Emergy ecological model for sponge cities: A case study of China

Zhou, Hong; Li, Huiping; Zhao, Xianbo; Ding, Yanyue

doi:10.1016/j.jclepro.2021.126530

Cited by 20 publications

(6 citation statements)

References 46 publications

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“…In addition to flooding caused by heavy rain, the southeast coast of the SSCZ is susceptible to storm surges caused by typhoons [36]. It is recommended that river banks be built along the coast or mangroves or rice grass be planted to resist the impact of wind and waves [29].…”

Section: Discussionmentioning

confidence: 99%

“…GIS-based hydrological analysis tools are widely applicable to areas without hydrological data [3,20,26,27]. In summary, the evaluation of urban hydrogeological conditions focused on total runoff control, urban pipe network planning, and design or measures of sponge city construction [20,[28][29][30]. In addition, these studies were mainly applied in the construction technology of engineering geology or hydrogeology, without considering the vulnerability of urban waterlogging based on social and economic aspects [31].…”

Section: Introductionmentioning

confidence: 99%

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Integrating Sponge City Concept and Neural Network into Land Suitability Assessment: Evidence from a Satellite Town of Shenzhen Metropolitan Area

Luo

Wang

Sha

et al. 2021

Land

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Land suitability assessment is fundamental in space control planning and land development because of its effects on land use and urban layout. Rainstorms and waterlogging have become one of the most common natural disasters in the coastal areas of China. As a result, the concept of an ecological sponge city was incorporated into the construction of cities in the future. Taking Shenzhen–Shantou special cooperation zone (SSCZ), we constructed a storm flooding model based on the SCS flow generation model and GIS to explore the spatial distribution characteristics of the flooding risk in a rainstorm of 100-year lasting 1 h. Combined with population and economic indicators, a radial basis function (RBF) network was utilized to evaluate the environmental risk, the vulnerability of disaster-bearing bodies, and the rain–flood resilience of sponge cities. The self-organizing feature mapping (SOFM) model was used for cluster analysis. Spatial differences were found in the construction suitability of the study area. A suitable construction area (73.59% of the entire area) was located downtown. The construction of the artificial spongy body in the highest vulnerable area (3.25%) needs to be strengthened. The control construction area (3.3%) is located along the banks of the river, with relatively high risk and low resilience of flood control engineering. Ecological construction (19.85%) serves as the sponge body of ecological buffer. The factors of waterlogging, ecology, population, and economy could be integrated comprehensively by applying neural network methods for urban planning and construction.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integrating Sponge City Concept and Neural Network into Land Suitability Assessment: Evidence from a Satellite Town of Shenzhen Metropolitan Area

Luo

Wang

Sha

et al. 2021

Land

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“…Indeed, the relevant theories for stormwater management have been improved and optimized via continued theoretical and practical development [9,10]. Moreover, sponge city pilot projects have been implemented via various distinctive technical routes and measures to establish a versatile sponge city construction system by accumulating abundant replicable empirical experience to inform future sponge city construction projects [2,[11][12][13]. Numerous practical problems related to project selection, goal orientation, project timing, labor division and cooperation, red line boundaries, measure applicability, and utilization of an evaluation system in the later stages of design implementation in sponge city construction have also gradually emerged.…”

Section: Development Of the Sponge City Conceptmentioning

confidence: 99%

Comprehensive Case Study on the Ecologically Sustainable Design of Urban Parks Based on the Sponge City Concept in the Yangtze River Delta Region of China

Rao

2023

Sustainability

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Owing to widespread urbanization, previously elastic and permeable ecological foundations are being continuously hardened, sealed, and channelized, leading to problems such as intensified urban convergence, water pollution, seasonal rain, and flood disasters. Urban parks and large green spaces, as rare large, cavernous bodies in cities, can effectively address the abovementioned urbanization problems. This study holistically analyzed and discussed the current developments in the sponge city concept using several case studies of recent ecologically sustainable designs for urban parks in the Yangtze River Delta region of China. Under basic conditions of the same hydrological characteristics and considering the differences in other external conditions and the environment, sponge city construction aims to address the actual characteristics and needs of specific projects, develop applicable goal-oriented sponge city constructions, and ensure design practices around a goal-oriented method. Practical problems associated with identifying specific design features, priorities, and measures were then identified according to the project location, goals, and characteristics. Thus, this study details various goal-oriented sponge city designs and their application methods to inform future design efforts.

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“…The GIS approach has been widely used in urban research, encompassing areas such as bibliometric analysis [18], dynamic evaluation [19], disaster susceptibility [20], smart perspective [21,22], ecological risk [23], urban greenspace accessibility [24], ecological security [25], land-use change assessment [26], and more. The emergy method is also frequently utilized in urban research [27][28][29][30][31][32][33][34][35][36][37][38][39][40]. Its advantage lies in the ability to quantitatively calculate various inputs and outputs of urban systems, which facilitates a clear identification of the sustainability status of the city system.…”

Section: Introductionmentioning

confidence: 99%

A Sustainable Evaluation Study Based on Emergy–Geographic Information System (GIS) Methodology in Hangzhou City from 2010 to 2035

Liu,

Cai,

Zhang

2023

Buildings

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Sustainability studies are vital for the long-term development of ecological cities. For cities, single qualitative or quantitative evaluation studies cannot effectively illustrate the ecological and sustainable status of a city. This study employs the emergy–geographic information system (GIS) method to conduct a sustainability evaluation of a city, so as to effectively verify the evaluation results. The emergy method and GIS are both commonly used approaches to address urban issues, but their synergistic effect has rarely been considered, explored, and utilized in urban planning. This study aims to investigate this effect on Hangzhou city through comparative analysis. The results show that rain (geopotential energy) and rain (chemical potential energy) have the highest emergy values from 2000 to 2035, followed by solar emergy, wind emergy, and geothermal heat emergy. These findings are also supported by the GIS map that shows a similar pattern with renewable emergy. Using the five plots (cropland, woodland, grassland, water area, and built-up land) on the GIS map as examples, the accuracy of emergy calculation results for Hangzhou city can be verified, demonstrating the effectiveness of the emergy–GIS methodology. This research provides practical recommendations for city designers and professionals worldwide on urban sustainability. By incorporating both emergy and GIS methods, cities can make informed decisions toward achieving environmentally sustainable development.

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Emergy ecological model for sponge cities: A case study of China

Cited by 20 publications

References 46 publications

Integrating Sponge City Concept and Neural Network into Land Suitability Assessment: Evidence from a Satellite Town of Shenzhen Metropolitan Area

Integrating Sponge City Concept and Neural Network into Land Suitability Assessment: Evidence from a Satellite Town of Shenzhen Metropolitan Area

Comprehensive Case Study on the Ecologically Sustainable Design of Urban Parks Based on the Sponge City Concept in the Yangtze River Delta Region of China

A Sustainable Evaluation Study Based on Emergy–Geographic Information System (GIS) Methodology in Hangzhou City from 2010 to 2035

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