Evaluating Hydrological and Environmental
Effects for Low-Impact Development
of a Sponge City

Li, Jiake; Ma, Menghua; Li, Yajiao; Deng, Chenning; Pan, Baozhu

doi:10.15244/pjoes/109308

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…The most obvious characteristic is that the area of construction land increased rapidly in all periods. (3) As a modern new area, Xixian New Area has integrated a lot of ecological and landscape measures during urban construction, such as bioretention ponds and other LID facilities used in the construction of a sponge city, which has increased the area of water body and grass land areas in the region to a certain extent [48,49]. (4) The impact of urbanization on climate and regional runoff is also the driving factor of land-use change.…”

Section: Analysis On Driving Factors Of Land-use Changementioning

confidence: 99%

Land Use/Cover Change and Its Relationship with Regional Development in Xixian New Area, China

et al. 2022

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There is a close relationship between land use/cover change and regional development in new urban areas. In this paper, based on the land-use data before (2010, 2013) and after (2015, 2018) the establishment of Xixian New Area and the economic development data of the corresponding period, with the help of indexes such as the land use transfer matrix, relative change rate/net change rate and the composite index of land use degree, the temporal and spatial differences of land-use change and land use degree in the ten years before and after the establishment of Xixian New Area were analyzed, and the driving factors of land-use change and their relationship with the level of social and economic development were discussed. The results indicate that cultivated land and construction land are the main land-use types in Xixian New Area in the whole studying period. From 2010 to 2018, the area of cultivated land and forest land in the region decreased over time, but the construction land area continuously increased dramatically (increased by 36.5% from 2010 to 2018) and the land-use change corresponds basically to the construction and development process of the New Area. In the spatial transfer of land use, the transformation of cultivated land to construction land was the most evident, and the urbanization construction in the New Area occupied the most cultivated land. The composite index of land use degree in the New Area was generally high and increased with time. Geographical location and policy guidance are the main reasons for the spatial difference of land use degree. The land use benefits in the New Area increased significantly, and the land use degree was positively correlated with the level of regional, social and economic development. The main driving factor of land-use change was human activities guided by policy.

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Section: Analysis On Driving Factors Of Land-use Changementioning

confidence: 99%

Land Use/Cover Change and Its Relationship with Regional Development in Xixian New Area, China

et al. 2022

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“…Due to a high number of polygons in the study area, the initial set-up was performed by applying the swmmr-R package [29] (the script used can be found within the Supplementary Materials "Scrip S1_swmm.r"). Different values of parameters utilized (Tables 4 and 5) were estimated through a combination of field data, literature review, and model defaults according to the recommendation of Rossman and other works [15,30,31]. Along the Febres Cordero pipe network, 8 of the 134 outlets are usually flooded according to the SWMM.…”

Section: Calibration and Estimation Of Model Parametersmentioning

confidence: 99%

Influence of Low-Impact Development in Flood Control: A Case Study of the Febres Cordero Stormwater System of Guayaquil (Ecuador)

et al. 2022

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Urban flooding is a major problem in many coastal cities. The rapidly shifting patterns of land use and demographic increase are making conventional approaches to stormwater management fail. In developing countries such as Ecuador, a lack of monitoring, financial constraints and absence of proper policies exacerbate flooding problems. This work assesses the implementation of two Low Impact Development strategies (LIDs), namely, green streets and rain barrels, as nature-based solutions to mitigate flooding problems. The use of the “Stormwater Management Model” (SWMM) helped to contrast the new approach with the current state of the drainage system, including normal and extreme scenarios. With an implementation of 1.4% (19.5 ha) of the total area with LIDs, the reduction of runoff for short events (200 min) is around 20%, and for extreme events (within 24 h) is around 19% in comparison to the conventional approach. Flooded nodes were reduced to 27% for short events, and to 4% for extreme events. The peak flooding system had a reduction to 22% for short events and 15% for extreme events. These highlights help to increase city resilience, and authorities and stakeholders should engage in climate actions to reduce flood risks complementing drainage operations with nature-based solutions. Moreover, calibrated results in this article serve to increase awareness among municipal authorities regarding the importance of maintaining flooding records to improve modelling results for decision-makings processes.

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“…Many studies pay attention to the impact of different rainfall characteristics on runoff reduction of GIs [34][35][36][37]. Previous studies have found that the effect of runoff mitigation decreases as the return period increases [38][39][40]. Furthermore, there is no unified understanding of the impact of time to peak on the GI effect due to the different indicators and GI scenarios [38,41,42].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Rainstorm Characteristics on Runoff Quantity and Quality Control Performance Considering Integrated Green Infrastructures

et al. 2022

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Green infrastructure (GI) has been implemented globally to mitigate the negative effects of urbanization. GI also regulates the urban runoff process and reduces non-point source pollution by intercepting initial runoff pollution and stormwater storage. In this paper, the impacts on GI were quantified and analyzed, considering eight designed storms with a 24 h duration and eight others with a 2 h duration with the combination of two characteristics (return period and peak time). The runoff process and reduction effect of pollutants were simulated for GI combinations (green roofs, vegetative swale, bio-retention units, and permeable pavement) using the Storm Water Management Model, taking the Dongshan campus of Shanxi University as an example case study. The results show that the GI combination can reduce runoff, suspended solids (SS), and chemical oxygen demand (COD). For short- and long-duration rainstorms, the average reduction rates of runoff, SS, and COD were 39.7%, 38.8%, and 39.6%, and 36.5%, 31.7%, and 32%, respectively, indicating its better effectiveness for short-duration storms. The GI’s effect was more sensitive during the short-duration storms owing to the greater absolute value of the 2 h elastic coefficients versus that of the 24 h, and the best reduction effect was observed with a rainfall peak coefficient of 0.1. These results provide a scientific reference for GI planning and implementation under a changing climate in the future.

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Evaluating Hydrological and Environmental Effects for Low-Impact Development of a Sponge City

Cited by 8 publications

References 9 publications

Land Use/Cover Change and Its Relationship with Regional Development in Xixian New Area, China

Land Use/Cover Change and Its Relationship with Regional Development in Xixian New Area, China

Influence of Low-Impact Development in Flood Control: A Case Study of the Febres Cordero Stormwater System of Guayaquil (Ecuador)

Impacts of Rainstorm Characteristics on Runoff Quantity and Quality Control Performance Considering Integrated Green Infrastructures

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