Maintenance of low impact development facilities: A case study of pilot sponge cities in China

Qiao, Xiu-Juan

doi:10.1016/j.jclepro.2023.139008

Cited by 5 publications

(1 citation statement)

References 47 publications

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“…Conversely, if the facilities are designed on too large a scale, their efficiency will be reduced, construction costs will increase, and there may be idle facilities, increased energy consumption, and higher operating costs. Regular maintenance is crucial for sponge city facilities to avoid impaired function and resource wastage [14]. Therefore, it is important to rationalise the layout and allocation of these facilities to fully utilise their capacity within a certain cost range [15].…”

Section: Introductionmentioning

confidence: 99%

Storage Scale Assessment of a Low-Impact Development System in a Sponge City

Xie,

He,

Dong

et al. 2024

Water

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A sponge city is an established urban stormwater management approach that effectively reduces urban runoff and pollutant discharges. In order to plan and design, estimate costs, and evaluate the performance of urban sponge city systems, it is essential to calculate the storage scale. In this context, a sponge city storage scale and calculation method based on a multifactor spatial overlay was designed, utilising the starting area of the Dafeng Hi-tech Development Zone in Yancheng City, China, as an illustrative example. The indicators for assessing the impact of sponge city systems on river plain networks are constructed based on four aspects: land planning, building density, water surface rate and green space rate. The relative importance of each indicator was determined based on the necessity of controlling runoff from land parcels and the appropriateness of facility construction. The annual runoff control rate of the 39 low-impact development control units in the study area was calculated using ArcGIS through multifactor spatial overlay mapping and weighting. The results showed that (1) the Geographic Information System (GIS)overlay technology can effectively assist in the decomposition of LID scales; (2) data can be derived, including the design storage volume and other basic control scale indicators for each unit. The study results are expected to serve as a reference for the preparation of special low-impact development plans in the river plain network area of China and the promotion of the construction of a sustainable blue–green system in the city.

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Section: Introductionmentioning

confidence: 99%

Storage Scale Assessment of a Low-Impact Development System in a Sponge City

Xie,

He,

Dong

et al. 2024

Water

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Guidance experiments on residents’ participation in decision-making activities related to urban settlement regeneration in China

Zhang,

Yang,

Xia

et al. 2024

Humanit Soc Sci Commun

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In China, how to guide residents on actively participating in decision-making activities related to urban settlement regeneration is critical and must be addressed. Referring to the theory of planned behavior (TPB), combined with the characteristics of regeneration decision-making, the external environmental factors affecting residents’ participation in such decision-making activities, through impacting psychological environmental factors, were determined by establishing the structural equation model (SEM) and conducting a survey. The guidance measures of enhancing external pressure and providing regeneration information were selected. Participation guidance experiments were designed, and the typical communities located in the development zone and city center of Harbin, China were selected as the experiment regions. Forty-eight subjects were screened in each experimental region and divided into six groups; three participated in the experiments regarding the leading role of representatives, enhancing communication, and incentives, and three in the experiments on policy advocacy, regeneration technology popularization, and regeneration case sharing. Guidance measures’ effects for introversion or extraversion, regardless of region are, from large to small, incentives, regeneration case sharing, leading role of representatives, enhancing communication, policy advocacy and regeneration technology popularization. There are significant differences in the effects of enhancing external pressure measures between different personalities, and enhancing external pressure measures are more effective for extraversion. Although the differences in the effects of providing regeneration information measures are statistically insignificant, providing such measures is more effective for introversion. The results reflect the analysis of the influencing factors. TPB application is enriched and the guidance experiments used to verify guiding measures’ effectiveness are provided. Practically-significant implications include: communities and proprietor committees should organize neighborhood-relationship to enhance community activities, with the proprietor committee solving residents’ daily problems to win authority and trust, positively guiding residents’ participation. Community staff can also understand, via daily participation, residents’ personality traits, so as to implement the above-mentioned guidance measures.

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Integrated assessment of available water volume for sustainable sponge city construction – A case study in Xi'an, China

Luo,

Su,

Wang

et al. 2024

Water Science &Amp; Technology

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To address the lack of theoretical guidance for sponge city construction (SCC) in China, this study introduces a method to evaluate the available water volume (AWV) in urban watersheds. This evaluation is based on the water balance relationship, water volume, and ecological water demand (EWD). The Xi'an urban area was selected as a case study due to its water shortage and flooding issues. Results show monthly surface and subsurface AWV ranging between 53.06 and 53.98 million m3 and between 8,701.89 and 8,898.14 million m3, respectively. By maximizing the potential for surface AWV, an annual water supply of 527.75 million m3 could be provided, surpassing the annual artificial water consumption of 394.20 million m3, effectively addressing water scarcity. During the rainy season, implementing measures such as employing permeable paving materials, establishing wetlands and rainwater gardens, and constructing lakes and reservoirs can mitigate flooding caused by rainfall exceeding 32.8 mm. While the subsurface space in Xi'an holds significant potential for subsurface AWV utilization, revitalizing the ecological environment of subsurface water is crucial. Overall, the AWV theoretical framework offers a comprehensive solution to water shortage and flooding issues in the Xi'an urban area, serving as a vital theory for SCC.

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Maintenance of low impact development facilities: A case study of pilot sponge cities in China

Cited by 5 publications

References 47 publications

Storage Scale Assessment of a Low-Impact Development System in a Sponge City

Storage Scale Assessment of a Low-Impact Development System in a Sponge City

Guidance experiments on residents’ participation in decision-making activities related to urban settlement regeneration in China

Integrated assessment of available water volume for sustainable sponge city construction – A case study in Xi'an, China

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