ambitious urban stormwater management plan in 2014, called the Sponge City Programme, which means that a city is designed to act like a sponge, with good ‘resilience’ in adapting to environmental changes and coping with natural disasters. As of 2021, this programme has led to SCP projects in 30 pilot districts all over China, the Sponge City Programme construction impacts both urban development and resident's life. However, there are risks and challenges associated with these projects. Using government research documents as a framework, this paper carefully reviews the progress of the Sponge City Programme in recent years and shows the main challenges faced by Sponge City Programme in terms of connotation, investment, and technology. On this basis, the paper puts forward practical suggestions for the development of the Sponge City Programme and details potential opportunities of new technology, ideology, planning, and flexible investment.

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“…The study area is located in the middle eastern region of Jinfeng District in Yinchuan City, Ningxia, China, with the dense population, developed industry, and the area of 17.61 km 2 (Figure 1). The study area belongs to the typical middle-temperate continental climate with the average annual temperature of 8.5 C, the annual hours of sunshine between 2800 and 3000 h, and the average annual precipitation of 180.94 mm (Hou, Mao, et al 2019). The main land-use types are residential and industrial land, traffic land, water body, green land, and unused land.…”

Section: Study Areamentioning

confidence: 99%

Spatial simulation of rainstorm waterlogging based on a water accumulation diffusion algorithm

Hou

2020

Geomatics, Natural Hazards and Risk

Self Cite

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This study presents a water accumulation diffusion algorithm to spatially simulate rainstorm-induced waterlogging for people's lives and property safety. Taking part of Jinfeng District in Yinchuan City, China, as a study area, a storm water management model (SWMM) model is constructed with the aid of geographic information system (GIS) and remote sensing (RS) technologies. GIS is used to divide subcatchments, generalize drainage system, set parameters, construct spatial geodatabase, and identify flood extents and depths. RS is used to obtain land-use/land-cover information. The water accumulation diffusion algorithm is then designed using the strategies of the dynamic interactions between pipes and surface and between central pixel and its neighbourhood pixels to transform water accumulation volume of sub-catchment into the submerged range and water accumulation depth. Positions, extents, depths, and volumes of water accumulation from pipe network and surface are simulated, respectively. The spatial simulation precisions of rainstorm waterlogging from the pipe network and surface are verified according to the measured and cyber rainstorm data, respectively. The results show that (1) the number of water accumulation nodes increases with the increase of rainfall intensity; (2) urban waterlogging is mainly distributed in the intersects of roads, low depressions and the aged drainage networks; and (3) spatial simulation of urban rainstorm waterlogging based on the GIS, RS, and SWMM techniques and the water accumulation diffusion algorithm is reliable. The results can provide decision-makings to predict rainstorm waterlogging, design drainage network, and construct a sponge city. ARTICLE HISTORY

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Spatial simulation of the ecological processes of stormwater for sponge cities

Cited by 50 publications

References 35 publications

Addressing Challenges of Urban Water Management in Chinese Sponge Cities via Nature-Based Solutions

Addressing Challenges of Urban Water Management in Chinese Sponge Cities via Nature-Based Solutions

A review of the progress in Chinese Sponge City programme: challenges and opportunities for urban stormwater management

Spatial simulation of rainstorm waterlogging based on a water accumulation diffusion algorithm

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