Mapping the city-scale supply and demand of ecosystem flood regulation services—A case study in Shanghai

Shen, Ju; Du, Shiqiang; Huang, Qingxu; Yin, Jie; Zhang, Min; Wen, Jiahong; Gao, Jun

doi:10.1016/j.ecolind.2019.105544

Cited by 69 publications

(43 citation statements)

References 40 publications

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“…It has become a vital indicator in 352 urban spatial planning, especially in ecosystem services-based approaches [32]. Given that urban 353 green space plays an important role in urban flood mitigation, it is necessary to analyze the role of 354 green infrastructure in urban flood regulation priority identification [21,54]. Our results show that 355 the districts with low UFRES supply have high impervious surface percentage and low green space 356 percentage.…”

mentioning

confidence: 87%

“…Previous studies have created difference indicators (i.e., runoff reduction capacity, absorption ratio, runoff reduction volume [21,33,54,55]) to characterize UFRES supply (UFRESS). Following previous studies, urban runoff reduction capacity was used to represent UFRESS [21,50,55].…”

Section: Evaluating the Supply For Urban Flood Regulation Ecosystem Smentioning

confidence: 99%

“…Generally, UFRES demand is evaluated using flood risk level or vulnerability level [54,55,57]. In this study, we used a simplified urban vulnerability index to quantify UFRES, which was calculated by combining the population vulnerability and economic vulnerability indexes.…”

Section: Evaluating the Demand For Urban Flood Regulation Ecosystem Smentioning

confidence: 99%

“…where UFPRI i refers to the priority index of urban flood regulation in subdistrict i and UFRESD i and UFRESS i are the demand and supply indices of UFRES, respectively. To identify the hotspot areas of urban flood regulation priority areas, the quantile method was mostly used to present the high values or low values of UFRESS and UFRESD [54,57]. For example, previous studies regarded the top 20% areas of UFRESD or UFRESS as a hotspot or priority area [57].…”

Section: Identifying Urban Flood Regulation Priority Areasmentioning

confidence: 99%

“…In addition, previous research mainly used a natural breakpoints method to identify urban flood regulation hotspot areas [57]. We used spatial clustering analysis to produce a spatially explicit map of urban flood regulation priority areas (H-H) and L-L, H-L, and L-H areas, which is helpful to identify the subdistricts for sharing interregional UFRES [54].…”

Section: An Effective Approach To Identify Urban Flood Regulation Primentioning

confidence: 99%

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Identifying Urban Flood Regulation Priority Areas in Beijing Based on an Ecosystem Services Approach

Kuang

Sun

2020

Sustainability

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Climate change and rapid urbanization have severe impacts on urban flood regulation ecosystem services (UFRES). Quantifying the UFRES has attracted increasing attention for urban sustainable development. However, few studies have focused on how to identify urban flood regulation priority areas. In this study, we simulated urban surface runoff by using the soil conservation services-curve number model, and quantified UFRES supply and demand by using relative indicators (i.e., runoff reduction ratio and urban vulnerability) at the subdistrict scale in Beijing, China. Then, an urban flood regulation priority index was developed by integrating UFRES demand and supply, and further used to identify priority areas. The results show that the mean runoff reduction ratio in Beijing decreased from 38.70% (for a 1-year rainfall return period) to 24.74% (for a 100-year rainfall return period). Subdistricts with low UFRES supply were mainly located in the urban central area and the southeastern zone, while subdistricts with high UFRES demand were mainly located in the urban central region. Meanwhile, places with high priority for flood regulation were mainly located in the inner city, and low priority areas were mainly located in northwestern, southwestern, and northeastern Beijing. Our results also imply that the urban flood regulation priority index is an effective indicator to identify urban flood regulation priority areas. These findings could provide urban planners with a comprehensive understanding of UFRES and scientific guidance to improve them.Sustainability 2020, 12, 2297 2 of 18 impacts of storm water on human safety, infrastructure, and living environment quality in urban ecosystems, such as canopy interception by vegetation, soil water storage, and water storage capacity of wetlands and rivers [16][17][18][19][20]. Studies have reported that urban green spaces (e.g., urban parks and gardens, roads, residential green spaces) can provide flood regulation ecosystem services. For example, it was estimated that urban green space could store 88% of rainfall in Yixing, China, and vegetation types influenced the runoff regulation capacity of the city [20]. Due to the loss of urban green spaces during the urbanization process in Beijing, urban surface runoff regulation capacity decreased by 6% from 2000 to 2010 [21]. All these evidences indicate urban green spaces play an important role in enhancing the flood regulation services and improving urban resilience. UFRES is not only related to the integration of urban green-blue infrastructure, but is also affected by urban population density and the pattern of functional zones in the city [22,23].The ecosystem services-based approach is currently an important way to optimize and manage land to achieve sustainable development goals, especially in urban areas [24][25][26]. Spatial decision support tools integrating urban ecosystem services were developed to assist urban spatial planning practices [27]. The tradeoffs and synergies among different ecosystem services due to various...

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mentioning

confidence: 87%

Section: Evaluating the Supply For Urban Flood Regulation Ecosystem Smentioning

confidence: 99%

Section: Evaluating the Demand For Urban Flood Regulation Ecosystem Smentioning

confidence: 99%

Section: Identifying Urban Flood Regulation Priority Areasmentioning

confidence: 99%

Section: An Effective Approach To Identify Urban Flood Regulation Primentioning

confidence: 99%

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Identifying Urban Flood Regulation Priority Areas in Beijing Based on an Ecosystem Services Approach

Kuang

Sun

2020

Sustainability

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Identifying mismatches of ecosystem services supply and demand under semi‐arid conditions: The case of the Oasis City Urumqi, China

Shi

Halik

Mamat

et al. 2021

Integr Envir Assess & Manag

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Understanding the balance between supply and demand of ecosystem services (ESs) is helpful for sustainable urban management. However, the interactions among multiple ESs supplies and demands remain under-researched, and ESs supply and demand spatial heterogeneity and correlation characteristics at the city level are rarely studied, especially in arid areas. To fill this gap, we established a comprehensive assessment framework of ESs supply and demand through integrating multi-source remote sensing data, social economy, and policy objectives, for the oasis city of Urumqi, China. The ESs supplydemand mismatches were revealed at the city level, and the spatial relationship between the ESs supply and demand was analyzed using spatial statistics. The results demonstrated that: (1) The total quantity of supply and demand of food provision, carbon sequestration, PM 10 removal, and recreation services in Urumqi revealed that the demand was greater than the supply, the deficits being 16.10 × 10 7 kcal/ha, 6.88 × 10 4 t/ha, 155.86 kg/ha, and 697.26, respectively. (2) The supply and demand assessment of ESs revealed spatial differences from the city center to the suburbs, which further indicated that there are neighborhood similarities between the supply and demand of ESs. (3) The matching types of ESs supply and demand present obvious spatial heterogeneity, which can be divided into four types: High-high, high-low, low-high, and low-low. Owing to rapid urban development in the inner city, the city center is dominated by low-high, whereas the urban-rural ecotone is characterized by high-low, owing to the higher elevation and water resource advantages in the suburbs. Based on the analysis of the supply, demand, and matching of ESs, economic development and sustainable management policies are proposed for different ecological spaces.

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Assessment of flood regulation service based on source–sink landscape analysis in urbanized watershed

Zhou

Jiao

Han

et al. 2022

River Research & Apps

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Facing climate change and rapid urbanization, urban flooding has exposed human and properties to increasing disaster risks. The attention from researchers and decision‐makers to understand the key role of flood regulation service (FRS) in flood management has arisen. However, the mechanism of FRS supply–demand is little known from landscape scale. The FRS assessment methodology considering interacts between source, sink, and flow landscape was proposed in this study. The spatial distributions of surface runoff generation, runoff reduction capacity, and flood inundation were mapped using one‐dimensional rainfall–runoff method SCS‐CN and two‐dimensional flood propagation model CADDIES. Four 3‐hour designed rainfall scenarios ranging from nuisance to extreme events (3a, 11a, 56a, and 100a) were simulated. The Liuyang River Watershed in Changsha Municipality, China was selected for case study. The results showed that, the differences of runoff reduction coefficient and runoff generation volume between vegetation and built‐up landscape have shortened. The peak flood depth, extent of flood inundation, and peak flood velocity have increased continuously with the growing rainfall intensity. The number of source–sink mismatch catchment was the highest under 56 and 100a, and the most of source‐sink match catchments were observed under 3a. Under four rainfall scenarios, the changes of source–sink relationships were witnessed and the potentials of flow zone in source–sink mismatch catchments have increased. The FRS management framework concerning supply–demand connections has been proposed based on source–sink–flow analysis. These findings could provide a scientific basis for sustainable urban flood management and disaster risk mitigation.

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Mapping the city-scale supply and demand of ecosystem flood regulation services—A case study in Shanghai

Cited by 69 publications

References 40 publications

Identifying Urban Flood Regulation Priority Areas in Beijing Based on an Ecosystem Services Approach

Identifying Urban Flood Regulation Priority Areas in Beijing Based on an Ecosystem Services Approach

Identifying mismatches of ecosystem services supply and demand under semi‐arid conditions: The case of the Oasis City Urumqi, China

Assessment of flood regulation service based on source–sink landscape analysis in urbanized watershed

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