An integrated assessment of urban flooding mitigation strategies for robust decision making

Xie, Jiaqiang; Chen, Hao; Liao, Zhenliang; Gu, Xianyong; Zhu, Dajian; Zhang, Jin

doi:10.1016/j.envsoft.2017.06.027

Cited by 118 publications

(52 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, urban green spaces could be a very cost-effective way to decrease the need for expensive gray infrastructure, such as retention tanks and sewer systems [81]. However, urban green spaces have very limited runoff avoiding capacity, indicating that the combined development of green and gray infrastructure would be more effective and practical for flooding mitigation [82,83]. The runoff avoiding performance of various types of urban green spaces was acquired.…”

Section: Runoff Mitigation Of Urban Green Spacementioning

confidence: 99%

Assessing the Ecosystem Services of Various Types of Urban Green Spaces Based on i-Tree Eco

et al. 2020

View full text Add to dashboard Cite

Urban green spaces play a crucial role in maintaining urban ecosystem sustainability by providing numerous ecosystem services. How to quantify and evaluate the ecological benefits and services of urban green spaces remains a hot topic currently, while the evaluation is barely applied or implemented in urban design and planning. In this study, super-high-resolution aerial images were used to acquire the spatial distribution of urban green spaces; a modified pre-stratified random sampling method was applied to obtain the vegetation information of the four types of urban green spaces in Luohe, a common plain city in China; and i-Tree Eco model was further used to assess the vegetation structure and various ecosystem services including air quality improvement, rainfall interception, carbon storage, and sequestration provided by four types of urban green spaces. The modeling results reveal that there were about 1,006,251 trees in this area. In 2013, all the trees in these green spaces could store about 54,329 t of carbon, sequester about 4973 t of gross carbon, remove 92 t of air pollutants, and avoid 122,637 m 3 of runoff. The study illustrates an innovative method to reveal different types of urban green spaces with distinct ecosystem service productivity capacity to better understand their various roles in regulating the urban environment. The results could be used to assist urban planners and policymakers to optimize urban green space structure and composition to maximize ecosystem services provision.Sustainability 2020, 12, 1630 2 of 16 of various vegetation communities within the urban area [24][25][26][27][28][29], while there are few studies that analyze variations in types and functions of urban green spaces at finer scales [1,22,30]. Urban green spaces are divided into several types, reflecting the different needs that these spaces meet, which could further affect the different ecosystem services provision. The capacity of various green spaces ecosystem services provision is context-specific and different depending on their type and size [31,32]. Various types of urban green spaces such as public parks, road belt green space, wetland, and private gardens are extremely heterogeneous with different vegetation communities and diversities reflecting diverse social needs and personal preferences that further influence eco-function value provision [33].In China, spatially heterogeneous urban green spaces are classified into four main types, which are public parks, protective green spaces, square green spaces, and attached green spaces by individual location and function across urban area based on Standard for Classification of Urban Green Space (CJJ/T85-2017), which was released by Ministry of Housing and Urban-Rural Development of P.R.C. in 2017. Different social needs and ecological values that are driven by landowners' preferences and function-oriented design bring various types of urban green spaces [34]. Diverse vegetation preferences and differing management and maintenance practices reflect human-oriented d...

show abstract

Section: Runoff Mitigation Of Urban Green Spacementioning

confidence: 99%

Assessing the Ecosystem Services of Various Types of Urban Green Spaces Based on i-Tree Eco

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Efficient, well-designed GSIs are capable of reducing the volume and the peak of runoff up to 85%-100% [56]. However, depending upon the GSI type and its characteristics, the volume of runoff reduction can vary from 2% to 45% [57,58]. Many municipalities in the Mid-Atlantic region, including Philadelphia, have set a goal to reduce runoff by 10%-20%, using GSIs [59].…”

Section: Discussionmentioning

confidence: 99%

A Generalized Automated Framework for Urban Runoff Modeling and Its Application at a Citywide Landscape

Hosseiny

Crimmins

Smith

et al. 2020

Water

View full text Add to dashboard Cite

This research presents a fully automated framework for runoff estimation, applied to Philadelphia, Pennsylvania, a major urban area. Trends in global urbanization are exacerbating stormwater runoff, making it an increasingly critical challenge in urban areas. Understanding the fine-scale spatial distribution of local flooding is difficult due to the complexity of the urban landscape and lack of measured data, but it is critical for urban management and development. A one-meter resolution Digital Elevation Model (DEM) was used in conjunction with a model developed by using ArcGIS Pro software to create urban micro-subbasins. The DEM was manipulated to account for roof drainage and stormwater infrastructure, such as inlets. The generated micro-subbasins paired with 24-h storm data with a 10-year return period taken from the National Resources Conservation Service (NRCS) for the Philadelphia area was used to estimate runoff. One-meter land-cover and land-use data were used to estimate pervious and impervious areas and the runoff coefficients for each subbasin. Peak runoff discharge and runoff depth for each subbasin were then estimated by the rational and modified rational methods and the NRCS method. The inundation depths from the NRCS method and the modified rational method models were compared and used to generate percent agreement, maximum, and average of inundation maps of Philadelphia. The outcome of this research provides a clear picture of the spatial likelihood of experiencing negative effects of excessive precipitation, useful for stormwater management agencies, city managers, and citizen.

show abstract

“…4 shows the process of linking pipes/areas in close vicinity to each other. The benchmarks to determine the zone of sub-catchment area drains to each link are the two nodes connected to the link (Jang et al, 2018;Xie et al, 2017). GIS database layers are used to determine catchment area properties that intersect with drainage system elements.…”

Section: Excel2gis Tool: Extracting Input Data From Gis Layersmentioning

confidence: 99%

Modelling data of an urban drainage design using a Geographic Information System (GIS) database

Abbas

Salloom

Ruddock

et al. 2019

Journal of Hydrology

View full text Add to dashboard Cite

show abstract

An integrated assessment of urban flooding mitigation strategies for robust decision making

Cited by 118 publications

References 24 publications

Assessing the Ecosystem Services of Various Types of Urban Green Spaces Based on i-Tree Eco

Assessing the Ecosystem Services of Various Types of Urban Green Spaces Based on i-Tree Eco

A Generalized Automated Framework for Urban Runoff Modeling and Its Application at a Citywide Landscape

Modelling data of an urban drainage design using a Geographic Information System (GIS) database

Contact Info

Product

Resources

About