Introduction
Research Methods
1. Selection of target areas and digitization of satellite images
2. Application of green infrastructure
3. Analysis of the absorption amount of carbon dioxide and the reduced runoff volume
Results and Discussion
1. Effects of the installation of green infrastructure
2. Calculation of the absorption amount of carbon dioxide
3. Effect on the reduction of runoff
Table 2
(Unit: 1,000 L) | Rainfall discharge volume | Reduced runoff volume | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|||||||||||
Date Precipitation | Asphalt | Case Az | Case By | Case Cx | Case A | Case B | Case C | |||||
|
|
|||||||||||
Max. | Min. | Max. | Min. | Min. | Max. | Min. | Max. | |||||
100% | 61% | 37% | 93% | 67% | 36% | |||||||
|
||||||||||||
1/6 | 5.0 | 245.6 | 154.7 | 95.8 | 17.2 | 157.2 | 81.1 | 90.9 | 149.8 | 228.4 | 88.4 | 164.6 |
2/16 | 17.5 | 859.7 | 541.6 | 335.3 | 60.2 | 550.2 | 283.7 | 318.1 | 524.4 | 799.5 | 309.5 | 576.0 |
2/21 | 5.5 | 270.2 | 170.2 | 105.4 | 18.9 | 172.9 | 89.2 | 100.0 | 164.8 | 251.3 | 97.3 | 181.0 |
3/18 | 36.5 | 1,793.1 | 1,129.6 | 699.3 | - | 1,147.6 | 591.7 | 663.4 | 1,093.8 | - | 645.5 | 1,201.4 |
4/2 | 8.5 | 417.6 | 263.1 | 162.9 | 29.2 | 267.2 | 137.8 | 154.5 | 254.7 | 388.3 | 150.3 | 279.8 |
4/3 | 15.0 | 736.9 | 464.2 | 287.4 | 51.6 | 471.6 | 243.2 | 272.6 | 449.5 | 685.3 | 265.3 | 493.7 |
4/4 | 10.0 | 491.3 | 309.5 | 191.6 | 34.4 | 314.4 | 162.1 | 181.8 | 299.7 | 456.9 | 176.9 | 329.1 |
4/14 | 8.0 | 393.0 | 247.6 | 153.3 | 27.5 | 251.5 | 129.7 | 145.4 | 239.7 | 365.5 | 141.5 | 263.3 |
4/19 | 20.5 | 1,007.1 | 634.5 | 392.8 | - | 644.5 | 332.3 | 372.6 | 614.3 | - | 362.5 | 674.7 |
4/20 | 15.0 | 736.9 | 464.2 | 287.4 | 51.6 | 471.6 | 243.2 | 272.6 | 449.5 | 685.3 | 265.3 | 493.7 |
4/29 | 13.5 | 663.2 | 417.8 | 258.6 | 46.4 | 424.4 | 218.9 | 245.4 | 404.6 | 616.8 | 238.8 | 444.3 |
5/11 | 8.0 | 393.0 | 247.6 | 153.3 | 27.5 | 251.5 | 129.7 | 145.4 | 239.7 | 365.5 | 141.5 | 263.3 |
5/12 | 11.0 | 540.4 | 340.4 | 210.7 | 37.8 | 345.8 | 178.3 | 199.9 | 329.6 | 502.6 | 194.5 | 362.1 |
6/20 | 13.5 | 663.2 | 417.8 | 258.6 | 46.4 | 424.4 | 218.9 | 245.4 | 404.6 | 616.8 | 238.8 | 444.3 |
6/24 | 10.5 | 515.8 | 325.0 | 201.2 | 36.1 | 330.1 | 170.2 | 190.9 | 314.7 | 479.7 | 185.7 | 345.6 |
6/25 | 8.5 | 417.6 | 263.1 | 162.9 | 29.2 | 267.2 | 137.8 | 154.5 | 254.7 | 388.3 | 150.3 | 279.8 |
6/26 | 45.5 | 2,235.2 | 1,408.2 | 871.7 | - | 1,430.5 | 737.6 | 827.0 | 1,363.5 | - | 804.7 | 1,497.6 |
7/8 | 9.0 | 442.1 | 278.5 | 172.4 | 30.9 | 283.0 | 145.9 | 163.6 | 269.7 | 411.2 | 159.2 | 296.2 |
7/9 | 16.0 | 786.0 | 495.2 | 306.5 | 55.0 | 503.0 | 259.4 | 290.8 | 479.5 | 731.0 | 283.0 | 526.6 |
7/12 | 11.5 | 564.9 | 355.9 | 220.3 | 39.5 | 361.6 | 186.4 | 209.0 | 344.6 | 525.4 | 203.4 | 378.5 |
7/22 | 14.0 | 687.8 | 433.3 | 268.2 | 48.1 | 440.2 | 227.0 | 254.5 | 419.5 | 639.6 | 247.6 | 460.8 |
7/23 | 37.5 | 1,842.2 | 1,160.6 | 718.5 | - | 1,179.0 | 607.9 | 681.6 | 1,123.8 | - | 663.2 | 1,234.3 |
7/24 | 30.0 | 1,473.8 | 928.5 | 574.8 | - | 943.2 | 486.3 | 545.3 | 899.0 | - | 530.6 | 987.4 |
7/29 | 15.0 | 736.9 | 464.2 | 287.4 | 51.6 | 471.6 | 243.2 | 272.6 | 449.5 | 685.3 | 265.3 | 493.7 |
8/8 | 10.0 | 491.3 | 309.5 | 191.6 | 34.4 | 314.4 | 162.1 | 181.8 | 299.7 | 456.9 | 176.9 | 329.1 |
8/25 | 35.0 | 1,719.4 | 1,083.2 | 670.6 | - | 1,100.4 | 567.4 | 636.2 | 1,048.8 | - | 619.0 | 1,152.0 |
9/11 | 10.0 | 491.3 | 309.5 | 191.6 | 34.4 | 314.4 | 162.1 | 181.8 | 299.7 | 456.9 | 176.9 | 329.1 |
9/12 | 5.0 | 245.6 | 154.7 | 95.8 | 17.2 | 157.2 | 81.1 | 90.9 | 149.8 | 228.4 | 88.4 | 164.6 |
10/1 | 42.0 | 2,063.3 | 1,299.9 | 804.7 | - | 1,320.5 | 680.9 | 763.4 | 1,258.6 | - | 742.8 | 1,382.4 |
10/10 | 14.5 | 712.3 | 448.8 | 277.8 | 49.9 | 455.9 | 235.1 | 263.6 | 434.5 | 662.5 | 256.4 | 477.3 |
10/11 | 8.0 | 393.0 | 247.6 | 153.3 | 27.5 | 251.5 | 129.7 | 145.4 | 239.7 | 365.5 | 141.5 | 263.3 |
10/27 | 25.0 | 1,228.1 | 773.7 | 479.0 | - | 786.0 | 405.3 | 454.4 | 749.2 | - | 442.1 | 822.9 |
11/7 | 17.5 | 859.7 | 541.6 | 335.3 | 60.2 | 550.2 | 283.7 | 318.1 | 524.4 | 799.5 | 309.5 | 576.0 |
11/8 | 17.0 | 835.1 | 526.1 | 325.7 | 58.5 | 534.5 | 275.6 | 309.0 | 509.4 | 776.7 | 300.6 | 559.5 |
11/13 | 25.0 | 1,228.1 | 773.7 | 479.0 | - | 786.0 | 405.3 | 454.4 | 749.2 | - | 442.1 | 822.9 |
11/16 | 12.5 | 614.1 | 386.9 | 239.5 | 43.0 | 393.0 | 202.6 | 227.2 | 374.6 | 571.1 | 221.1 | 411.4 |
11/23 | 9.0 | 442.1 | 278.5 | 172.4 | 30.9 | 283.0 | 145.9 | 163.6 | 269.7 | 411.2 | 159.2 | 296.2 |
11/25 | 10.5 | 515.8 | 325.0 | 201.2 | 36.1 | 330.1 | 170.2 | 190.9 | 314.7 | 479.7 | 185.7 | 345.6 |
12/2 | 7.5 | 368.4 | 232.1 | 143.7 | 25.8 | 235.8 | 121.6 | 136.3 | 224.8 | 342.7 | 132.6 | 246.9 |
12/3 | 8.8 | 432.3 | 272.4 | 168.6 | 30.3 | 276.7 | 142.7 | 160.0 | 263.7 | 402.0 | 155.6 | 289.6 |
12/10 | 8.7 | 427.4 | 269.3 | 166.7 | 29.9 | 273.5 | 141.0 | 158.1 | 260.7 | 397.5 | 153.9 | 286.4 |
12/14 | 9.2 | 452.0 | 284.7 | 176.3 | 31.6 | 289.3 | 149.1 | 167.2 | 275.7 | 420.3 | 162.7 | 302.8 |
|
||||||||||||
Total | 660.2 | 32,432.8 | 20,432.5 | 12,649.1 | 1,248.8 | 20,756.6 | 10,702.9 | 12,000.1 | 19,784.1 | 16,593.6 | 11,676.1 | 21,729.8 |
z Application of the method of Gilbert and Clausen (2006).
y Application of the method of Dreelin et al. (2006). Case B cannot apply to 20 mm or more precipitation.
x Application of the method of Collins et al. (2008).