LOW IMPACT DEVELOPMENT
; LAND-USE CHANGE
; SURFACE RUNOFF
; CLIMATE-CHANGE
; MANAGEMENT-PRACTICES
; LID PRACTICES
; PERMEABLE PAVEMENT
; OPTIMAL SELECTION
; URBANIZATION
; MODEL
WOS学科分类:
Environmental Sciences
WOS研究方向:
Environmental Sciences & Ecology
英文摘要:
Evaluation of the effectiveness of green infrastructure (GI) practices on improving site hydrology and water quality and their associated cost could provide valuable information for decision makers when creating development/re-development strategies. In this study, a watershed scale rainfall-runoffmodel (the Long-Term Hydrologic Impact Analysis - Low Impact Development model, the L-THIA-LID 2.1 model) was enhanced to improve its simulation of urban water management practices including GI practices. The enhanced model (L-THIA-LID 2.2) is capable of: simulating in more detail impervious surfaces including sidewalks, roads, driveways, and parking lots; conducting cost calculations for converting these impervious surfaces to porous pavements; and, selecting suitable areas for bioretention in the study area. The effectiveness of GI practices on improving hydrology and water quality in a combined sewer overflow urban watershed-the Darst Sewershed in the City of Peoria, IL-was examined in eleven simulation scenarios using 8 practices. The total cost and the cost effectiveness for each scenario considering a 20-year practice lifetime were calculated. Results showed: combined implementation of GI practices performed better than applying individual practices alone; adoption levels and combinations of GI practices could potentially reduce runoff volume by 0.2-23.5%, TSS by 0.18-30.8%, TN by 0.2-27.9%, and TP by 0.2 to 28.1%; adding more practices did not necessarily achieve substantial runoff and pollutant reductions based on site characteristics; the most cost-effective scenario out of eleven considered had an associated cost of $9.21 to achieve 1 m(3) runoff reduction per year and $119 to achieve 1 kg TSS reduction per year assuming residents' cooperation in implementing GI practices on their properties; adoption of GI practices on all possible areas could potentially achieve the greatest runoff and pollutant reduction, but would not be the most cost-effective option. This enhanced model can be applied to different locations to support assessing the beneficial uses of GI practices. (c) 2019 Published by Elsevier B.V.
1.Purdue Univ, Dept Agr & Biol Engn, 225 South Univ St, W Lafayette, IN 47907 USA 2.SUNY Albany, Dept Environm & Sustainable Engn, Albany, NY 12222 USA 3.Purdue Univ, USDA ARS, Natl Soil Eros Res Lab, W Lafayette, IN 47907 USA 4.Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA 5.Univ Montana, Off Execut Vice President & Provost, Missoula, MT 59812 USA
Recommended Citation:
Chen, Jingqiu,Liu, Yaoze,Gitau, Margaret W.,et al. Evaluation of the effectiveness of green infrastructure on hydrology and water quality in a combined sewer overflow community[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019-01-01,665:69-79