Hydrological Environmental Responses of LID and Approach for Rainfall Pattern Selection in Precipitation Data-Lacked Region

Li, Jiake; Deng, Chenning; Li, Huaien; Ma, Menghua; Li, Yajiao

doi:10.1007/s11269-018-1990-9

Cited by 31 publications

(17 citation statements)

References 13 publications

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“…In this paper, the rain pattern was designed to use 3 h in short duration, with a time step of 5 min and a rain peak coefficient of design rainfall events of 0.4. Li et al [15] simulated the hydrological and environmental effects at different return periods of the study area. They concluded that with the increase in rainfall intensity, the rainfall with Chicago pattern increased the parameters such as the total amount of surface runoff, total discharge peak flow, and total pollution load.…”

Section: Rainfall Condition Designmentioning

confidence: 99%

Simulation of Rain Garden Effects in Urbanized Area Based on Mike Flood

Zhang

et al. 2018

Water

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An urban storm and surface water pollution model (MIKE FLOOD) was used to assess the impact of rain gardens on water quantity and quality for an urban area in Xi'an. After the rain garden measures were added, the results show that: (1) In the case where the total proportion of rain gardens was 2%, the overflow reduction rate was 6.74% to 65.23%, the number of overflow points reduction rate was 1.79% to 65.63%, the overload pipes reduction rate was 0% to 11.15%, the runoff reduction rate was 1.93% to 9.69%; (2) Under different rainfall conditions, the load reduction rate of suspended solids (SS), chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP) were 2.36% to 30.35%, 2.37% to 30.11%, 2.34% to 30.08%, and 2.32% to 31.35%, respectively; (3) The submersion ranges of different submerged depths and submerged durations were reduced by 0.30% to 64.18% and 7.12% to 100%, respectively. The statistics of the automatic modeling and intelligent analysis system (AMIAS) showed that the rain garden regulation range of the waterlogging risk area was 0.78% to 100%. The rain garden has a good control effect on urban storm runoff in terms of water volume and water quality, but as the rainfall recurrence interval increases, the control effect will decrease.

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Section: Rainfall Condition Designmentioning

confidence: 99%

Simulation of Rain Garden Effects in Urbanized Area Based on Mike Flood

Zhang

et al. 2018

Water

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“…The design rainfall events of 2-and 5-year recurrence periods were adopted to verify the model stability under different rainfall conditions. The simulated runoff coefficients of two rainfall events were 0.523 and 0.597, which meet the requirements of the comprehensive runoff coefficient (0.5-0.7) in residential areas with dense buildings [26][27]. Comparing the rainfall and flood peak flow at each outlet under 2-and 5-year recurrence periods, it was found that the peak flow increased with the increase of rainfall amount, which confirmed to the runoff production and flow collection pattern.…”

Section: Calibration and Validationmentioning

confidence: 93%

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

Li¹,

Ma²,

Li³

et al. 2020

Pol. J. Environ. Stud.

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“…The Chicago rain type can fully reflect the characteristics of rain patterns, in which rain peaks are partially independent of rainfall duration, and the calculated flood peak flow is relatively stable. This type has good adaptability to the simulation of an urban rainstorm process and has been effectively applied in many cities in China (Li, Deng, Li, Ma, & Li, ). The Chicago rain type was also adopted in the study area to design different rainfall conditions (i.e., rainfall duration, recurrence period, and rain peak coefficient; Table ).…”

Section: Methodsmentioning

confidence: 99%

“…Population standard deviation was used to calculate the dispersion degree of the simulation results under different design conditions. The analytic hierarchy process (AHP; Li et al, ) was applied to the tectonic hierarchical structure model for calculating the synthetical weight values of different factors on the evaluation target. In this manner, the influence degree of factors on the regulatory effects of water quantity and quality was analyzed.…”

Section: Methodsmentioning

confidence: 99%

Influence analysis of different design conditions on urban runoff and nonpoint source pollution

et al. 2019

Water Environment Research

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Urban waterlogging and nonpoint source (NPS) pollution caused by urbanization have considerably increased, and their control effects are affected by many factors. This study established a distribution model to analyze the influences of different rainfall conditions and rain garden layouts on runoff output and NPS pollution. Simulation results showed that (a) the reduction rates of the runoff and pollution load decreased from 45% to 23% and from 57% to 23% with increasing rainfall duration (1-24 hr). The flow and concentration peaks, total discharge amount and load increased, and the reduction rates of the runoff and pollution load decreased from 47% to 32% and from 60% to 21%, respectively, with increasing recurrence period (1-50 annual). The changes in the rain peak coefficient had minimal reduction effect on water quantity and quality. (b) Under different rain garden layouts, the reduction rates of the runoff and pollution load were 37%-52% and 13%-57%, respectively. The reduction effects of the runoff and pollution load improved, whereas amplitudes decreased with increasing rain garden layouts (0%-4%). (c) Rainfall duration and rain garden proportion greatly influenced the runoff and load reductions, respectively. © 2019 Water Environment Federation • Practitioner points• The reduction effects of runoff and pollution load under different rainfall conditions were simulated and analyzed. • The reduction effects of runoff and pollution load under different setting proportions of rain garden were simulated and analyzed. • The influence degrees of different design conditions on water quantity and quality reduction rates were evaluated.• Key words analytic hierarchy process; rain garden layout; rainfall condition; reduction effect; Stormwater Management Model

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Hydrological Environmental Responses of LID and Approach for Rainfall Pattern Selection in Precipitation Data-Lacked Region

Cited by 31 publications

References 13 publications

Simulation of Rain Garden Effects in Urbanized Area Based on Mike Flood

Simulation of Rain Garden Effects in Urbanized Area Based on Mike Flood

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

Influence analysis of different design conditions on urban runoff and nonpoint source pollution

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