According to the above simulation results, the LID system was further optimized in combination with the overall site design and the current situation of green space in urban built-up areas. The LID system with infiltration and retention facilities as a base and interspersed with purification and storage facilities were finally constructed (Mo & Yu 2012; Wang et al. 2015; Lin 2018b), then the scale and capacity of each facility were determined (Table 9).

Table 9

Stormwater management facility scale capacity

Name of facilityThe average depth (m)Quantity (m2)Storage capacity (m3)
Artificial purification wetlands 0.20 3,279.94 655.99
Vegetation swale 0.20 7,299.96 1,459.99
Bioretention pool 0.30 22,291.29 6,687.39
Rain garden 0.30 26,914.84 8,074.45
Wetland purification 0.70 26,327.66 18,429.36
Reservoir 1.15 23,714.55 21,271.73
Total sum – 109,828.2 62,578.91
Name of facilityThe average depth (m)Quantity (m2)Storage capacity (m3)
Artificial purification wetlands 0.20 3,279.94 655.99
Vegetation swale 0.20 7,299.96 1,459.99
Bioretention pool 0.30 22,291.29 6,687.39
Rain garden 0.30 26,914.84 8,074.45
Wetland purification 0.70 26,327.66 18,429.36
Reservoir 1.15 23,714.55 21,271.73
Total sum – 109,828.2 62,578.91

Close Modal